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 0xf5423c2ffd09232b2d398267314703404a63cbb0f730bbba81e0e176381643de. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7a5f4185-8833-49bf-b680-b4627addd92a.json and https://artists.proofprofile.net/proofs/artist/7a5f4185-8833-49bf-b680-b4627addd92a.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb8c3defa1562314d955448bae0dff5f29b97e855858b5a6e2dbc131c1770766. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/ITNUF0480303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44c830df1eaad4263d4f75cd7f54238a589d57591f4098b0b8b2ccfa5066ac8c. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/ITNUF0480304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x614ce5a606b9e688b0537d16bbbe5236c92786043078f40a2a22bbc2e1e23769. Chain 2 (Bitcoin): anchored in block 956745 (2026-07-05T05:33:35Z), 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/ITNUF0480305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0458ddd7540d9dc7f85a8fb34bd5f36a45485b1894944cad162a726c5eb23d33. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/ITNUF0480307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c7052240b60f115ed2ed2570dd563744f04fbf80213716ab5279b2be804ac7c. 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/ITNUF1080505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c0a2b7e902cac24c868303ea3d42aa562c37b51fcb9dfa937e29277e1b27e51. 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/ITNUF1080510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x939ff80d2e5cdc24bbc74484e8e2b900921c97e5fde741c5e890ceaa8c507c99. 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/ITNUF1080501.
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 0xff4308a0dd4a19577052fe991d39897f1714202470fd280049a0b860c3fa6a80. 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/ITNUF1080503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12b6356c70d268aff69ded86e351e009f3003b86877211d23d5bc2fb6cf759b8. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/ITNUF1080504.
Una Ferrari per due (Dal film TV "Purché finisca bene")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a034555b7ce5eb69c677789c7516cb8c6ddbe2d67c91bb2ccb5b6d10291a92c. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/FR6V82392915.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a034555b7ce5eb69c677789c7516cb8c6ddbe2d67c91bb2ccb5b6d10291a92c. Chain 2 (Bitcoin): anchored in block 958885 (2026-07-20T15:55:02Z), 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/FR6V82392915.
Una coppia modello (Colonna sonora Serie TV "Purché finisca bene")
Un marito di troppo (Colonna sonora della serie TV "Purché finisca bene")
Una villa per due (Colonna sonora della serie TV "Purché finisca bene")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d80dfe34f7784cdc791eb61c19b5e92ad191cc0d3896a255b2e3b66540d03af. Chain 2 (Bitcoin): anchored in block 956745 (2026-07-05T05:33:35Z), 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/FR6V82429298.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5330c2d32be959778206bd2beb7bdbd255ecf68b74e048561541c296035ade96. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/FR6V82429290.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ce4621d1dc65e3be6d410e83d09b67f064114507540b86094fa29ff7341f8a9. 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/FR6V82429292.
La tempesta (Colonna sonora della Serie TV "Purché finisca bene")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6732cf3401ee217dbe42d19a42701f5214867c7bb86b34cec1236ea8a18a9d6. 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/ITNUF1600002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3e7d6db7b44a87d0f97b9672385ea33e59deac8fa2ef350be9788753c121230. Chain 2 (Bitcoin): anchored in block 958861 (2026-07-20T10:02:52Z), 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/ITNUF2400007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddd0692172a3e0ba070a0db9b450bd91834e72dce97553d55b569bc1d65bd45b. 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/ITNUF2000002.
Those times are gone (Contemporary Dance Edition)
Vizita (Musiche originali dello spettacolo Teatrale)
De Rerum Natura: There Is not Planet B (Colonna sonora teatrale)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05b724ed369fafee73a52d854af38be87b2decb6a943299040d43f04e0562183. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/ITNUF2400082.
Lino Cannavacciuolo: Violin And Memories, Greatest Hits
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe25b5bb51223e55d0c7655b775a3217e91d8dfb52ce66f1dba241614fa8e3b67. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/ITNUF2500092.