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 0xb962b06cacfc7d69996dba361eef5bae9f2f2b3440d9268419dc16dd6560fada. Chain 2 (Bitcoin): anchored in block 954035 (2026-06-17T02:39:28Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3c9e392b-30bd-41ba-90b8-ed0b78137b9e.json and https://artists.proofprofile.net/proofs/artist/3c9e392b-30bd-41ba-90b8-ed0b78137b9e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Lullabies (The Most Popular Children's Songs to Sleep and Listen)
The Brit Kids Music Box, Vol. 1 (30 Classic Nursery Rhymes to Singalong and Listen)
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 0x9caf172987aa3e79261f49de0c80674b897378a4be583313d375f41d2891adee. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/DEAR42083715.
The Brit Kids Music Box, Vol. 3 (30 Classic Nursery Rhymes to Singalong and Listen)
The Brit Kids Music Box, Vol. 4 (30 Classic Nursery Rhymes to Singalong and Listen)
The Brit Kids Music Box, Vol. 5 (30 Classic Nursery Rhymes to Singalong and Listen)
The Brit Kids Music Box, Vol. 6 (30 Classic Nursery Rhymes to Singalong and Listen)
The Brit Kids Music Box, Vol. 7 (30 Classic Nursery Rhymes to Singalong and Listen)
The Brit Kids Music Box, Vol. 8 (30 Classic Nursery Rhymes to Singalong and Listen)