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 0xc2f274dee43bcfc4d6e11e84b658cbd99d004c73721bdbe8a07efb18ca9e5fc3. 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/70872be9-2b8f-4d99-8a45-b072924c3c86.json and https://artists.proofprofile.net/proofs/artist/70872be9-2b8f-4d99-8a45-b072924c3c86.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
In una notte di chiaro di luna (In a Night of Moonlight) [Original Motion Picture Soundtrack]
In una notte di chiaro di luna (Colonna sonora originale del film)
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 0x78945310be470b998671af4f40fd9bd4a27e146ec00de9e4c28632f4e86b2398. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/ITZ040000530.
La guerra vista dalla luna (Operina musicale in un atto)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5d194d99c80a721223904d329e091f6f453d12ac46a622cfbca44970d26f094. 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/ITZ040000642.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b8d66ff3f33e2d919d900816deee8b130d49001b78c0701f2b6c7174c3e6935. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/ITZ040000647.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d7f2c2dde50d8fbcaaa35957bfbfda011678eb27739a8d5a82478866c25f2b9. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/ITZ040200225.
Danson metropoli - Canzoni di Paolo Conte (Deluxe Version)
Danson metropoli - Canzoni di Paolo Conte (Deluxe)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62f7685db9e163d3b22eedfeb4d130163fc565f396715892900f06803389f397. 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/ITZ040600125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bed583b7d23716ee130e37beb62fb3d9a55a3520f9e65c65e733cf565bc40cd. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/ITZ040600126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f89f31a38ed3c8d4d6e7fd2a9252f7a1449e0d4374bc818d6e2ace8db02d2c3. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/ITZ040600130.
Nino Rota l'amico magico (Bonus Track Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae5396d8a35f727c5882849897eb46f54902d6dfebd082195e18ad7ce188853d. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/ITZ040900035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf43865170c1b562626379e1a6480380ca412038830bf4f5516d7eea61d212eea. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/ITZ040900034.
Ai giochi addio - From "Romeo e Giulietta"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e12082469975f716882e24af46a40d6b3e94d8b71979649b83341c009594bad. Chain 2 (Bitcoin): anchored in block 957067 (2026-07-07T16:54:37Z), 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/ITZ040900033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8a9fa8f372646cfb09d94720372b5b1af76c3dd51c90b45702078aa7d03d542. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/ITZ040900038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e796b9b289aba9e9fd7bab5b34f9dfc8ee12b003882f0585636910f9d71f590. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/ITZ040900037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd92e2b2c70293fc4b3f37a4b2b96b16e20d145d16f1d6ac0daf0a98277e770c. Chain 2 (Bitcoin): anchored in block 960177 (2026-07-30T00:21:01Z), 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/ITZ040900040.
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
Lla rì lli rà - From "Le notti di Cabiria"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x108f207f1bdbf6edfc282acb1a31be4b356ab3757efb95aea74362b8c1e4f3e2. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/ITZ040900041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4199dc2f4a5a3ace72a4dfc663e14aa30a70aeba8c0a86f3f7c1b418fc98212. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/ITZ040900042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf67bb03400c3e1084bbf8b4a43578601779c6beb95df88dd35b02f458e1d0f62. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/ITZ040900045.
Lo struscio (Quel motivetto che mi piace tanto / la cucaracha / Stormy Weather): (from "amarcord")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95a1e1dd5eca194b566d4f747743484403b1e7176cabd1ba56e08184b415c311. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), 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/ITZ040900046.
La passerella di otto e mezzo - From "8 e 1/2"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c97407c4c7d651bef8db1a2f7afb21d04212e4967a65672fe3291a0d1bceed3. 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/ITZ040900039.
Zazzarazàz - Uno Spettacolo D'arte Varia (Deluxe)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d5ba6eeb46b7a0168d56e37bc811a229973d500f13780e9d06cf422a099d1d3. 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/ITZ040600133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46d5d7c382c14b84de547fb51d1429bf67178ec5395f1c83a8e8fbf6ab6780a0. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/FR6V80706808.