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 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 0xc1b1bb525e6bcf5d1aca1bd51011dcccaf5ab1eea38cbb49c0a1b84adb033b2a. 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/3c803cb8-9b54-4557-b6f1-b2f3049f3244.json and https://artists.proofprofile.net/proofs/artist/3c803cb8-9b54-4557-b6f1-b2f3049f3244.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 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 0x6b2b81a89f2e6f17a8667397cca6ae91640805f64c013d6cd1e4d2a0dba0d556. Chain 2 (Bitcoin): anchored in block 958991 (2026-07-21T10:04:40Z), 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/ITC700600382.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c788c1795e70dde75a3f7ec764e1f4f9c47f07971815ccea5b35bcbc136ac88. Chain 2 (Bitcoin): anchored in block 957898 (2026-07-13T19:28:48Z), 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/ITC700600383.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0439d9ad4b188e2bede0ab0da171248ee84acd0defb78f2b8f122a6e965c8ad. Chain 2 (Bitcoin): anchored in block 957898 (2026-07-13T19:28:48Z), 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/ITC700700535.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d6ee3ea7225d26535bc16c3c2783d0d53aeb99a7713d85afa4a601bc169da34. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/FR6V80998284.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x109410e6a2cb196da53e0dd17544ff4a4baa3b541c9319d7c3c669dde6f8fa59. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/ITZY81200004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e3538c93e5af45278cbde3c1eb30e810fe2ea960cb30cef42eb6cf2b6816bb8. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/ITZY81200011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf751d3d8b2c1f8dc29c9a46ffccdfdca03d929d8e78aeaee3d4199a1f3ce0aaf. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/FR6V81606664.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8963d6fc63ef6e512b0ec66fb2c8902113c20fdc84a77ce92335b389630cda62. Chain 2 (Bitcoin): anchored in block 958662 (2026-07-19T04:43:15Z), 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/FR6V81606665.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x272923f41a8e0c43ce474de0b77884e007a92b1983af0f7602c386673bb34cd6. Chain 2 (Bitcoin): anchored in block 958436 (2026-07-17T16:42:22Z), 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/FR6V81606666.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4acb2ebb18fb3c710b34cee68c16003db470464a4171065601d4432d288d659. Chain 2 (Bitcoin): anchored in block 958996 (2026-07-21T10:57:35Z), 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/FR6V81606668.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15d389eb32c91d3a03482f367ddf852c09cdf26ac1356bb89bddc7467dc4f1f4. Chain 2 (Bitcoin): anchored in block 958538 (2026-07-18T10:30:13Z), 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/FR6V81606940.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ecd23f32d2a5f25ac99a0f01147a23632388db461cde3b3c2321e9bded5cd6e. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T15:48:23Z), 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/FR6V81606943.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7de4b08f5b8c5a0e6967d80f30c35b78d3d45e77dcefac2935e8ac2f067a4377. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/FR6V81603735.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ecf5a1485e2509e154347ca843dc70b5d0b946749818f25da7f330ba2e08504. Chain 2 (Bitcoin): anchored in block 957898 (2026-07-13T19:28:48Z), 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/ITZY81300003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3f4e44f779ff3d80f594676b425a908535ff8f8b8506abc144ca2abe3d57c1d. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T03:03:40Z), 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/ITZY81500001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x485966055aa126a6a47f8c986928da9b949eafed85b462bc4a13f28afdb77d9d. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/ITZY81500009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02ef7e9579154ff6b1b18f752bb3caa1e9e437507b16fffc90fb7d271caf7e62. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/ITZY81500008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x864dc8b5a9acbfa1275738559ca46bad8f16762bce4755bc4bdae5f4fb86a0ed. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/FR59R1806156.
La notte della Taranta (Live in Melpignano 17/08/2003)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcac4bcaafe7cf4e250cc3a18f156445bceb4d8d8ebdd484e359f8cc3f4e15287. 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/FR6V82065456.