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 0x4591d880681ce84a6606cfae19af8043c22ae9aa1d0d30782d8dc6ea7bcc9fef. 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/62875a2e-217f-4b40-b758-a63be98fed4d.json and https://artists.proofprofile.net/proofs/artist/62875a2e-217f-4b40-b758-a63be98fed4d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Grillo Nuñez y los Reyes del Cuarteto, Vol. 1
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 0x5cbdd42004f76400e4ababdd28f3d34c5f084eb37c0f9962762c4d6093bd4a62. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/USA371203453.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb80717b31260f69e2dac17cc940e230662c1037947fa8c14b699469072511535. Chain 2 (Bitcoin): anchored in block 958656 (2026-07-19T04:04:08Z), 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/USA371203454.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaeff3fad9bb365e7d46d094136f132f33fe124d8efdca7a3c90d70d374a02133. 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/USA371203458.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x779a07fb821750bd54f666971bebb48432111de986c688cc0f9cff9d6b95f9e2. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T09:16:54Z), 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/USA371203459.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd961800175a585efa3d12c800f9497d4018a0b89b842d381c74eb905411aa230. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T23:08:19Z), 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/ESA011926459.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x609c3d711b6535f40f38c832bf40485b9786f9a7dce27501717cab6b745bb9cd. Chain 2 (Bitcoin): anchored in block 958876 (2026-07-20T12:15:48Z), 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/ESA011926461.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b0c82a6a42cf2cbbdf03671b9263dc55788db2a9c5e8929ef12a4c13ec830b1. 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/ESA011926462.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x543307b0e22c19fc590891bee8cd0f5985d4f380180a526b8b017e82e33199ab. Chain 2 (Bitcoin): anchored in block 958349 (2026-07-17T02:28:59Z), 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/ESA011926463.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ea894121c6d76969c6e7e475f0efbe72fca81a0d0a491206bc12cfc200956a8. 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/ARF061401095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02f0fccefe6e347b955332677388eeec749628573b965870797b28ec45f3bd56. Chain 2 (Bitcoin): anchored in block 958742 (2026-07-19T16:18:05Z), 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/ARF061401096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cf29814954dbe064fc87685f777e61fe55ec02df713aa4de58fe9d5cf2e477b. 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/ARF061401097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae9135bb590c034f872e64b7d9e330fdb0f3bd7d942ae99e883e16132deec448. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/ARF061401098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7298ab66a9328956f51ffbda854c1e4097372c08bf24c575a32fe57d76a711b0. Chain 2 (Bitcoin): anchored in block 958711 (2026-07-19T09:26:32Z), 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/ARF061401100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9d0cb21a461718e5526bbadf9ddedbeb886465b049b1178529f1b23d54190ae. 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/AR8CO1600002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe50c565eb1fb65430d8ac339cab3af704bf69e9976b7a402bda15747e1fc462f. 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/ARF061800295.
Aparentemente / Piel de Azúcar (En Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x804c63d0b7011e362ab739ed4fbb1f2d38eee293d44ebf2d17a6291068c6c27f. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T13:00:05Z), 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/USANG2020700.
Homenaje a Rodrigo (Aprendiz - Yerba Mala)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4b8c617621c12cd9797d7adb52eb157308b72bd28b5528dae33b21b46775aea. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-16T01:55:04Z), 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/AR8C02000001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb3b62d016eddd3df4eefe57156c9e8b6845bf330fba1a30c71bb9c24ab41771. Chain 2 (Bitcoin): anchored in block 958935 (2026-07-20T22:08:19Z), 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/ARF062100140.
A Bailar Que Se Acaba El Mundo - Carita Pecosa, La Chiva de Panchito, A La Orilla del Mar, Eres Justo Justo, Me Aflojo Todo, Que Llamen Los Bomberos, La Cajita Angelical, Que te pasa pajaritoCuidado con la banquina, La Tanga de Yolanda, Meta Farra, Llegaron los marcianos
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f5d6c73d20b15cf5ad7be71397d18ea3b6bfd01e74c389d7580d229fa1eabca. Chain 2 (Bitcoin): anchored in block 958880 (2026-07-20T15:25:26Z), 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/ARF062100942.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19592cd6ee01546739aeca4b394b7be08e0645c1e2b07d1a0b46ec276ad3e146. 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/ARF062200501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x837e6d5a64ccdd55773ac4afe40e529c68730df5704bc8ead68c8b3e03e3b9f8. Chain 2 (Bitcoin): anchored in block 958121 (2026-07-15T08:02:12Z), 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/ARF062400285.