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 0x577e2c9cde6ac2df7f9529684781b0651a0a1e7ee540cb020e62831eaebc3312. 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/b6b96eaf-f5b7-49bd-8a33-7000b8019924.json and https://artists.proofprofile.net/proofs/artist/b6b96eaf-f5b7-49bd-8a33-7000b8019924.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 0xbb126eecdedc471f3f45ffafb0669a1fb466d3c1a4b769edb92f36e3f6a15b6c. 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/GBKQU2163030.
Jack Had A Groove (Maurizio Basilotta & MF Productions Remix)
Jack Had A Groove - Maurizio Basilotta, MF Productions Remix Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99a403b9d87586d666edf10d50210ebd905e6220801112241ad480361f0787c2. 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/CA7C62401183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82e91d269db41389ef9c84c6bda9cbcda77c7c87963dc2aa9b0ebc310f913722. 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/GBRBN2400043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b806be04770ba43fee9e5d562d33ec9ce157567949d0b651ffa63fb529d148c. 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/ITX4M2400068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b2946bba24dba0da63cfeaadfee08d28b67f064cf3cb773811375ea1ddcd537. 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/GBRBN2400023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7498b02da4f0df30e9301797adad6ace16cc28512847e5293dd186c67e33934. 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/NLX4M2400486.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3453907865b6f0b423f2aafcd622c5a3e5f0e8d929fc870b401ad3961fa696a0. 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/GBRBN2400020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f0e1408d94b1180c0d854badc2f475141fce8fdefff354c7a3398477c9ee0cf. Chain 2 (Bitcoin): anchored in block 960161 (2026-07-29T22:51:26Z), 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/GBRBN2400021.
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 0xf0151781e77d489c20c9e7cd430db3eb4824456cafee68e68d2ff7f8169fae33. 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/CA7C62401137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05da06b55caa8b76668503d4f7c19184eb2a2217aad48f82a585c1ac59b5da26. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/GBKQU2405965.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28cd20158e673fff9de92abb348c9b6cd763697c1f9e110df26c280fd94fd280. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/DEH742405788.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x409e1d879f30af1f45ad0ed78d36a37ed56d79ad68ada74fcca423358b67422e. 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/QM4TW2412686.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29121ed4ea90ef4db49b0bebab1c2a7ca7d818342e3aad884cca5433f21baa56. 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/DEH742401072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa089255ededc8e6104192f84a195032b0c98cd9f11cb6a768ea12e951b62972e. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/CA7C62401116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff88b2d1717e60dde30b5184a1fe8e574bb89cc54f8bfe25721c5559fd93a21d. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/DEH742334074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b52c49339250f4f68bc1ceb4c5b9eb8191b721d05c0176ebd2f3f87bddb4555. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/GBRBN2200087.
Another Star - Disko Junkie Extended Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a907db4d5a0042e5fc946a0b915c9b697f9f263f3a5ec481ccc35858a9cbc44. 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/GBRBN2200085.