{"copyright_id":"0xd1feeffda608eefd8aa128ed99a14e23c9f3b3ddb78d9bb12b9cacde541dba3c","name":"Pizzicar Galante","registered_at":"2026-06-17T15:16:35Z","symbol":"NIM1435620","token_address":"0x88afc627a96259ad9dcec2231b9b0a747ddf5e3d","type":"artist","uuid":"8e20bdd7-6432-40bc-b4c7-f2fbd89689fc"}
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 0xd1feeffda608eefd8aa128ed99a14e23c9f3b3ddb78d9bb12b9cacde541dba3c. 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/8e20bdd7-6432-40bc-b4c7-f2fbd89689fc.json and https://artists.proofprofile.net/proofs/artist/8e20bdd7-6432-40bc-b4c7-f2fbd89689fc.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Un Air d’Italie. The Mandolin in Paris in the 18th Century
Sonata No. 6 in D Major, Op. 12: I. Adagio
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 0xe76f4611359097e6c17fdbd1d696d4a16d33547a8420cbe2722e5f924ce99c14. 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/NLY331604210.
Sonata No. 6 in D Major, Op. 12: II. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf58527605f62ce050709fb4e129b6ff7539686e78317f40890bbf2898963b886. 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/NLY331604211.
Sonata No. 6 in D Major, Op. 12: III. Adagio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x067b83e3b625a30b346da387eaf3afe752d18b9795b0ce2067b3c1f0e1825e4f. 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/NLY331604212.
Sonata No. 6 in D Major, Op. 12: IV. Vivace
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8657ed7b6f9cbd82387934098e2149fc9fd57607a2ce05e8dfcf2d168fbce9d4. 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/NLY331604213.
Sonata No. 6 in D Major, Op. 12: V. Andante
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0514c613884e155831ebae9c1bd1db3ed30311bc670d6272019cba5b99a2497e. 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/NLY331604214.
Sonata No. 9 in D Major, Op. 2: I. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc59e0cb17189b6d82bf6ae201b431084e1f1ba0780cb534939903f7ea2b71da3. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/NLY331604227.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x800d48bf886a1b7f7a18cef03b991b1efe5635a1e8e6ea6d568b796d48b95b21. 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/FR46Y1711503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xace6cd16c70f1135e95ee2b13bab87dfd9794d192db7babd4b0534bf9095646c. 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/FR46Y1711512.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2048731ca12c9450e8550273513a13a86271425113d1fe31cfe3b0e5c7e02aa6. 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/FR46Y1711517.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ad650869721f3dc7970985d058b226ef402130d76e9e35873d7484acc152403. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/FR46Y1711518.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf91b748927bd3f5139344634932fa79e31667d03f898353ae84d1f057cf6e86e. 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/FR46Y1711523.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4792c9378139a0b38cf2b0fbd597985406c67fffe57c8323810f4456bb93707. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/FR46Y1711501.
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 0xaedd5e95fcc30bb7fb559c1c358cb30dc49dba3ab124eb1f2cccb2420c000304. 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/FR46Y1711502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5ff6c3f147556ed5532c8dc6509ea42cc036345289c3ff0a39da08d79f1b6f7. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/FR46Y1711504.
Sonata in D Minor, Kk. 77: I. Moderato e cantabile
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1819dc040434fd08e8f0b08b411350ceec535b7618e12e141b5810cd71b91567. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/FR46Y1711505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf86583f5a97fc1a69832a9e657678f4d8169f865afdcaadd769adf3133f784bb. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/FR46Y1711506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x244d3794b634cdbc191a548cbdfa4cc17bcc74d375ddeca633358f3010454b84. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/FR46Y1711507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8de60bfbe3a883f739ed52e4ca3eeb85fe8da2d7f0553fc1f85fd6c596ff1cdb. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/FR46Y1711516.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadb4ff93c9fcae865f591066be692b989dea8fe6a0c90e9d45b9eaa76deb55ed. Chain 2 (Bitcoin): anchored in block 960509 (2026-08-01T04:30:37Z), 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/FR46Y1711519.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf846550bb62cd67d4da7ead965b25e10dfe902e7a28c9655172e53d8524d1e68. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/FR46Y1711521.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ae12e01cf6f4ce82da4a75c384469e20873f75dc014cc900eb9d3e281762a04. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/FR46Y1711528.