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 0x36b7e23e4f1ca1c6a0117b1fd342500bd0a81856dd9f0f989353879767ca4384. 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/f722a8d9-df57-4fb2-a5b7-c6e7179cafb2.json and https://artists.proofprofile.net/proofs/artist/f722a8d9-df57-4fb2-a5b7-c6e7179cafb2.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Night of the Huntsman (Original Motion Picture Soundtrack)
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 0x2c50093a7a9a622bdb3329dcbafca571f1be0f9ed9d9d1b9fc3ce4340e8c53b6. 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/USCGJ2347088.
Orange Flavored Love (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97ce2ba19bff158ae45864e52caae8a9f3b60c1c4af08bf47eb7d5e65af4a339. Chain 2 (Bitcoin): anchored in block 959094 (2026-07-22T03:33:16Z), 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/USHM82318209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcac9c8ec36fa8f768d11b15a675be5e04ccc7c0f21c05ee28e7a47ed66e52b58. Chain 2 (Bitcoin): anchored in block 958917 (2026-07-20T17:53:56Z), 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/USHM82318211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0d4669d87ae8807b2f04491c2f564f933011eb0b18bbb9767da8d2a528099f2. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/USHM82318212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9854e30dbf6ea9c21be35a93aaa5a9a96ce566ebf0ba6808f7c98e8c2838c148. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/USHM82318213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84cdaa1cce146b52d00668e6147686a4fcf4e9e851b5038737a0d69aa586d444. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/USHM82318218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f911c83d45d003954760f3f496e43a239df8ca6036ca2161da5b213e8679f93. 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/USHM82318220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c5bc955fafb68008a06454db53a19f6df6f994e85a166e4b826bf2998d6b3f3. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-15T21:24:46Z), 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/USHM82318224.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef26bec117098becad2a980c04222b64234754c1bec18bc61e4586721788a0fc. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/USHM82318225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e973fccaad43313aef3f931e864ca18c3db485d4593f4a997d40c7fe67c06ca. Chain 2 (Bitcoin): anchored in block 957544 (2026-07-11T09:08:48Z), 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/USHM82318226.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb1aaff29008509b43f9abc7bd8606d104eb24bc24d45e5007be2756873ef989. Chain 2 (Bitcoin): anchored in block 958384 (2026-07-17T08:27:02Z), 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/USHM82318227.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cd7213bbee0d97d3b984148b0ed6b52070ba52923db795dd761ce15cdc7aa99. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/USL4Q2329513.
Piano Suite from “Orange Flavored Love”: V. I Was Six Years Old
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2e6f1fc82dbf0a637f13ab66ea31ef50e923d5fb0c5e57a19c067f9c90cc94f. Chain 2 (Bitcoin): anchored in block 959024 (2026-07-21T15:31:18Z), 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/USL4Q2329520.
International Escapades (Original Soundtrack Suites)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56810321af8927c64ed086ecf2ad7d49bc7e05c5e2c5575a1091e4127d5b9c5b. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T16:14:34Z), 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/USX9P2350492.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3f795b15567b1745e5b901c8cb01a1bc683820a0572de7509d24fa51a1334ac. 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/USX9P2350497.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9cbaaab7078dd319a19cfd919dcd896f1866fd0e8b1f836532e5ac2971270ee. Chain 2 (Bitcoin): anchored in block 959031 (2026-07-21T16:15:11Z), 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/USX9P2350498.
The Men's Project: IV. The Professor and the Poet
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce97d20f49ba4fdb9d3ec4f8b8c9515dbeeb2f647588ec319adeab984f1553e9. 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/USX9P2350503.
Powdered Nose (Original Motion Picture Soundtrack)
The Secrets of Graziella (Bande Originale Inspirée Du Livre)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25979f732e510fdd122381d7263fc64b0c5f416515ef8671e036107722a4b161. 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/USHM82445142.
Burgemeestersmoord (Originele Soundtrack van de Film)
Omphalos (Music from the Original Ballet)
Only in Moonlight (Original Motion Picture Soundtrack)
The Nettle Man (Original Motion Picture Soundtrack)
As the Crow Flies (Original Documentary Soundtrack)
Fatum (Original Motion Picture Soundtrack)