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 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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f46039521a6d8577439dfd35c3610f56e09e380e6336463c56025883c7f0787. 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/57dd0c2a-c60f-4011-8f44-fb2ad401731a.json and https://artists.proofprofile.net/proofs/artist/57dd0c2a-c60f-4011-8f44-fb2ad401731a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
I Believe in a Thing Called Love (Quarantine Sessions #1)
You Oughta Know (Quarantine Sessions #8)
Edge of Glory (Quarantine Sessions #9) [Cover]
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58d0aeb82eff41b0e362d9ba98732f64a3e293d6a68df4563f536e8df7f19899. 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/QZMZ92019052.
Guilty of Love (Quarantine Sessions #15)
Home of the Brave (Quarantine Sessions #18)
Green Tinted Sixties Mind (Quarantine Sessions #19)
Broken (Quarantine Sessions #20) [Cover]
(I've Had) the Time of My Life (Quarantine Sessions #22)
Hungry Eyes (Quarantine Sessions #24) [Live Session]
Burning Heart (Quarantine Sessions #25) [Live Session]
Luka (Quarantine Sessions #26) [Live Session]