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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x312d65a1200240c0d5cda13a5ef1db4a74e0d9dcef4967e2da7d752995eae8c5. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/54fa4a5c-7542-44a4-b9d6-2c80f3278acb.json and https://artists.proofprofile.net/proofs/artist/54fa4a5c-7542-44a4-b9d6-2c80f3278acb.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c672912dd6a5eddabbc36a6159e37a83d6360c90d29b7c120c34ea59e468abc. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T10:07:16Z), 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/GBSCL1613040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c672912dd6a5eddabbc36a6159e37a83d6360c90d29b7c120c34ea59e468abc. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T08:50:26Z), 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/GBSCL1613040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a0f928bae2048569a9c2c87b9f30b02e1eb79edf38b6ba722ffa98aede50fa9. 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/UK2QB0000177.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x792749e9cc8a4a388c08d2a8d51824eefc6b9548e82dbbde31b7b48ef1d6c5ca. 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/GBSCL1735131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf51936dd7b6a13e1bd5ba252884b64986561098b72fbda2a776997297290db74. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/GBJAJ1900817.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04f13f9c651733b826720cc895486d3e9423642a737a3814de958b2d30ea0283. 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/GBJAJ1900818.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb07039e811f8651919dbf720149eef4842bdbe0ca27f5f10c8f76e3069bf0db. Chain 2 (Bitcoin): anchored in block 957064 (2026-07-07T16:43:08Z), 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/GBJAJ1900819.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x776848f0f92da8427703f45ecca84e0a9f9527230973143ae4023a961f083530. 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/GBJAJ1900820.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66f9bd3a0a46ecbf1815b5e4a10d2f96b3d93168280cb7a808ac3213528d39a6. 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/GBJAJ1900821.
Stingray - Vincenzo D'amico Extended Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8212329a7436f6e1dc2e5ed55268a55f93576c07acf60561ee610db44e20517. Chain 2 (Bitcoin): anchored in block 960459 (2026-07-31T20:22:46Z), 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/GBJAJ1900822.
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
Colourblind - Max Chapman & George Smeddles Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72cec6d95ba379fb21a73ca3814be459204e6539872f3441583127b089f45600. 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/GBSCL1935118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87b2bec285e25fcc893b1c4ab438ea2cf45a2365cbc73f0ae555866092c83654. Chain 2 (Bitcoin): anchored in block 958793 (2026-07-20T01:35:08Z), 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/GBJAJ2002731.
Love Affair (feat. Georgia Cécile) - [Big Miz Remix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf46d05ac2e0bb7d6f89d3d231ecf2d3f3ef55d95ac7e8104909a6e07d572623f. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/USNRS2141029.
Love Wars (Michael Gray Edit - Extended)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a849bdd8991ef6265b14683f84a100c389073e9f3169e0d6a8373b59e206981. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T15:07:00Z), 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/GBHAD2102621.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a962f522116f3d968889ae12beb94345641fcb9d4c98b0feee07f1353fca1dd. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/FR2X42294104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba496ddfd14ff1a665d56f812628744ab53d33082704ecd5f54fd3fd8c9171ec. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T12:01:59Z), 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/GBSCL2435099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9705104a710c0a256e720e6fa5c1756037d1d29e3ba92eb875af52d955ace347. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/GBSCL2535012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92def98cfaf5d632f2ba43e0f075cb2aeb10ea9fe894a409f955ffba0ce2c870. 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/GBSCL2535014.
House, Tech House, Techno Vol. 2 (Mixed)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf07b82f576d154ad986d638992bbaa31570171484e0dce46047d2f9eba741b1d. 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/GBJAJ1800942.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cf080f52914288ce0682718d8af2223e34893c37a33c311e154421312080720. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/GB9UU2400040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5904fb826cb354c0ea17af35f2e4bef274b0838f6faa7760bae7c20bf84f38a1. Chain 2 (Bitcoin): anchored in block 960481 (2026-07-31T23:51:35Z), 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/GB9UU2400041.
Colourblind (feat. Jem Cooke) - [Vocal Mix] [Mixed]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4949dd648fe92fd7529ed2b5a84b7b99b395ad04a4a3915367a78b2c1223c037. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/GBHFW1900130.