The Treasure Experience

PROVENANCE

Notes from the line between the museum and the market.

No. 00110 August 2026The Argument8 min read

The Word They Use Against Us

Provenance is the chain from a thing back to the truth about it. It is also the whole argument for what this company is.

There's a word that does a great deal of work in my field, and almost nobody outside it knows what it means.

Provenance. In archaeology it isn't the country a thing came from, or the century. It's the exact position in the exact layer, and everything that was lying next to it. A gold coin with provenance can tell you which ship, which route, which year, whose hands it passed through, and what the crew was eating the week the vessel went down.

Strip the provenance away and the coin is still worth something. Gold is gold, and melt value is the floor under it. Above that floor sit the markings: a mint mark placing it in Mexico City or Potosí or Lima, an assayer's initial, a legible date, the die, the grade. Collectors pay real multiples for those, and they are right to. But every one of those marks is struck into the metal. They tell you about the coin.

Provenance is the layer that tells you about the world the coin came from, and it is the only layer the object does not carry itself. It exists in the record somebody made at the moment of recovery, or it does not exist at all. Melt survives anything. The markings survive anything. Provenance survives exactly one thing: whether someone wrote it down before the coin left the seabed.

So the same coin carries three prices. What the metal weighs. What the markings add. What the history adds on top of both. A coin torn out of a scatter has been capped at the second one permanently, by whoever lifted it. It has been converted from evidence into jewelry.

I'm leading with that word because it also belongs to the other half of my life. In business, provenance is chain of custody: the documented line back to the source that separates an asset from a rumor. Two disciplines, two vocabularies, one idea: value comes from an unbroken chain back to the truth about a thing.

That is not a coincidence. It's the thesis of this company, and it's why I'm starting this letter.

The accusation is half right

Let me say the uncomfortable part first, because you'll hear it from someone eventually and you should hear it from me.

In the academic world, "treasure hunting" is a slur, and "treasure hunter" is close to an accusation of vandalism. That isn't a stray opinion. It's codified. The Annex to UNESCO's 2001 Convention on the Protection of the Underwater Cultural Heritage states plainly that underwater cultural heritage "shall not be commercially exploited for trade or speculation," and names in-situ preservation, which means leaving a wreck exactly where it lies, as the first option. A meaningful share of the people I trained alongside would say that what this company does is, by definition, destruction.

And they are right about the thing they are right about.

Recovery done for the metal alone destroys the record permanently. You cannot re-excavate a site. The information exists exactly once. Pull the coins out of a scatter without recording it and you have turned a library into a pile of currency, and there is no amount of money on earth that buys the pages back. I have seen that done. It should make you angry. It makes me angry.

So the company doesn't argue with that part. It concedes the point completely, and then asks the second question, the one my field likes considerably less.

If in situ is the answer, what exactly is doing the preserving?

The sea is not a museum. It's a slow demolition.

Timber that survived three hundred years buried under sediment has years, not centuries, once the sediment moves and Teredo navalis gets to it. Trawl gear drags across sites. Storms rearrange the seabed. Hurricanes do in an afternoon what erosion needs a decade for. And the people actually looting wrecks, the ones with no conservation lab and no intention of publishing anything, are not observing the moratorium. They never were.

UNESCO's own commonly cited estimate puts something on the order of three million shipwrecks on the world's seabeds. The number that have been properly surveyed, excavated, conserved, and published is a rounding error against that figure. So in practice, for the overwhelming majority of sites, "preserved in situ" does not mean protected. It means no one is coming.

And why is no one coming? Not because archaeologists don't want to. Because deep-water archaeology costs what deep-water archaeology costs. Ship time runs into the tens of thousands of dollars a day before you've put a single vehicle in the water. Add the ROV. Add the conservation lab, where a single iron object can take years of treatment. Add the post-excavation analysis and publication, which is the part that nobody funds and everybody needs. Grant cycles run a year or two and are not shaped to pay for any of it.

The discipline that has the method has no capital. The industry that has the capital has no method.

That gap is where the artifacts are rotting. That gap is the entire business.

What the company actually is

Treasure Experience is not a treasure-hunting outfit that hired an archaeologist for cover. It is also not a group of academics who took the money reluctantly and feel guilty about it.

It is a commercial operation whose product is the record.

