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 0x1b956f21ba8a0da542f34c0d134638595cefe7e6fae9c26b6a915ba2a0f6ddfc. Chain 2 (Bitcoin): anchored in block 954659 (2026-06-21T06:14:42Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/de47b7d0-653f-46cc-b9ff-c813de5cfc45.json and https://artists.proofprofile.net/proofs/artist/de47b7d0-653f-46cc-b9ff-c813de5cfc45.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
World's Best Lullabies, Vol. 2 (Instrumentals)
Sweet Dreams - Lullabies, Vol. 2 (Instrumentals)
Sleep Little Angel - Lullabies, Vol. 2 (Instrumentals)
Rock-A-Bye Baby - Favorite Lullabies, Vol. 2 (Instrumentals)
Lullabies for Baby, Vol.2 (Instrumentals)
Hush My Dear One - Beautiful Lullabies, Vol. 2 (Instrumentals)
Hush Little Baby - Favorite Lullabies, Vol. 2 (Instrumentals)
Lullabies Vol. 3 - More Instrumental Lullabies, More Beautiful Music For Baby
Lullabies Vol. 2 - Instrumental Lullabies, Beautiful Music For Baby
Little Baby Lullabies - Vol. 2 Instrumental Lullabies - Music To Soothe Your Baby
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 0xd87d497f6e9e6cb09118e4c1fa721cc6743b221d4efb901ba5155629b6d5fd03. 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/USJ3V1095893.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7aa078ecc3e9c5285856b8ad373f92406a0ddc06386c695b8cf9fea27955ad0c. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/USJ3V1095897.
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Little Baby Lullabies - Songs To Soothe Your Baby