1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0xe30762e1f25e8b6fc9a2d4a57a209bd4f2eedfa7a93deeb75a4776bda2474e9d. 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/587edd48-22d9-4aea-b3c3-675d68aa3831.json and https://artists.proofprofile.net/proofs/artist/587edd48-22d9-4aea-b3c3-675d68aa3831.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 → block OTSBitcoinBlock must exist at that height 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 0x8c6b4ffa89dc272738aede0292675892e94b239b0b054700334c3c1df3ec31f7. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/ES5336504498.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab847da86100da492b1af0c48bd6b1c6cfa2dd578df966e5513467e37d155485. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T16:30:41Z), 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/ES5151800968.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdd3cb3736bded130f16d7783550b7dcce79912bb4644e18dc9048c5839a9e22. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T11:46:05Z), 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/USSF10549003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d8799b5a1237a30d7ff7b271c18f5e6b28a3797da0e988e6260cebf543e3641. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/USA371487925.
Éxitos de Los Tres Paraguayos. Serie Oro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04dcae4fb9eb42997d5c9b44ff08dd9f3903ccdd8f8ad1a3952ca3b0817ac142. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/ES5240200799.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c01d1bcd200ec2d5ee21f5dcac52454aa38b1d9cb3167b27e76d6abab86254d. 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/QM6MZ1540087.