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 0xe27c677c9932cb7e33eff8ad994b782e23201e450b956198e1b89b8faf0e8373. 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/0f181d24-0cd8-412a-b7cf-4458907e17a4.json and https://artists.proofprofile.net/proofs/artist/0f181d24-0cd8-412a-b7cf-4458907e17a4.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 0x96d1e932abb27046e5d59f0e2aefcbb2b6b026724b46773acf4f4bb661c23bce. 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/AUMEV2205525.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff54ba423104a25f0448741ff5c2df2936eac9b591fc0c7daa7821890f043566. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/AUMEV2205526.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a4a1a0bcf9f471cf68af2b86188d9f5cd6dca04a47dbcb815a16014972071ce. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T14:38:07Z), 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/AUMEV2205527.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9083545f88dc9333b72488b83d4aba8f0043bf66d474d0b71f2b3e0e0d76996a. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T11:05:05Z), 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/AUMEV2205528.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa349136735b253b08aca71e52cdba372e6708d2c98d5efe1645252ddc908779b. Chain 2 (Bitcoin): anchored in block 958349 (2026-07-17T04:49:42Z), 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/AUMEV2205529.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88f14c92220da0a5930b9cf0ea9ef043f375914cc5c4da387238aa3375a9c871. 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/AUMEV2205530.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f62762d663d802ab87e9bec26fd4feed12dcc8c84459ddd0297f264871a4101. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/AUMEV2205531.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06fd1954569a114c0e11857b005909253795ee26209b5dfc235ed06b8b8d7cff. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T05:18:38Z), 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/AUMEV2205533.
Morbido Picchiettio Delle Gocce Di Pioggia
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5071cb9533718dd40b3823d303a9a9f7c3b8425371411722d89835782b2059b5. 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/AUMEV2205534.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x349affccbbf17a7b80c6c154f15cd0caf1970b0fd72a4fb7a61ecaeb9956d327. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/AUMEV2205535.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb704fdc0a7d9ecc9ed217a61714e97005f4d2b83aec3470be71313e62e6c54f2. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/AUMEV2205537.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3cb190b610a650c0fb9d443b145173c16c5051d68c363e9559e6219e563c9bd. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/AUMEV2205538.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbeb173a863739af4649558a1ecc50bccd5adc925b515685c2f0817a6ac661329. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), 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/AUMEV2205539.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd6b9b1ee8e277e29b572ff1500b7eddf34e4c9727cbc78fe946555c95f906c2. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/AUMEV2205540.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63db7dc468c741e6a76adb672c479509c20f1bcbba7bfae724cbb3329ea0b2af. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/AUMEV2205542.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8af62e7a803a8b32c827fad6518726228c2c606e6600f3a6b28e61b263c6d7bc. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/AUMEV2205544.
Suoni Rilassanti Della Pioggia Della Foresta
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfebef356a5a986be93f64c69b7512dee001e14809ae9810e18eeafcf7f74a43c. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/AUMEV2205547.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9646adf810d40003afb0c3b5feff2f20571cd2974ef56decf149a1fe23db3726. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/AUMEV2205549.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde86769ecd7097f30044b8ee742887590c4902c04eff0664b8ac4b00f906c4fc. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/AUMEV2205552.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f4b984737f32485e1779204c39a955f36dae78ad1e3162fa74f600c4222ba3c. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/AUMEV2205553.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa58fe88ad33ce4110a6149cedaa043af2ce393cf59739f094055e1d62414ad1c. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/AUMEV2205557.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf94593a87e496f6f967f3cdc4c1868219256482f5d7db9dc044d4fb8c6ce7c3a. 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/AUMEV2205559.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e76ca5d3fecdf4b20bac3d93cbfb0a83489fc9b5c7490601b128f7501a58bfa. Chain 2 (Bitcoin): anchored in block 958827 (2026-07-20T07:47:31Z), 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/AUMEV2205560.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cab3a12ef14ef928fbc0db82a839f9f2b70a1d5995183e43d7002d956231966. 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/AUMEV2205561.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6ae1a87eb27abab37488a2989e89d803f23793a0c3e928a7510eefb187d2b4c. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/AUMEV2205562.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5bd0a666e969b8bc13a519d7730b6c4ab3fa3d12178ba44989a617738d8c9ea. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/AUMEV2205563.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f4d29744231a99e050c9a0efc61a6aff2d1c85c337ff8f6492497af3c02c210. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/AUMEV2205564.