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 0x5d5a8b3b20e6b518cc978e966fe7260047c1f2377646f52cff58e5eb2f4216ea. Chain 2 (Bitcoin): anchored in block 953648 (2026-06-14T15:20:52Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3d21ab4e-ca34-4427-8d58-34954ac9e7b8.json and https://artists.proofprofile.net/proofs/artist/3d21ab4e-ca34-4427-8d58-34954ac9e7b8.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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 0xabb352184389f77670e825c3da51f7bddd19cb683eaf01efd62b0c3428d630f7. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/ES71G1907341.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8980fa238e2dd97fc5ad9b0d29492fd8f9ae080f58b82b1e38902191e7fd1d87. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-16T21:55:37Z), 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/ES71G2030424.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2955229ab7bdfde67c879fbff4190cf67aed3ed666bc068eb0a09d76e74843d. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/ES71G2145408.
Sesiones Betamax: Paradero Astral (En Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x984dcfadef239ba1eb1a98726e9b9a8b541faf20da875680cbb4cea666b2fa5e. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T08:53:13Z), 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/QZNJZ2483711.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30d2690b34c3504fe04e2bc47a077971595aaea7a0d30218ca3627c6bad088f2. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T10:51:16Z), 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/QZGLM2552758.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2955229ab7bdfde67c879fbff4190cf67aed3ed666bc068eb0a09d76e74843d. Chain 2 (Bitcoin): anchored in block 958662 (2026-07-19T04:43:15Z), 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/ES71G2145408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf02b1a13def936e8a048fba57ade08c25ce860812589ef33620762367fb76aff. Chain 2 (Bitcoin): anchored in block 958384 (2026-07-17T08:27:02Z), 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/QZGLM2552759.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x984dcfadef239ba1eb1a98726e9b9a8b541faf20da875680cbb4cea666b2fa5e. Chain 2 (Bitcoin): anchored in block 958911 (2026-07-20T19:24:37Z), 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/QZNJZ2483711.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fb6ced42006c28c392a4d66995f9c4d8e0a30c3b4b0bc24fe5caff7904ff410. 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/QZGLM2552760.