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 0x074599a73bc25bb68fe354eff6f5262fc91b7b3eb90da3ec714fdcef219dc7a1. 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/f508253d-ba1b-4f83-be25-0dad1f3a2c36.json and https://artists.proofprofile.net/proofs/artist/f508253d-ba1b-4f83-be25-0dad1f3a2c36.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
México Se Pinta de Luz (Only for Streaming)
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 0x3e1b0ff938205f7a02a3b27a988f4bed0319f03a1543ae64670b785ec94546e3. 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/ES5117700038.
Cuentame Como Paso - La Generacion De Los 70
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf80db35af4638a2c1576e65b7d104fac9fa9d2c581c824bf5d7e336ba84d6041. 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/ES5117700035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf80db35af4638a2c1576e65b7d104fac9fa9d2c581c824bf5d7e336ba84d6041. 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/ES5117700035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e1b0ff938205f7a02a3b27a988f4bed0319f03a1543ae64670b785ec94546e3. 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/ES5117700038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3313a8fc6479acc47b88187ed821fd2e6194d540bd244910614e94e62fa89ca. 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/ES5117700036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ba21afc9070edd5429e3f580f9914f2ab55472d3c0698e77f17197339aa5342. 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/ES5117700039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ae25f1dce9171ddf17f91eb29c030b5ec70484dd7ed53bfe9ba8cb04bf04f6b. 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/ES5119902944.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62e4aaea6471ffc2e1861bfc35e559572c0d866a09c106fb34c63142c8d2a2fb. 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/ES5119902435.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x560daa9cda457085584e13118d550ad87babea9ce828f80abec42a0831e1b24f. 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/ES5117700040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x069a5a2ba427497af3fd15516d1d7322fe3ae1db75b4bba419c37588f778630d. 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/ES5119902431.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd26f0391f1bf6a24a25977336de9d559a61eb01e3aeb6237fd8379ddbb95eca0. 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/ES5119902438.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf29bc96e7262064dc07a27fc0f82aa44ce34068f9e6ee0a97b7a82f035aaebf0. 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/ES5119902441.