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 0x40b905bc5193e3488cd5fe8e9d2c0bd0febfa0339e19aa46947bc4f4704e6e49. 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/a317ca29-19f8-40c4-afc2-7141b5c80030.json and https://artists.proofprofile.net/proofs/artist/a317ca29-19f8-40c4-afc2-7141b5c80030.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Por Ella / Sé Que Te Amaré / Pedazo de Luna / Porqué Te Vás
Pasito Tun Tun / Enfermera / Ojitos Mentirosos / Te Espero en el Cielo
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 0x7191682d5e2bf0d9dc4a955c5d007142593c4e125ab5490d17c5b23d2aa51a96. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T14:11:41Z), 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/QZW9N2267543.
Colegiala / Pedacito de Mi Vida / El Teléfono / La Computadora
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6406141e947d4160f193101e99a91bc0b8ca272039d8c058fdec6f38e26c4125. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/QZGLM2366121.
Echarme al Olvido / Como Te Voy a Olvidar
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbeaa03dba2c9d0ab724fee71227e24141412c0599a7e93d301c20e5e053e2936. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T14:43:10Z), 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/QZNJV2383783.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd16533d2d38055a5c0a2fc1d412ffc55af0deb54efdbae783188f5faf294f14c. Chain 2 (Bitcoin): anchored in block 957771 (2026-07-12T23:27:28Z), 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/QZNJV2383955.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46d8e99af42742014cda92011f53756e9265d4a9b35baad95905dcbd47643c40. Chain 2 (Bitcoin): anchored in block 958838 (2026-07-20T07:01:21Z), 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/QZTVM2389577.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc84a41ae5c45ff696f2a18de3f11a6026ac0c1aece820de634b2a58f82013cb4. 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/QZGLM2428640.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00007330aae9409480530abf9ce70e5696fd523dc8d18656e6f6f60d7151e08f. 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/QZNJX2427007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71c93717de74914effabb76108814c2c117e8b7e14728c1ab2793a7641f32097. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T17:46:50Z), 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/QZTPX2434176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56420dbe4be41bedb6c98ab4f8ef5613ef71adc05ba44b0283179507a9c3005e. Chain 2 (Bitcoin): anchored in block 958325 (2026-07-16T23:40:35Z), 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/QZW9K2470317.
La Mitad de Mi Vida / Muchacho Provinciano
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb011954502e5bce33b1dbb54f44d94b6ef5318860c15103507e6c84cc4aa7651. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T22:17:00Z), 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/QZNJY2502821.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10a03c13693ee7bd6ca4f8c5786f2c290ac5a85a7384529a59933b445fafbbc0. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/QZTVM2569946.