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 0x100da51bdad00ca1ad7ae7866b3b3d69eb7c0be3f26339d8b944014a1da52cec. 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/b2bdb404-1def-4770-b2df-caacfb3ee682.json and https://artists.proofprofile.net/proofs/artist/b2bdb404-1def-4770-b2df-caacfb3ee682.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Chocolate con Pan (feat. Israel Amador, Big Lois)
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 0x82b2f906e3eb8635b211c18717920feeed833e9c37df28dd1534ec3bd69f52d4. 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/ES5152201736.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a88360f196706caa1d8675394b6fd928e44663edd5e05c290562f2737e617e4. 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/ESUM72302643.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd08805417be6f4bfd5bcb607a6a25e134d2e5a0edd7dd67ed5aa5e008a81d9bc. 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/ES5152100449.
70 Grados (feat. Nanpa Básico & Yubeili)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fd7103ad9ee9c5f5bffaf4e09b52785f5b1abfcffdda47d4b8cc7cb558cd890. 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/ES5152100460.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8005b5cdc482c1abfa57e66628e2fc3e8edf13e0cc252750b1a08f250e36192. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/ES5152000323.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3aaa3ebf2a6fbca6ca281a89cd41a29a82b0a75c843c9344063a0de8c54c646b. 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/ES5152000053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf35d0d56a77c97ad14567539210138ca50022ba35cb5dfd5aa9385ecfbf54ad7. 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/ES5152001268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a193d2d0bcc151a8bab88b37c6c600191fc7d21aa239acd51f1c74ab52ed551. 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/ES5151900869.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a43a9bd75787933940065748175cc19afe5f82d30dcdcb12ec21ae0c372e63e. 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/ES5151900558.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bbbb05c71596b1e53fe43fd63a7f3449ad8fe79462245428c45c1afd8a4a620. 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/ES5152000922.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8435a5c14b3c60a7aaeea8dc5deab1b2e75d4f0dcb074043ea20bb9beee83e7b. 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/ES5151901360.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde5179efc167e362809425801e9fbf097f152c674955111f01220a7b2df61d8c. 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/ES5151901618.
No te enamores (feat. Rvfv & Maikel Delacalle)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc7ba89ab53ee4a660742d71212b37e86e8997d28a79374bcaf17e236908fa1e. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/ES5152100132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5941a76bf31b308ddcec28edff3530b12f329d2e2a85c2b2b6188ee870603c00. 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/ES5152100461.