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 0x00e817c07d094ef78f5fd95d2b8b10705ab5eaafae72727e4ee364ca3d813d12. Chain 2 (Bitcoin): anchored in block 953895 (2026-06-16T05:46:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0ecad3d8-3da8-452f-ae90-55180c5e0ab6.json and https://artists.proofprofile.net/proofs/artist/0ecad3d8-3da8-452f-ae90-55180c5e0ab6.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Norma, Act I, Scene 2: Me protegge, me difende
Bellini: Norma (Critical Edition by Roger Parker)
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 0xeb68ff62f34765560eb65f172e543048612a28d79b01ddc7ac7f103215ec5a99. 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/QZDSS1900506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5b4c2e9091867e41bd68a7251309891f865881a6d4bb6fc3282621ba3b7d766. 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/QZDSS1900507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdc5aa0a4544a94d65abf60188eace7ce1c7bae2cb24642955d3dfe63555e87d. 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/QZDSS1900508.
Norma, Act II, Scene 8: Squilla il bronzo del Dio!
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf256b8229b32111881eeaad971dbf0172e76278a833464482f72dabec3be2b95. 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/QZDSS1900536.
Norma, Act I, Scene 1,: Ite sul colle, o Druidi
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64809b63675f5b81e8320968518d198dbe892f5eaba6510a7cdafaac7b4943a6. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/QZDSS1900502.
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
Norma, Act I, Scene 2: Odi?... I suoi riti
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c3aae606f74599ead7c90d7332e52453f2471c8ee782e7028b61c77c77e94f9. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/QZDSS1900505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc26672085da408e577ba9fb8eca5028d7fab72abbe175d6b930e1060e46e14b. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/QZDSS1900509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1877c6c0566dd415e361bda16544cbbbced2e3ad1ddd7941cbbef9c571c85de6. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/QZDSS1900510.
Norma, Act I, Scene 3: Ah! bello a me ritorna
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3d9a0951800af8d04f5e8adf5bc3198769e493e922c4b4d268dde2c5befc8aa. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/QZDSS1900511.
Norma, Act I, Scene 5: Vanne, si mi lascia, indegno
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea2abcc0bb272b96868089253b77abe739c070183ba407b31cfb27634756484c. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/QZDSS1900523.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb00e7f1861fd61c99b47eff165d3611b7162625d184044cbc1695625abf39f1. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/QZDSS1900532.
Norma, Act II, Scene 7: Guerrieri! a voi venirne
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62c85d9ef103503130d9d6730f8dcfe39baffd6e3e3907eaf3d56e834bf68b92. 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/QZDSS1900533.
Norma, Act II, Scene 7: Ah! del Tebro al giogo indegno
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7abb247ed4e2a8c3740211eab66933145e9a1965e048d1f1122e1d023346358. 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/QZDSS1900534.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc1670f6c2097e4f2ebf979304405481113affe375e45204feabdd16c1ff4d4c. Chain 2 (Bitcoin): anchored in block 960250 (2026-07-30T11:13:28Z), 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/QZDSS1900537.
Norma, Act II, Scene 8: Né compi il rito, o Norma
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf669c552e99efb37e2157c1f0be2e46c71013f1b8e4cb775e8298afa78eb87b. 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/QZDSS1900538.
Norma, Act II, Scene 8: Dammi quel ferro!
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x597cc465d821c6eddf4cd1b872459e0f490bd088344e1f06941f9f0ec513bfd1. 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/QZDSS1900541.
Norma, Act II, Scene 8: Qual cor tradisti, qual cor perdesti
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6dcd4bb558dd221be6c3a127556714a432984ece86971e4be322bd7aeb054fba. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/QZDSS1900542.
Norma, Act II, Scene 8: Norma!... deh! Norma! scolpati...
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d04f445fbfe21976cb6ae674d101141f1836f677a9961447546083aa62c97c6. 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/QZDSS1900543.
Norma, Act II, Scene 8: Deh! non volerli vittime
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4af191fd79bac83a5dbad42691771380c5893881eb8d558e1232e2d249fbc73e. 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/QZDSS1900544.