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 0x5c58449580ac0a7d5682e25b3f5bbcd290575803266512b0fcc35132e0a7487d. Chain 2 (Bitcoin): anchored in block 953750 (2026-06-15T06:12:23Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/acfc1706-839c-4f0a-90e9-67759ed9fa38.json and https://artists.proofprofile.net/proofs/artist/acfc1706-839c-4f0a-90e9-67759ed9fa38.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 0x34ef4fd9478ff2e1a9cb1d0f6e7dc70f19d53cbaa035870b857e32cf30cefafa. 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/ITUKK2400009.
Non ridevo mai (feat. Brucherò nei pascoli)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55db4f91d1646c37f7c47a939240ff182dc9f4a2f6f4565203e72a9cab397921. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/ITUKK2400005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78d3c5c6925215cc48e0556c9b90160ceba5d3263a8fb1736b4e7e1356e1a5bd. 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/ITUKK2400012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34ef4fd9478ff2e1a9cb1d0f6e7dc70f19d53cbaa035870b857e32cf30cefafa. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/ITUKK2400009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3c3705cabd78b108cff394c69ec3e87497e89f029c243f0aa106df6120e7a25. 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/ITUKK2400018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6dc9aba83ab1251c2126278f92515b010c6259d036a51eec84cdbbb6ffbdd6bd. 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/ITUKK2400019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08387532f5cf42b15a34873532b2d45cb74eeb06880f718d8cf9087efc402653. 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/ITUKK2400020.
Il mio ultimo progetto musicale di quest'anno
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0b8f5f33dab095e38e48027dda6a8836d445008527bb21550bd316c197cade5. 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/FRX202114863.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc276f5036a978d5d67522fd275f91decbbf19d71db95b6b0918370ce54c07d3f. 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/FRX202114865.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb715187c704d5653ea506b203b2b2edd61d4ef1ccb9bd1284ee5468ae693d6d6. 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/FRX202114866.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3b14f41bf37bb81591fa50a50621363a43e2c7396df51fba67ce74748240e1f. 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/FRX202114869.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27776dbdf22663ec7d35a765b93b9b433998222def93773f7cd86d70142c7fe9. 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/FRX282131220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x319a1c89d7a0bcac1b24d4c1600dbb0cc42371341e72a1645adbe3c1cf87851f. 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/QZFYX2162202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca9ca99cfc345faf3d9beb70323e7f841eedd1e520028777ef256f6f8e3160eb. 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/QZFYX2162209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x587bbc9035ac1b40937a2c31fd74127bba819a4e90b14ec5c01bd31c7c5e0581. 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/QZFZ32142338.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x563bbc708f010e4b06e4eaa40f66a4612f339bf8cc205a0326f27394877920d7. 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/QZFZ32142340.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25aa16a568df3b8763fe6a9350a5f9be8a579eddf3844164c7798d7aa373ebb3. 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/QZFZ32142342.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0b8f5f33dab095e38e48027dda6a8836d445008527bb21550bd316c197cade5. 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/FRX202114863.