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 0x49cb65bf75a1d1707c0435919d5d3c59cd866f43ad038ed6aee491a6bd16e404. Chain 2 (Bitcoin): anchored in block 953599 (2026-06-14T06:43:55Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0e0b14f0-b2e4-4ba8-91df-09a05aab165e.json and https://artists.proofprofile.net/proofs/artist/0e0b14f0-b2e4-4ba8-91df-09a05aab165e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Olympic Signals (Improbable Music for People Who Aren't Vey Disposed)
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 0x51eba6a788b6298fe4cfc080cb2209c578c0a1a7385e458e2fa0f4d2766107d9. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/ITR931600398.
Le Acrobate (Original Motion Picture Soundtrack)
Princesa (Original Motion Picture Soundtrack)
Pane E Tulipani (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46b969ff53e205606ac46006aa5d10e3d40cfb1719ba2c97c9a63ed3def760fe. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/ITC000000401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c2ad988fee859b1fad53e0d9592e7b3bcb0a152f1562565f1aa593525caa5fe. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/ITC000000402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6cd19b31d419061c594f4088f6d11a33a8d617bd220f2f7ce56e00558b73697. 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/ITC000000406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1d96cbc057bb4ad85fcfe2d22245b034efac18dd1ca4337420fba25203b7214. 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/ITC000000409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeff01d711b3bf3b8719b4fcbf2c8bfa5dc42f44682a77ca923c389606cde072c. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/ITC000000413.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51d720f2c24549fee556171256307d2c41ecdd2485ea1ae3b03dd464828e6cda. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/ITC000000415.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3d2c6d3870a10500c6043ee43fad40dd660c0b3648eacd66a45fd766a974470. Chain 2 (Bitcoin): anchored in block 960105 (2026-07-29T12:35:17Z), 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/ITC000000403.
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 0xa79ee9b619bf915ebe5b99761ef0c9ecb7fdf2f798d55b4ff3adc1e35da712c1. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/ITC000000405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9af1ed75c9f789dc169620587c7d97c35f92c37fdb931d87d0a1df4e552cd2dd. Chain 2 (Bitcoin): anchored in block 960339 (2026-07-31T03:13:37Z), 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/ITC000000407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9f30cafe1e4e93c38c3b6007fd332caaab852b43c6aca60040361b82157a070. Chain 2 (Bitcoin): anchored in block 960209 (2026-07-30T05:15:54Z), 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/ITC000000408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea5f15a5a62974618458da38dd505b95a501f1e58f697e714606f184d9f8d357. Chain 2 (Bitcoin): anchored in block 960427 (2026-07-31T15:59:18Z), 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/ITC000000411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbca453e2388fd9583f31fa52beda3b66e7e7c8e6f4d2fe8a2b2c4cebb4ffee7b. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/ITC000000412.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe687a528cd7f492281ea6ec7cd996f9369ddaa028a98bd5207fa1170fc9784a9. Chain 2 (Bitcoin): anchored in block 960181 (2026-07-30T00:53:20Z), 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/ITC000000416.
Sono viva (Original Motion Picture Soundtrack)
Cosa voglio di più (Original Motion Picture Soundtrack)
Agata e la tempesta (Original Motion Picture Soundtrack)
Il caso dell'infedele Klara (Colonna sonora originale del film)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7681beb706d528202c6648b744767ccded187099aa499ff4ee6bcd45df3e4882. 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/ITD900800074.
Nippon Eldorado Kabarett (Live at TrentinoInJazzFestival 2014)