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 0xe23c9e5ed7eb8acd0ce761c3ed4068d7ed49958446221ef43125222b052b982b. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/46e6c250-092c-45e1-9011-d612300cf8a1.json and https://artists.proofprofile.net/proofs/artist/46e6c250-092c-45e1-9011-d612300cf8a1.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Lullaby Time: Baby Songs and Zen Garden Sounds, Baby Lullaby Music, Newborn Sleep Aid and Baby Sleep
Lullaby Time: Sleeping Baby Music and Ocean Waves, Baby Songs and Music for Sleeping Babies
Dreaming Child: Gentle All Night Sleep Time
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 0xd2706ae251e237130a0ba1b5e4e1fd103c2d952953d77d737bb5be29bc34cad4. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T12:03:19Z), 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/QZNWS2310994.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb14e3c11d6fb62dae3a429239ac0933bd813842796f7d8a2a6cdeaf51db3b1c2. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/QZNWS2310995.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8af2b4ae4d6f78c3fd5f5a69f243734a3077265348a88236094a464ba54bdc0. Chain 2 (Bitcoin): anchored in block 958838 (2026-07-20T07:01:21Z), 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/QZNWS2311004.
Never Grow up ~ and Other Pop Lullabies Piano (Featuring Piano)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3614b0db1bba86867ec3eb0d27f8ff320211d0ef51619dc375f990bf5beaf63. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/QZTB72359010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00e0ca899cf1ae2879e8fd1dd6655ec3eaee61ddf9a7738fa733308f7c8c7750. 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/QZTB72359013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbb661164f923598a83170a217b518aa9fd34abdc501a4808949a21413e58a37. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZTB72359015.