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 0xabea8fe2130e0968210ec9828133a9747755aec2973c9f53d9e4a9d43089463f. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/91a53631-d4af-4bab-aa40-1312f35109b5.json and https://artists.proofprofile.net/proofs/artist/91a53631-d4af-4bab-aa40-1312f35109b5.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Set Fire To The Rain (The Voice Performance)
Every Breath You Take (The Voice Performance)
I Can’t Make You Love Me (The Voice Performance)
Signed, Sealed, Delivered I’m Yours (The Voice Performance)
The Complete Season 6 Collection (The Voice Performance)
I Can’t Make You Love Me - The Voice Performance
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 0x56ad67fd824bef1f258ec3bf41b1d883caaa76045a2974b28f716f8f160efe8e. Chain 2 (Bitcoin): anchored in block 958563 (2026-07-18T14:29:03Z), 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/USUM71406124.
Every Breath You Take - The Voice Performance
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x229d7806ec702b68e0683c13662b31fea775687996dcce4981b20e717d76e9d6. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/USUM71406640.
For the Birds: The Birdsong Project, Vol. I
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x255e14926f2fd4b14e201106dd1d1e74b8aac6e90fc03e8b3c0bc87e0f867dbc. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/QM4TX2274004.