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 0x3d73da88068415b731aa3b1cf786a37492cdf5fc17f279f31da05b7c86985f06. Chain 2 (Bitcoin): anchored in block 953909 (2026-06-16T07:53:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0e6960f0-4ba5-49ff-9915-5953f2b22393.json and https://artists.proofprofile.net/proofs/artist/0e6960f0-4ba5-49ff-9915-5953f2b22393.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
EL ASESINO DE LA BARAJA (Música original de la Serie Documental de RTVE)
Verne - The Shape of Fantasy (Original Video Game Soundtrack)
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 0xa54e28a46af878ff13b4631ebf10aaf0da53600a73385a7f1de6184af4494b15. 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/ESA092404389.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2b595b45591579b4503612b4593c17476dec4441e5cb617db27c4d8c6a50c20. 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/ESA092404390.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b1f6e43a3a326d6859bec3a98152c69bae9d4e1fc36e5464201e8da96511b77. 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/ESA092404391.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad44e6337d47840d4264598f6d3fc635f1a7a4ea1e6651520fc22c9d65f91370. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/ESA092404393.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7b5c5841c973495abb847eca2fd0fa913e5a4a97487f484e448030982b41453. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/ESA092404396.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc32785a9efd0d6e69cbc07d96a2096ec57128daa710243146707412efc8cab31. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/ESA092404398.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bedae4b6bb249888fb9b83c51f69f05762508c4182eec806775a5cae86b946b. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/ESA092404404.