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 0x711f5a0ae171503894fa6e85e3bd36300736a2a5d3ec9a7b2aadbf1296a4f2f9. 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/65042fcd-c206-459b-9661-06b5e9b42a2e.json and https://artists.proofprofile.net/proofs/artist/65042fcd-c206-459b-9661-06b5e9b42a2e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Troublesome People (La Parma Molesta Anthem)
Hyperbolic Non Euclidean Universe (Part.1)
L'Uomo Samargantico (La colonna sonora originale)
Non sarai mai solo (Inno ufficiale Rugby Colorno)
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 0xfd309d74fbd41c49491733750ce2ddf568efa69e73dc7de3312937338fd81826. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/QZPJ32174964.
Losing It (Slightly Harder Techno Remix)
Losing It - Slightly Harder Techno Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2bdaef379be66f771a2b767a481fc7039095095ff255f7d7f3b0718f50abcf5. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T07:28:23Z), 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/QZPJ32211073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a6b167a9547d06f11c439de346bd4dce6b46eaf3071478daf8e01eab1ab54bd. Chain 2 (Bitcoin): anchored in block 958733 (2026-07-19T12:51:21Z), 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/QZPJ32297080.