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 0x97029584129bc34ed2a8c5691352cb6b85a0c104ab5536057bf6dbe6313a34ca. 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/74a11857-ea83-4e9d-9763-b6be1aa7ec23.json and https://artists.proofprofile.net/proofs/artist/74a11857-ea83-4e9d-9763-b6be1aa7ec23.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 0x4279108793bb6da4d7313fbdf28081ee7dde0945630767440440e862239ba9f6. 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/FR6V80123453.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe41a03007daeaf0d2c44079c8550bd7a128d41c2ab98247f5bbbaa023975e4bd. 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/FR6V80123456.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb272fbdfc574ce6db51aaecc811141461e18753634d07871b6683fae578f02ea. 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/FR6V80123462.
Patrizio Fariselli: Area Open Project (Live in Japan)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9543ffa6e2147e8fc1b0778910682fb91f9ae2947329b41c83a7e63ede1a25f. 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/ITP800800027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65ebc5dac702e421295f2b32c51e832df620d36fbc96ce37fab686fce6da16dc. 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/ITOOJ2300020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2c9b3eddb8e89187a0a1f5b70f1ddd931477f4479e2ad1c47818ab5493fa506. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/ITOOJ9900065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf94dcd635f799f82d464eda06d26873fb986b064b9fb1b8eabbca2197770541f. 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/IT00J9900080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7279a14cea875965a2c21ceace323024c117b7bf3eeeda7c54f01037d18a7a9. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/ITOOJ9900066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeda9dc9894d8363a3a6c18e7ea7d89bacd16936046578775e57661aeba74b88a. 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/ITOOJ9900067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35a3499f2fcbcb3d4e51633b627f803e70f35e25caea011aa6c38103c17a1d26. 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/IT00J9900082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cc63023498e0cbd020ec694d3e371d809ad214b8f1e4f2593013f0291703708. 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/ITOOJ2300053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b755f3c5ed6650e07a95c0a95520056fd3d67ebc2ab87c7430baaa46f0a8074. 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/IT00J9900077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31e583ff7afda231caf751543f1b1438b9d62bf896d5c48527d297279d0a0080. 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/ITOOJ9900069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1863ca31d288fe0c45bddfe420f9906daf06a3a1ba8abec7a791e752a0ec8e24. 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/ITOOJ9900068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x163bda0a27cba6ac251178a50036578ba1adad7be3f7fce9536a73f4f065cd1b. 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/ITOOJ1400247.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a53d0935a52dd9eb996f8b2dbb229d8a1551b5868551345332abadbe0e624bd. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/ITOOJ9900072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81827f8f7458d07df5647981e7d326ad3ff90de4171381ac1456fafa5ffeb165. 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/IT00J9900076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31fcf1dd8a8e0da126be5d6bc48aabe575b7ccd0e77f09c37271993c9358e05e. Chain 2 (Bitcoin): anchored in block 960419 (2026-07-31T15:20:33Z), 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/ITOOJ9900064.
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
Alla ricerca del silenzio perduto il treno di John Cage