{"copyright_id":"0x5e35a6db11668e878cdc2da795d6644777beaf1936f5e080ecbdd33bce7476b4","name":"Orquesta del Teatro Real, Madrid","registered_at":"2026-06-14T04:43:48Z","symbol":"NIM0342211","token_address":"0x516cf8b0cdbebdfcaaefa429bd163bea4ac79360","type":"artist","uuid":"02bf06ee-093d-4c2d-b56b-a4251afaf066"}
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 0x5e35a6db11668e878cdc2da795d6644777beaf1936f5e080ecbdd33bce7476b4. Chain 2 (Bitcoin): anchored in block 953588 (2026-06-14T04:52:46Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/02bf06ee-093d-4c2d-b56b-a4251afaf066.json and https://artists.proofprofile.net/proofs/artist/02bf06ee-093d-4c2d-b56b-a4251afaf066.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
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 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 0x47cf6eacff22f58c0ede2990782af7458142e93d3872dcbfd2635c3733995782. Chain 2 (Bitcoin): anchored in block 960185 (2026-07-30T01:32:48Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZDSS1900501 — a six-check JSON result.
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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZDSS1900502 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7ebb2e63f46d968c6d06224fd843fb4183c239d96200559b6b1ec423399d35f. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZDSS1900503 — a six-check JSON result.
Norma, Act I, Scene 2: Meco all'altar di Venere
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0496b7042ec9afef6d03c712fb2aba1510bc62c08a88d393d154891b78e5e0f2. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZDSS1900504 — a six-check JSON result.
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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZDSS1900505 — a six-check JSON result.
Norma, Act I, Scene 2: Me protegge, me difende
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb68ff62f34765560eb65f172e543048612a28d79b01ddc7ac7f103215ec5a99. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZDSS1900506 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5b4c2e9091867e41bd68a7251309891f865881a6d4bb6fc3282621ba3b7d766. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZDSS1900507 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdc5aa0a4544a94d65abf60188eace7ce1c7bae2cb24642955d3dfe63555e87d. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZDSS1900508 — a six-check JSON result.
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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZDSS1900509 — a six-check JSON result.
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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZDSS1900510 — a six-check JSON result.
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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZDSS1900511 — a six-check JSON result.
Norma, Act I, Scene 4: Sgombra è la sacra selva
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94bca5924d29a87437add3a60938f0da382140c5601f6925257b0f43520a9157. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZDSS1900512 — a six-check JSON result.
Norma, Act I, Scene 4: Eccola! va, mi lascia
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x620261525540d40cb5af266bfced19aad96cd3e76150735f1fd6f552a3d6909e. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZDSS1900513 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21c4fd794f4c15ee0b41fd232d84a35289d5f6c4c9890268519a7367b513bedb. Chain 2 (Bitcoin): anchored in block 960296 (2026-07-30T19:11:09Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZDSS1900514 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x293940f73e131256447d7a94cc174485ad0b173d685187cb29166f82963ae574. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZDSS1900515 — a six-check JSON result.
Norma, Act I, Scene 5: Vanne, e li cela entrambi
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81a693403daf0f34bff9646e7a9e57554476d71acc5360a5387a035cc66b825c. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZDSS1900516 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43ae0084feb5c8d22cc6ac515a9c1bb3ca3f6fc44cb429b154674f50d908ed28. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZDSS1900517 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72dd2aae69f1b1b381ab9a18b6056772e17bc76c47a574d1e9a1e6fcb6ad4f88. Chain 2 (Bitcoin): anchored in block 960340 (2026-07-31T03:15:04Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZDSS1900518 — a six-check JSON result.
Norma, Act I, Scene 5: Ah! sì, fa core e abbracciami
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7dbc8764032ed17f5730516a3eff58efeaec879d8ec63a6d6fec8c47a7c22e2. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZDSS1900519 — a six-check JSON result.
Norma, Act I, Scene 5: Ma dì... l'amato giovane
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e1941e47d77ea7568d1f64b5d9be827bd762ba3d350f37cab846c37bfc8613a. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZDSS1900520 — a six-check JSON result.