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 0x249197537558b7f270112a5aaa73851e10b0773ac26f3603b25382c735561f59. 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/f6db2290-0cca-4f50-aa4b-34794fe06bd0.json and https://artists.proofprofile.net/proofs/artist/f6db2290-0cca-4f50-aa4b-34794fe06bd0.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
La Reina del Flow 2 (Banda Sonora Oficial de la Serie de Televisión)
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 0x0242a4b32422da73fb0efa0606cce26e5f763ab9cdfe5cbcec6b2f6ca5a2b032. 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/ZZOPM2105598.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa77cfca3ea29b18f119bfa86321f1ac42b3bbccbcdfbca041236c39db5c69aca. 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/ZZOPM2105600.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2598839188bbcf4c0c335550629563a5879f9491e65929e1b646492cde132809. 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/ZZOPM2106330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x330ed344db1145f637ff0d3fd777c143165f20ab62016adf813b4bdb374afb94. 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/ZZOPM2108720.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x647c302629bfca40772a63a240ef363d6f8240eb6b896a58e6908319a85a1739. 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/ZZOPM2105599.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda0311e5f34fe548b1d36e2fdb82f8009b2831728965b62c4d75a2c9331f72b8. 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/ZZOPM2109230.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fb351d206a504c82a50a3f66f2c23573f2631da1cbd4a93eff7d10426a2a7fd. 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/ZZOPM2105641.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2b752a13e1e4e215b744a94533e2cc4db839dce141b96073baa97f8f408fc37. 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/ZZOPM2105642.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbc27eaaf985fd1c432c9ed57be44da3b88342ec5b3bd9713ef2f9298a384e10. 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/ZZOPM2105644.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bf0a5593082729b0fe11c6f7ad09316ed00efbb98a2e1ceff288e0619279b44. 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/ZZOPM2105648.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7343f073d361ddc6e02187497195ac8a9a00692deb91a9ebb55ecf9d569d041b. 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/ZZOPM2105651.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4e086c3786eecb5dd4a9a63c72c25bcbb1b139b7cb889b6c4a874877fb9bd54. 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/ZZOPM2105653.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e64f3ccc9fd967772f369bb33ce8d70f92dadf6509fe0597c317ab1855b3b24. 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/ZZOPM2105654.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b73663663a249782219cf98ae20348f450d924fb7f4c5e1d1bd60c2257e5624. 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/ZZOPM2105657.