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 0xe2ff2fcd1168978ac1137e52273febf78a1ca19ab50a29166412d26f83606e71. 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/71a29e0a-fffa-4d7e-b8ce-28430c1cfe0e.json and https://artists.proofprofile.net/proofs/artist/71a29e0a-fffa-4d7e-b8ce-28430c1cfe0e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
All the Things You Never Knew (Electronic Instrumental)
Do You Want to Build a Snowman? (From "Frozen")
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 0x21891f6c4e567ca2cb7b8b0eb707e7b54ff16697c65d60456ecc30a89dcf7205. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/USCGH1525709.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe16311b82d9d9e72f11f6dd957e7e5cc32e8388f7fa02d8fcd17123653694f7d. 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/USCGH1536367.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x621263bedecf21ec755d34ded44b9d9652ab55cbc5d869dfc7ab1f795aad1074. Chain 2 (Bitcoin): anchored in block 956402 (2026-07-17T02:42:05Z), 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/USCGJ1690780.
Scared to Be Lonely (Acoustic Piano Mix)
Can't Help Falling in Love (Electronic Instrumental)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9370eb983190a9d193a3d8c86481231a3693f7c6bfe80b4140bb8116e49677d. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/USDY41911768.