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 0x2cccd099a12a835945d753c350f030398b559c557babd90e5fd49aab0886efe7. 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/4331b6a3-2273-4565-bde5-8183d87d990d.json and https://artists.proofprofile.net/proofs/artist/4331b6a3-2273-4565-bde5-8183d87d990d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
I'll Be There For You (Friends Theme, Classical Version)
I'll Be There For You - Friends Theme, Classical Version
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 0x26113f7f00fa6c81e0ceb97ea7e07ff8c706532e25385db92221c9ac6920c887. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T16:26:27Z), 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/QZTBD2339895.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0d4be5e6f6c7b479c1d0918023a3f95e7aae939e791ac368b6be3742888e074. 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/QZNWW2258579.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03374898ad625237baff2c3ee42060087c94db4ba8852681ebf737d011580e31. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QZNWQ2266592.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f21a381bbe418e9c4f96b50215801c609d97c4ee861ca6b8511d87e6fdba8ce. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QZNWW2259340.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf68153ce5af5db74a84548d60b9c8d64a5183127f7e88ffb3ac2acdf5780bff. 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/QZES52372574.