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 0x3736a31857c8f675aacb82c88f9fc62225a096c2007c326ac020efcffb132298. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9cde76cf-340e-433c-bc47-71f9a1fd03ee.json and https://artists.proofprofile.net/proofs/artist/9cde76cf-340e-433c-bc47-71f9a1fd03ee.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Down Like the River (Yvvan Back Remixes)
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 0x63adcdf81b1389156ea3d8d803af03a829329efb601c3362dc2c3c18bec94d7f. 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/CH3131814125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd438106c46b3c63036f7621440c04b54e8f9f8ce8924e4be9ea153336cc23f64. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/CH3131814126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a739d9d86e3f795043958a04bf0853c41a25da0db4dbc83f341ba2b606d8fd4. 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/NLZ541700313.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b3dabdf8b4990d88e7d7b114e9e08bfd504dbb0a4af4e499578406e5f7b9aff. 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/CH3131613296.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa033c7d80df2489bec1ef7199e44752efd0205e149edd6b971a2f11c39bcc1f2. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/CH3131613295.
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 0xd345bcbb3fe0197cd2afe2b81a2e3d4f66d0f06fbe36e16639dcf8d56398724e. 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/CH3131613041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd0fc377c9d07354c4b257d20474e68a7320100a5b44be06e04a822a5b5d94f1. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/CH3131613025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0e8ec9c116ce7839237b6e5430f0403193a40a99c5c206ae55bb18d98310ee2. 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/CH3131613026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a62aa3a919e23e28db7afb1249d5f8dc5c642f8e1b95ed6b4af2f895deabeb4. Chain 2 (Bitcoin): anchored in block 960422 (2026-07-31T15:27:29Z), 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/CH3131613027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x712cfff1596bebafbd667966a0b9c17f3e8fd11ef88638eb150fe0d8efb43d77. 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/CH3131512829.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6447b164be84a9b5fcd0404bbbd150df6fc7330028bf0f1ce14e584eeeab39e. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/CH3131512827.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecda1f8b7c797d7d0345146983fc9df0312ccaafad429232850ecfc1b83d803d. 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/NLZ541500671.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7821b2d6f59c82b91185d4379adedd2b51bbe354ab57a28ab285a9caf67f3e68. 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/CH3131500096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x854c4aa94c7bf894748c9538dbacfd8e2d183913d34491aee5c714a92fff2545. 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/CH3131500010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ce6ac728b5effc3b1cc3fe710ed1332ec0a1545e33229c7ce9ed72871aa7305. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/CH3131500009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fdd4c7447c95099849d7c6c242ab40766abe5275810d95c359ce8619719c2f1. 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/CH3131512773.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61609a7d36a8d60bd3063d99c21e9d269245988ba2f3438dadec1e96c69c18bc. Chain 2 (Bitcoin): anchored in block 960113 (2026-07-29T13:38:16Z), 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/CH3131512774.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d5af1796f1f5ce2a8a2c93d0a1cf90051f8bf447218f1b0e6805bd6ba3f10fc. 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/AUON21456800.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x330ce6579ed0d2f4ea85842e114e57105e5461e06a5da4ecb6cb726261124a3d. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/CH3131400138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfba70de2d521d157e372e897eca51c808dea988c4fe97f3f040cea3a01673aa2. 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/GBJAJ1202250.
Mama Thresl, Vol.1 - Urban Soul meets the Alps (Compiled by Paul Lomax)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa93c029d8307a5200d0af9581207cf1cd7cd73cb6c61954704751ed20a133680. 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/CH3131613040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf26d104ce889357d4bd650890e0b90cab802bd0064c534f6c1b97ddd406e81ee. Chain 2 (Bitcoin): anchored in block 960241 (2026-07-30T09:58:01Z), 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/CH3131512405.