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 0xcfced250b0180f1b8500a8785a62996b842a2b49d36240366a7d3aff277e7d7d. Chain 2 (Bitcoin): anchored in block 953648 (2026-06-14T15:20:52Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/47cf422e-16f4-4187-91b5-559b0ed75435.json and https://artists.proofprofile.net/proofs/artist/47cf422e-16f4-4187-91b5-559b0ed75435.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 0x8c9fca517f542cc118736e59db06d173c6ed0585529f27c63ba7d9959ba3cd56. 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/GBBYB1502049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2df1ccd661c9283301574f9b25f8c11cee3d06c10e19dfa1a4f2477243d2895a. 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/GBBYB1401852.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86e54bfd6885dd2db8a255b491a1d483efd11fc17c33da6fbdd1f0be7f5d7099. 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/GBBYB2003679.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c6563a3541444d7e7cc0cd0868ee4f952d15f62203464177ac7520b560a39f0. 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/GBBYB2003685.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe19a7f3c1e50653cab28e1f2eb093244634fa226b120054621637df4b30ee513. 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/GBBYB2003687.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07594f138e3ecbf01d83273b0a408e1098ad100a2a279cb1ef2c356dfc0aeb0c. Chain 2 (Bitcoin): anchored in block 960266 (2026-07-30T14:44:50Z), 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/GBBYB2003680.
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 0xfbc5ef134442366099825be15f2973c0a5becba035026ac7e0079dddb12acf48. 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/GBBYB2003681.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbde91522dca4994989391d24f7be2f60bfc74d84e3dee316f6a9291c29f6af11. 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/GBBYB2003682.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8ea0ec91231c34e0e8087ce403bfea962aaae94b74151a74c6dfefa96ff4d3c. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/GBBYB2003683.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x515e825829da43afa309458ddad4da5df651dc488986426ad55177041eeded95. 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/GBBYB2003684.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x012727e1189ea1b73b7cb3cf5d8affd5801dc349193a0c7a5050081d65c51b12. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/GBBYB2003686.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7e08adadeeaaf4bddb19eab567dffca2f7e80436f71a7e55399f09b811c0639. 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/GBBYB1201039.
Here Today and Gone Tomorrow - Champa Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce562cd467ece73d4953c4a7d2ef96063e9c5f92f785d4de3351a3bb7ceb4169. 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/GBBYB1201092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e6ce9242d16618eff02a9d809070ac253241eaf916aa8dbf525ca9505a2af48. 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/GBBYB2403973.
We Are Not Here - Serenity Flux & Dj Bim Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b08c21442bffebf0c296d038917f05bba27d3953239f203ca1ae1191990fb48. 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/GBBYB2403974.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8eb65a8b39b837cacec103ff92645c90f3c6176a9d72a93b61b89cb799f64f1c. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/GBBYB2303915.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3408bb1718100aab2c412dbbf1f8858b5d135f0593aa1c68b0fa7221a941596f. Chain 2 (Bitcoin): anchored in block 960370 (2026-07-31T08:38:45Z), 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/GBBYB2303916.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20596b8ac706c76653c2f35e0154f12b11634735fa3cba1aa384194d0bc7f77b. 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/GBBYB2203844.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f1c07a6805cb8d322f7b20786502ed67e55532b2edb4ee7be458ea9763cbd1c. Chain 2 (Bitcoin): anchored in block 960200 (2026-07-30T02:37:10Z), 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/GBBYB2203843.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9502d99d94df191df39e4e322899f85bfa6c695c267185275ae189313fd56165. 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/DELK11800136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefd90157cc3c7afdd6163080d419c337eccae9a8f286973cfb0501e594258669. 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/DELK11800137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x118bf42058bb2c6e8ac4279d1fb1c859bf82804bfe1e849fb2c06c89658c46e5. 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/BEY921517566.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa14cf7806fdb8eea594e2b923b70212f9a2ba097898ca2acda0caa65fc4cfc31. Chain 2 (Bitcoin): anchored in block 957041 (2026-07-07T13:25:45Z), 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/BEY921517567.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc76852f7bfc66fb9f5787d5712c5d6661588c5c61a4039df4b4930c3573daf83. 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/GBBYB1602602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3afa716af0491a15581936c7ea731f414d8a33fbd8401d45c8a5c31450a7e02f. 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/GBBYB1602603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeab123b2bd4e8d473daa7b236d740490b9559ebb6b9a333589a3ed7e84c4e4fa. 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/DELK11400056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9fbf4aa44c288a2f94e667f0752abbc040f1f3ae945f2eb38f523e2113c8f02. 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/GBBYB2103780.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7047b0c0d9d47a6ed8b14a7aa295f3dc3d7059269087736859fee994559571aa. 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/GBBYB1903407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6df31ee6375176c54d96024db6089384d9a5945633c090ff70f05a9dfddf07d. 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/GBBYB1501952.