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 0x1f15795a1e9839918270bf6c74cf3c8a95fa262e4e27971fc47ae68df8c3341f. Chain 2 (Bitcoin): anchored in block 953746 (2026-06-15T05:25:34Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a6ac30ae-646d-4c75-80da-cdd6871a30fb.json and https://artists.proofprofile.net/proofs/artist/a6ac30ae-646d-4c75-80da-cdd6871a30fb.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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 0x4138bd86573d8b2d4a0dd57257fbf2942f4a231b44770e848ac068bc35f37f40. 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/ITVU12400014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cb5453a77961a36f4e40757af286f10167eaa922d34c09f75a757917fd91221. 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/ITVU12400003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x825997be14d0be137d4c27e78ba4a895bb1b550812e58a97b82ab585a144e662. Chain 2 (Bitcoin): anchored in block 960463 (2026-07-31T20:42:35Z), 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/US38Y2406005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc00421c2086488adac83ec619bec3e7ce405eda255b58cb80e116b795f372e4. Chain 2 (Bitcoin): anchored in block 960163 (2026-07-29T23:20:38Z), 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/IT7LD2200617.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c9d25d138e1d2bda348047c176e6108ab18d9c01ab7692e81763e42078fa60f. Chain 2 (Bitcoin): anchored in block 960309 (2026-07-30T20:35:49Z), 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/ITXF82200001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7546bae1df00e50174de8dff3902ca72f60233f70b76b3e9eacbfa3be4a79900. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/ITIWE1900024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08ff5124c40a0fc964e49cbaec4734a0042c52666da9bf0108b3b1cce2de8544. 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/ITUM72000239.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbfedf301c681c86f477fc5d261d7ee0055327590194d2e39e3da296520e1bff. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/ITUM72000773.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe27a7e268c772079f6c500ac43da36b19881915c34e4577b6f4800f1adaa4939. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITUM72001361.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc8c6a9582d7f513e5ad3ee091019fcde7fa20077501d4f8c56efd028df1eb27. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/ITUM72000780.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x895ff3b1884b9f53fefccb45283fe332b2216734327677a17efcd8dc75e8ea59. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/ITUM72000781.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x446976bd3059256c1f28b7786bbb12ead1cd30f3d2fceff292ebcbb82855ecc0. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/ITUM72000338.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae20ad0bbeddb91bf5ba9360dc2f7ffb189f92b30058b518b2917cdbc4f2ff7e. 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/ITUM72000783.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a3543a0662c921a63d81bf5ddd7d369c7416a1bfe8fdcc9fcd6aaa326190833. 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/ITUM72000784.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6aff89ff17dabc15b4fc4de482fa60495e88552650c927ec284d7057197bbffd. 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/ITUM72000785.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b6e1f232caa7c7363fe0a04d2f576caf632e3b8830b57ac860d33038d53c384. 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/ITUM71901456.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b8b7bd689838ca6902b7aaac03e9e368292e08b9fbd38d3abc9800387ea5c37. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/ITUM72000772.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d3eeb7f5e6dc62df73f367f211b942f952dd3abcc5625c7526a61e45822e608. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/ITUM72000774.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc31802a1febd0223ab87666063b3e4d81096c458385ebad2d99bd2b8e8f988f. Chain 2 (Bitcoin): anchored in block 960099 (2026-07-29T11:30:20Z), 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/ITUM72000775.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce13f375f47d79e604cd7ca7ef7366787749be98ad312c3f782ad806d860dfb1. 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/ITUM72000571.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac583a92b792deb226463d7ebf65f06348986a441d9b4bee88e8919e724314bf. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITUM72000776.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01466b296ec9fd5d3d9b4befc29211b67914384c1b677bb48eabb0fca01a44a1. 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/ITUM72000777.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x540c92e90200533928e55569c1f16f2b6c1d5c90249ef6afa74d8f847bac8f00. Chain 2 (Bitcoin): anchored in block 959155 (2026-07-22T16:43:41Z), 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/ITUM72000778.
Non dirlo al mio capo, Vol. 2 (Colonna sonora originale della fiction TV)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x764080cebf85e08d79e244f48c9481ba3ae49523ae671bba099a3ad69d2c38ff. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR96X1814410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75e47d042999bdfe138be6bc4c08c383b98ce8ad7b33264ed4c84502e9e678fb. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR96X1814417.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18583cf58ba441bee98a78b33de8d76e5a470270e96b18aea5248dc8db81875d. 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/FR96X1814423.
Non dirlo al mio capo (Colonna sonora originale della fiction TV)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1969b5fd5e888658a0ecfb7e71cebb5d475d9ec34116d48e04280bc20e5bbb64. 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/FR59R1643573.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x786ab8bdda4fb8b1522933bd376792c9d63989c3f92bfd854c611f6214916410. 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/FR59R1643574.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x378f74393715c52697c803783df462de0866dedd443833fd89a3a6d585fb999b. 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/FR59R1643577.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2397534fc7a8979f95f167a331cce8dd0edcb562feb17c7858f0d7e8a663738a. 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/FR59R1643579.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74726f6f8ad842229f9d3a867ab5e59424c0700b6227c762cea0122eeb3b6617. 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/FR59R1643584.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa934cb4276b77e88d0c33290c42cc659ad5f69eea3e57b2a3408644101b2787b. 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/FR59R1643586.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf397259b29b2c376b6bfc0ed9e82a8fc086b1ffb21242177b731b9a97f6ccb2. 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/FR59R1643599.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ac0faac3ceb355ac49ea6467fd89a72fc30ef2cbf7619b2468bb699faa0051f. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR59R1643600.
Premio Eleonora Lavore 2014 (Le più belle voci d'Italia scelte da Elevision)