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 0x81b4730f652c0ac62d67c1b604408d7271dc5f81aa5e632aa9bfb14574a0105a. 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/81747fa4-1b5d-4fbb-ba70-83fc40c0050b.json and https://artists.proofprofile.net/proofs/artist/81747fa4-1b5d-4fbb-ba70-83fc40c0050b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Vallenato Romántico Interpretado En Arpa
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 0xfa4730b13a75c0345feb94c900a2a577672d56af2f16de33f3079ab4fcfa47a8. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/USHM92244387.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x550951d3ccf3ee348c1928bbb29008d7d3a4f81cf9a2903cdc74857494a8a9a1. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/USHM92244388.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25d800143ed4324eba5afcf4490d285da38b08aada77e32ffefbb1ad170020bd. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/USHM92244391.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x660b88d999e4145252702fb2cfcf646c16307aa0d5e3d082eb78c195e4ef3d9f. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T22:03:37Z), 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/USHM92244394.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x141c9eb56bb01d6c6d86ae9a6b4b931a1438ab7de9a6c9be86cfb09700c120f1. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/USHM92244395.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe147f20cef45e273e7b661877d82d7f4fc4998815ccdc52b9b44a0ea85495b2a. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T14:24:08Z), 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/USHM92240502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a6a3fedd1869a7b4c76217246faf27b163bb53eefe75979c4736226d1d0c3af. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/USHM92240504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5a46b1fe40fe9edd7c07f7ee9c3f0bf76464749364967e578c8c5e91cecea34. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/USHM92240506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf013ab7975a295b2342944eec9d2e3c1767079e341c9adb4f064d0b864ceceea. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T07:48:35Z), 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/USHM92240510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c008482a96ff84cc82d6f4683042fc4cb5caab3b2fea2cfc76aec79c4eb5936. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/USCGJ1807523.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c7cd1f3bc4b489c68b5959fa7dd32975cc5382084510282adc884c6b61ca1f1. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), 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/USCGJ1807532.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e76e7023bd0d626b31a69bceb337dbab93b4ce0aff4bc6b31f2922aecc6a57c. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/USCGJ1807537.
Alegremente Triste... Mis Canciones, Vol. 7
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5026226b25f7ca101617dece915e4439b9523b823a8cb9e16b84fcaead97c1a. Chain 2 (Bitcoin): anchored in block 958975 (2026-07-21T08:51:27Z), 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/USHM82260962.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa88f1742fbda2b74e0108c8d0fc717303b1cfadd9cef9880365ff60011abe34d. Chain 2 (Bitcoin): anchored in block 956862 (2026-07-06T02:10:22Z), 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/USHM82260963.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05bdc7ae3441321df4b7c8c6e1eb48404ce2f2136c7606e2969d3f85de59aaeb. Chain 2 (Bitcoin): anchored in block 958860 (2026-07-20T09:58:28Z), 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/USHM82260966.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedcc7d20cf64ea5249ea8a185dc268ee60cca4fa00a9da9f00d25247e6c09872. Chain 2 (Bitcoin): anchored in block 958798 (2026-07-20T02:07:02Z), 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/USHM82260967.