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 0x586d787a1f3325635947529512cd05ddf9e1183cb9d8c10a3e97f713f33c8d81. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3487560d-a5e9-4b0e-9e6f-0091dd83540b.json and https://artists.proofprofile.net/proofs/artist/3487560d-a5e9-4b0e-9e6f-0091dd83540b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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 0xce14a0d95b94107fc9c32e1b154795cf898cf2ebf9b7f4b65c12a86147cee51f. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/QZTB92272376.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03cf9e8e0430f3a3af1fe8faf6933a56133529afb3c640864327ab1d055fd94f. 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/QZK6H2537682.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4332d5b9f57566db95fafb57a7befdef16165a0a0c99bf5e7e557f66262d2a9. Chain 2 (Bitcoin): anchored in block 957785 (2026-07-13T01:55:31Z), 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/QZWFE2540103.
Le 150 migliori colonne sonore dei film - Titanic - C'era una volta nel West - La vita è bella - Don't cry for me Argentina - Raindrops keep falling on my head - Nuovo Cinema Paradiso - Hook
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b90b4adc07ad250ddea9aad39b33e5f34c0c77e5269710f411c56a044a1564a. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/ITS041200737.
100 Grandi Colonne Sonore ...indimenticabili emozioni...
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67fd3b8cdad6a869dbbc1edf38ed47d108f3939eabee32767ef6f197c68e2b4d. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/ITS041200732.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe7fd58cc3ef95dbd5849452e3a7ab17bd950e9905995ac519e58fce5d8374ef. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/ITS041200731.
One Day I'll Fly Away (From "Moulin Rouge!")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd936c38d3f31ccddf99ef0796cd52a6193172e25ebdcd1df9cf9fd9f5d264edb. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/ITS041200739.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a48f843313da80988b988c2617ce0fabfbcb8685678cada43f93b53b70a97c4. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/ITS041200735.