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 0xa2aebd0cd5a48ab9725972e117dc0fbef5bfb665d97b0914dbdb6e048d1b4a55. 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/0f1ed856-c4ec-403d-86e9-b710c967c8fe.json and https://artists.proofprofile.net/proofs/artist/0f1ed856-c4ec-403d-86e9-b710c967c8fe.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 0xaf7634acf76c4ee9b2000f853f04f03cb86873583d2fbda5bc8092f611e14c0e. Chain 2 (Bitcoin): anchored in block 957805 (2026-07-13T04:34:37Z), 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/TCABM1354477.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf74b6e39798d0b662f3301181022387555a7fbf4369235fda5dc0cee37111f6c. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/FR10S1901033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a10f483068cd10ed756a8b050bec73a8a07ef373d94126857d3d9aca55b9e06. 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/FR10S1901037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96855575ab14b4bc3ff57d2a0d745c743e2cc7f6d1bc35336a7f388078908b43. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/FR10S1941004.
Tranquilo & Tropical (Collectors Edition)
Tranquilo & Tropical - Collectors Edition
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ebcd9f973d4f73360591ce016464c4191029cc01eb6a28b9cedc82947c62ce1. 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/FR2X41916902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45b9bd81c966f3fca9ff23175ef8a485ffa88a65a279ec3dcba1aa7f9a3442f7. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QZHZ32049951.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa17e6d2e6fbac2ccb072ccd1ba6c42faa5b23175bb78cf5d8467576f750687e8. 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/FR59R2109155.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4479421eb9a488379d64ccbcce1be91b3616c53e2999fc4552e935f52babe80. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/FRX202102299.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d275ec57a7292063134983be41b6a9d8ba183f658b2a6e2c0d103b54e832562. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/FRX282134298.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e596b0a0fc9906481b5aebec1098f9ce62f7a53cbd536764e085589f2ce3fbb. Chain 2 (Bitcoin): anchored in block 957867 (2026-07-13T14:55:20Z), 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/FRX452232100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfafec29980f0959d3a855824930032c748c2f0620eca59d8112ce70b5d5391f9. Chain 2 (Bitcoin): anchored in block 958493 (2026-07-18T04:34:53Z), 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/FRX872073649.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8342c58cd01b51a574ad2319e1a87ae9209b51b82fbe044dc3fb9268fdd92f54. Chain 2 (Bitcoin): anchored in block 958501 (2026-07-18T05:33:04Z), 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/DGA052069645.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f32b8ce15918ddda79cc2e14f64a26e409e2da9ac8f7ba6a753f2706d45ee7d. 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/FRX452145082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4479421eb9a488379d64ccbcce1be91b3616c53e2999fc4552e935f52babe80. Chain 2 (Bitcoin): anchored in block 958617 (2026-07-18T22:07:13Z), 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/FRX202102299.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x419c3d6429686bbeb26b412c909690c3857bedf14c03e91a3e37413b16b96499. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/FRX872273969.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96855575ab14b4bc3ff57d2a0d745c743e2cc7f6d1bc35336a7f388078908b43. 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/FR10S1941004.
Naco Es Chido - la Verdadera Historia de Botellita de Jerez-
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50de4fd2eeb6ca6f2b6fc15c40623f1c4f13ea5e81315bad3e64a84a4decc943. 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/MXF601200998.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc99f89e2cc80e2b604cff739291465474cde89203dfa9fed5870f824e63c3dd4. 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/DEUD91668362.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f93af4bd51e5aa3880c1c7c5a6ffa3e739b3c5a549bb34a4fb0634ab14e2147. 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/QZ5AB1862732.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b2a544dc36979f98111f87a40ac62f0168b8cd59bf13d1634825f483e074bae. 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/FR96X2284781.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b2a544dc36979f98111f87a40ac62f0168b8cd59bf13d1634825f483e074bae. 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/FR96X2284781.