The revenue exists so the survey gets done to standard. So the conservation lab is funded for the full length of a treatment and not until the grant runs out. So the material gets published. So the story reaches more people in a month than a journal article reaches in a decade. A wreck nobody has heard of is a wreck nobody will ever protect.

Money is not the enemy of the record. Poverty is.

Every half-excavated site abandoned when funding lapsed, every collection sitting unconserved and degrading in a basement, every survey that happened once and never happened again: none of that is what too much commerce in this field looks like. It is precisely what not enough looks like.

"Finders keepers" is not a legal theory

There's a second caricature worth killing, because it's the one the public believes even when the academic version doesn't land: that this work is a race. You find it, you lift it, it's yours.

It has never worked that way, and the people who assumed it did have generally lost everything.

Wrecks sit inside somebody's law, and usually inside several bodies of law at once. Under the Law of the Sea, a coastal state can treat the removal of archaeological objects from the seabed out to twenty-four nautical miles as a violation of its own laws. Sunken warships don't stop being sovereign property because centuries passed. The United States asserts exactly that over its military craft, anywhere in the world, regardless of how long ago they went down, and other flag states assert the same over theirs. Then there is the source nation whose heritage it is, the admiralty court that decides whether you are a salvor or a trespasser, and the distinction between the law of salvage and the law of finds, which is the distinction between a fee and a fortune.

So the company does the unglamorous version. It goes to the jurisdictions before it goes to the site: permits, agreements, notification, and negotiated terms for how material is divided, conserved, displayed, and where it ultimately lives. With the states and agencies whose waters and heritage these are. In the open. Before anything is disturbed. I'm not naming where until the agreements are signed, because announcing a jurisdiction mid-negotiation is a reliable way to lose it. It is slow, it costs real money and real months, and it has killed opportunities worth having.

It does that anyway, and not only because it's the law. Go back to the word. Provenance has a legal segment as well as an archaeological one: a documented chain of permission and title running alongside the documented chain of context. Break either one and the object means less, is worth less, and can be taken from you outright. An artifact with no permission behind it isn't an asset. It's a liability with a nice patina.

The bill this comes with

Now the part that is aimed inward rather than at the critics.

Everything above is only defensible if the company actually does it. And it is very easy to say "we fund the science" and then quietly not do the science, because the science is the slow, expensive, unglamorous part, and for a couple of years nobody outside this building can tell the difference.

They get paid anyway. They aren't a tax on the business. They are the business. The day the company stops paying them, its critics are simply right, and everything built on the other side of that argument goes with it.

Why you'll get one of these every week

This won't be a status update. You have those already. This is the why, from an unusual seat: I'm the person here who was trained to care about the layer the coin was sitting in, and who also has to make the quarter. I don't experience those as two jobs. Most weeks I think they're the same one.

Some weeks I'll write about a piece of history. Some weeks about a hard number. Some weeks about something I got wrong.

If you take one thing from No. 001, take the word. Provenance. It's the chain from a thing back to the truth about it. It's what makes an artifact evidence instead of a trinket, and an organization an institution instead of an operation.

That chain is what this company actually sells. Don't break it.

Michael

Michael Bomhoff · Anthropologist & Archaeologist · Chief Technology Officer

The series
A weekly letter on the ground between academic archaeology and commercial recovery: why that ground exists, and what it costs to stand on it honestly. One idea per issue. Numbered and archived.
Cadence
Every Monday, 7:00 a.m. ET
Sources
  • UNESCO Convention on the Protection of the Underwater Cultural Heritage (2001), Annex Rules 1 and 2
  • UNCLOS Art. 303
  • Odyssey Marine Exploration v. Kingdom of Spain, 11th Cir. 2011

Every issue

1 issue · Every Monday, 7:00 a.m. ET

  1. No. 001

    The Word They Use Against Us

    The same coin carries three prices. What the metal weighs, what the markings add, and what the history adds on top of both. Only one of those can be destroyed by the person who lifts it.

    You're reading it
  2. No. 002

    Next Monday

    Not yet written

The five beats

The Argument
Academia against commerce, defended from a new angle.
The Object
One artifact, and what its context tells you that it can't.
The Number
What a decision in this business actually costs.
From the Field
A dive, a lab, a room, a negotiation.
The Mistake
Something we got wrong, and what it changed.

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