Mark Snow (born Martin Fulterman; August 26, 1946 – July 4, 2025) was an American composer for film and television. He was perhaps best known for composing the theme for The X-Files, and would compose
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ed98a5185fe9aee5f58ff272e33ec04b3a62d6a30e6924564c0fdaaa2e180dd. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c713cee4-563b-4449-a1b2-b4785a918d53.json and https://artists.proofprofile.net/proofs/artist/c713cee4-563b-4449-a1b2-b4785a918d53.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
In The Line Of Duty (Original Television Soundtrack)
The Substitute Wife (Original Motion Picture Soundtrack)
The Truth And The Light: Music From The X-Files
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ce424880a2e474e5c018c50b5ede0848bab6bb202a61f50072d3a024c1973db. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USWB19600523.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48004fa658ca1a79745b6eebd054c50c00d8772414044fce5f2d23c450cfc752. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USWB19600525.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4273cdebf7910d52d5cf00b306873a6380d2983dfda22dfb0c148d1168f6c221. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-17T00:52:54Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USWB19600526.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c23c49e9746a34c6b1e7de8b6b79ce5ce5c655c2c8f88f46c95dd823b39e4e2. Chain 2 (Bitcoin): anchored in block 959031 (2026-07-21T19:02:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USWB19600528.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9743df1c571e538bdb15c290cf44786b2b83a72c3d6c73283430a24d30cc2c41. Chain 2 (Bitcoin): anchored in block 959088 (2026-07-22T02:14:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USWB19600529.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32b25b63147e894a78f155c245b0aef3c28cb576c4f99dab0da572dda0f1f7d8. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USWB19600530.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0a3bc3fdaa9476d809bf2151765ab1468521159efdc70a51b2e0bf963474925. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USWB19600532.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc63f789e0d53facabb5d7c081190a72f273b95e732335e24084a9970b9c3b42a. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USWB19600533.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95dda187154040357d716c61a68628af87cf14b936e233e5f8dc96ef45de6db9. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USWB19600542.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2084f3a126658e5c87e223dfd0c6d9b9df04bc2c78209e3e3a9905a83c1bbeb. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USWB19600538.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3b3bb50fd88f3600af92f48a543b2dca330f9ccd3c171b645f4029910444e95. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USWB19600540.
Millennium (Music from the Original TV Series)
20,000 Leagues Under the Sea (Original Television Soundtrack)
Father Joe (X-Files: I Want To Believe OST)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38df0c81d87585e4dbbe78c01f338857810b8526e321c640b49f0cbc081dae4b. Chain 2 (Bitcoin): anchored in block 959084 (2026-07-22T00:50:00Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USFM90800117.
Home Again (X-Files: I Want To Believe OST)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fbe3afa894a49b79b8eb4bbacaa53c10d7f92684c4b99ab975d75639277b873. Chain 2 (Bitcoin): anchored in block 958756 (2026-07-19T18:56:15Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USFM90800133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2056ffd08ed3952eb059c65afb99e77202119bdacf052ea6cacb6214972a468. Chain 2 (Bitcoin): anchored in block 958493 (2026-07-18T04:34:53Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBPYR0700513.
Smallville (Score from the Complete Series)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a4640bd1d3758a07568c9c6cab9272360ce748f7f10f8a10eeb90c857485954. Chain 2 (Bitcoin): anchored in block 958573 (2026-07-18T15:49:54Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USNLR1100072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae78bef0a2b174a004d4323a26d9d628ffa1791b812b0f64284ebd85aee587a9. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USNLR1100092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ba3d900df0170fae96b1430c2a0323063ebd809de4f0b0437f86e1760e9e4b1. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T02:22:58Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USNLR1100099.
Hart to Hart - Theme from the TV Series (feat. Dominik Hauser)
Jake Speed - Original Motion Picture Soundtrack
Private Fears in Public Places - Original Motion Picture Soundtrack
Night Sins (Original Soundtrack from the Television Miniseries)
The Snow Files - the Film Music of Mark Snow
La Femme Nikita - Music From The Television Series
La Femme Nikita (Main Theme) (Club Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe24d99d04a0e9e296e0a91de0a90ea75f0f05f0ffc168120fcd440344c073b45. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMT281200346.
Hart to Hart (Theme from the Television Series)
Vietnam War Story (Theme from the HBO TV series)
Coffret vous n'avez encore rien vu + les herbes folles
Conundrum (Original Soundtrack Recording)
Millennium (Original Soundtrack from the Television Series)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69c9e0d15276c5815925650847219c516316fc266082590aba9e77f7dcb48a26. Chain 2 (Bitcoin): anchored in block 958202 (2026-07-15T21:23:21Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USFM91700110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd6ba2d2fa7d1802d00c31fa9592948ef79f720c4d53dd1d306d633a9e3bfb55. Chain 2 (Bitcoin): anchored in block 958770 (2026-07-19T19:26:13Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USFM91700136.
The New Mutants (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4e6983942f0ec4e96982092cbdacf3e027a1553aad656560aaa8f9fc81e7bcb. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USHR12039865.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd87c78b7291e82c3bb3b390038541c134c952a71518f6e27901e7437be788688. Chain 2 (Bitcoin): anchored in block 959088 (2026-07-22T02:14:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USHR12039892.
Pasadena (Music from the Television Series)
Private Fears In Public Places (Coeurs): Original Motion Picture Soundtrack
Jake Speed (Original Motion Picture Soundtrack)