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 0xcb16d97d18d4aeee949696cea0d5301afdcb9940af8c30a4feec028e3189212e. Chain 2 (Bitcoin): anchored in block 954647 (2026-06-21T04:36:58Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d7669c67-6850-4c2e-b27f-b792dc4e65aa.json and https://artists.proofprofile.net/proofs/artist/d7669c67-6850-4c2e-b27f-b792dc4e65aa.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Gioseffo che interpreta i sogni, Pt. 1: No. 1, Sinfonia - Live
Caldara: Gioseffo che interpreta i sogni (Live)
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 0xe0a1e2504615e409b718f448d3ca42219d869832cb41cb71687728d46696773b. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/ES7892500301.
Gioseffo che interpreta i sogni, Pt. 1: No. 2, Testo è del giusto il cor un foco - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe15dcae71ffd874b41b1e74ccdcfc7f9d75a534602be80866ede52306e974d4d. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/ES7892500302.
Gioseffo che interpreta i sogni, Pt. 1: No. 3, Testo tal fra gelidi marmi - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38e3e309c9aa32e29031195b44ad8dbcb636c72bfe33d3010dc0f145d0c9dd98. 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/ES7892500303.
Gioseffo che interpreta i sogni, Pt. 1: No. 4, Gioseffo chi vi toglie - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9aa066a017d6d956fef6ce4c4313a013bc2801f032988e0a2730e1b135b317df. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/ES7892500304.
Gioseffo che interpreta i sogni, Pt. 1: No. 5, Gioseffo forse vi turba il ritener avvinto - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bc5b85402831a1f25c441208dbaca3395ab36d12c05cff309b855fba6371cd8. 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/ES7892500305.
Gioseffo che interpreta i sogni, Pt. 1: No. 6, Coppiere godi, giubila, o cor - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4e2048a8fe4483c314615e132340bcd225cbe97fe1c80f468248ef67f947562. 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/ES7892500306.
Gioseffo che interpreta i sogni, Pt. 1: No. 7, Gioseffo si, si, godrai sicuro - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14632f934fc82452c036101d80a99abdbe119b21d3235d378385e9e639199b3a. Chain 2 (Bitcoin): anchored in block 960506 (2026-08-01T03:50:58Z), 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/ES7892500307.
Gioseffo che interpreta i sogni, Pt. 1: No. 8, Panatiere o crudelissimo - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ac07f00b498425ad4fca16ef8cd31c07b24d9e46926bc1a18f43502305cf973. Chain 2 (Bitcoin): anchored in block 960354 (2026-07-31T05:48:18Z), 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/ES7892500308.
Gioseffo che interpreta i sogni, Pt. 1: No. 9, Testo cosi prospero all'uno - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95f47f501a618ad454819ac94123a23c1fa2a97490c108b822d569c027965e6f. Chain 2 (Bitcoin): anchored in block 960513 (2026-08-01T04:52:22Z), 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/ES7892500309.
Gioseffo che interpreta i sogni, Pt. 1: No. 10, Faraone ecco il dì, che di gigli e di rose - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38a1f843352dd22c92a496ed6285e720fc102a6afc4a8d493650e4e7298162ff. 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/ES7892500310.
Gioseffo che interpreta i sogni, Pt. 1: No. 11, Faraone fumino in lauta mensa - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53605686050ffc20f6522f65461abfe8ae7ef00d068a5be72f651f5f42a0671a. 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/ES7892500311.
Gioseffo che interpreta i sogni, Pt. 1: No. 12, Coppiere e faraone dolce suono di tromba giuliva - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb815bb60ce717dd63e1f46e9c27e7460cf91cbc4c5091558a2c59f31164ea3fc. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/ES7892500312.
Gioseffo che interpreta i sogni, Pt. 1: No. 13, Testo correa tutto sommerso in festa - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74fddbe1f80704b9aa35c5f176fb8448c5cd1450fbaf2a10c5030cd90df7888e. Chain 2 (Bitcoin): anchored in block 960506 (2026-08-01T03:50:58Z), 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/ES7892500313.
Gioseffo che interpreta i sogni, Pt. 1: No. 14, Gioseffo e quando mai potrò cessar di piangere? - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ea512cb340d480e7f9dcb964de283889e8189a9fbd9ac2ac8c975983a5d4b26. 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/ES7892500314.