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 0xf5d2b899e5a41b22bdde61c0f9797ab14bcadb6520fca909ab078652ed8dede2. Chain 2 (Bitcoin): anchored in block 953954 (2026-06-16T14:18:37Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/24ae4ef5-c368-458d-bafd-340fda91aca7.json and https://artists.proofprofile.net/proofs/artist/24ae4ef5-c368-458d-bafd-340fda91aca7.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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 0x7385c1633bcfa946b6d79477a0c9e8c7a690f9805b79c7f96ad7afddb7c3617b. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/DEDU21200046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ad155f7428dc9c3ebb51965b9081eab24554d717f4976b2cf2289e3da5b6ab3. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/DEDU21200075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f97672e4ae24987757c840ec3252ba9479523d311114432c1300373dd3c3d16. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/DEDU21200063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81cc9979df095fff26c78c9456753db35ef6a2700f4f5dc69b83e2441a680781. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/DEDU21200076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bbee5275e689f02a4f47c375aea35f7dec8902a176b4a4551275b18d086a3e0. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/DEDU21200079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddcb97ac95f3b4a0b1a66defaf910c72bf1e58eff9bcb0c181d169e869459b92. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/DEDU21000023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5870425f62e8716c8792d0e7d21e3f02444b7ca9b43b8650155e6845cdddb85b. Chain 2 (Bitcoin): anchored in block 960222 (2026-07-30T07:48:45Z), 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/DEDU21000083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec9237c5239da1707c2a3b43463f3ae91773792146ac7a3496d7f7e37325d105. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/FR08V0900010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf147f30ebfc94c5bc0dcb74d6d350ccc237d7f7ac1212c7796add587e05e3ef. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/GB5LN1000044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x765299c911b5b8191705ccfcbe9ae95c6669fcc696405dade8d7af71e15cead3. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/AUMH31000057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4a19bdea68574f269bcc99337c75c121d0e5e91356196e69949650d3b56a57a. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/DEDU21000067.
The Geeks Were Right - Boys Noize vs D.I.M. Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x380538cbbb43f48f1d9324c3dd6354de241b6295b89e49fe894a95f7f853b954. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/DEDU20800117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90698c729b3881e2d008bd439b955ae221cf56c837fdc175c106d7304627d9ed. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/DEDU20600023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbe4ac2edf3280a4edd28545f5efdd69891152b9aaeb7eca1421428f7c44a079. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/FR6Z31100013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x978e0ce065b5f22221916f51081d929acda4172916cd35c2e006a15323af30c8. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/DEDU20900007.
Machine in the Ghost - Djedjotronic Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb111144d8c747c99d1307012712b2334bb7d220ec52426d67db431b4fd0b36ab. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/DEDU20900008.
Battlehymn for Children - Tensnake Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5dabf20e13b91bedfc994c6d33cca2865fa466580ca39b94c8e9970eb9333274. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/DEDU20900009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfeee93cf3fd15aa614a2b61eef6077419ad01209d6f061e7f8c7d9c0edc8d79c. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/DEDU20900010.
Mirror Error - Das Glow Remix Boys Noize Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa224a4a16adc0c29e901b89dba1c945f1020f326d8e0f7e3dc38f7483e786ad9. Chain 2 (Bitcoin): anchored in block 960456 (2026-07-31T19:53:57Z), 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/DEDU20900011.
Battlehymn for Children - Tensnake Dub Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5599b5201b7668ebfa27d0ae2a531b00ac54ef1ef131a93e6d9ed99af9231ee. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/DEDU20900012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fda588b0a5a916a170be4e896ba3e6332df1fb9d641d380c34e087a2f882e53. Chain 2 (Bitcoin): anchored in block 960340 (2026-07-31T03:15:04Z), 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/DEDU21700021.
The Flavour, The Vibe Vol. 3 (The Full Versions Part 1)
The Flavour, The Vibe - Vol. 3 (Unmixed Edits) [Mixed and Compiled By StoneBridge]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6185ce39d0e53d975743c81cf0d0d278b8d19c224f1f5d925bae70e4f4ef495. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/GBLEA0900132.
Thank You For The Jazz - Stonebridge Rework
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2eb0f60dee3683a9de149ec247cf6b12fc6b701f7cbd78bb6a83b26a3a43c08. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/NLP430800125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73f4dc1e903c987929a1b73862e9e2a241648f6867d8bd42faa38ae2492bfde0. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/ITC630800114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97c6ac268b4aeec35f613626a95a3b14c29583c662e4f244fd1b9df187662e6b. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/FRODX0801240.