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 0x48f4656d568f4e833776d3688c8619d14cbc1def96d7e6bceb800241151b5e43. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/650ad58d-53be-42bd-abae-367b300f8ff8.json and https://artists.proofprofile.net/proofs/artist/650ad58d-53be-42bd-abae-367b300f8ff8.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Dreamland Lullabies Gentle Whispers for Little Sleepers (2025)
Dreamweaver's Lullabies Woven in Moonlight
Liam's Magical Lullabies for Babies and Kids
Midnight Piano Lullabies Gentle Music Box Dreams
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 0xc2893f88004c2cc5087e6ebc61f8783f9536e9227a4bd57d2da854c8d21b5f50. Chain 2 (Bitcoin): anchored in block 958917 (2026-07-20T17:53:56Z), 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/QZHNA2528269.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2466696e6c385924238791689a27cb66efc747afd9b7b5c1cf165766bca3dbf. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T21:46:51Z), 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/QZTB32530601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e4a3dc05f5e7c1482e76c4b1457792a68c7071b8e8f1c73fc5ed36dff2f59f7. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-16T22:37:47Z), 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/QZTAU2505713.