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 0x569a7cec463fd7dfae890935b64259359e2efd39d2b7974bd2bfe3a0b6b535eb. 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/0e0ba85d-0783-41be-aaa7-328d347a9b41.json and https://artists.proofprofile.net/proofs/artist/0e0ba85d-0783-41be-aaa7-328d347a9b41.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Beatnik: il ragazzo tatuato di Birkenhead
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 0xcf7d30ae4b7a5bedd9d8122f7b49d9027cb7f66fc6c57bd2a2302823b9804cec. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/ITB260600210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9b3cff84de13274db8f833fcef76a67cbf44be281b33a4d37a71a4542e570e4. 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/ITB261000150.
Che Ci Vado A Fare A Londra? (Storie Dal Pianeta Blu)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5903bbd431601c3b3ae199e4e5ebb5b15a1740cec3288a873f96b5d6c5643d9. 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/ITUM71600350.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e704c89966b2b34a78cda9dce5eac88cf8f51d16e035a56b3f7dff9e6381a63. Chain 2 (Bitcoin): anchored in block 959008 (2026-07-21T15:02:22Z), 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/ITXPN1700001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x839e031ea38c6b359150607233e02a900180cb57f8ef17b04ed1dcbbdd25368f. Chain 2 (Bitcoin): anchored in block 958980 (2026-07-21T07:04:12Z), 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/ITXPN1700004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73a392c8f2393e47e853e1673408e5fe77298bf89e81044ed7cb74f5a5a09412. Chain 2 (Bitcoin): anchored in block 958876 (2026-07-20T14:59:04Z), 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/ITUM72300796.
Che Ci Vado A Fare A Londra (Storie Dal Pianeta Blu) [Anniversary Edition]