{"copyright_id":"0x4cfa7b0c69df042504fddf9726fadfe502fc3bacf5b1fdb3bb72198ff24dd8cf","name":"La Melodix","registered_at":"2026-06-14T14:11:20Z","symbol":"NIM0477574","token_address":"0x7eecc989d6d2ead8dc7d47c78cdbfd852f8f4e9c","type":"artist","uuid":"5bfb92bd-d6b3-45d1-b162-1a06dada1f9f"}
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 0x4cfa7b0c69df042504fddf9726fadfe502fc3bacf5b1fdb3bb72198ff24dd8cf. Chain 2 (Bitcoin): anchored in block 953674 (2026-06-14T19:07:16Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5bfb92bd-d6b3-45d1-b162-1a06dada1f9f.json and https://artists.proofprofile.net/proofs/artist/5bfb92bd-d6b3-45d1-b162-1a06dada1f9f.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 0x9dae19f1f70e2600d2cc48bc734805007518e56dce37d97feaaecbdde1d7463d. 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/QZHN82560386.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x807f268b140cd63b37038504eb20d4f7fa32be9f8b58c51e329f1cdde6c6f4b1. Chain 2 (Bitcoin): anchored in block 957770 (2026-07-12T23:17:00Z), 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/QZHN82552372.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d33cae865340ae46975752f4c5f6411d8053ea4e441a49bda61fb7fbd22ef69. 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/QZHN82551055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63dbcefd66b182d4b65db45672e05b5c34d3c6a2d0a7d8da02b2311acaffaa13. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/QZHN82560392.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x019bcf28f25a87e662025c1f32c17cb005f4ce844e4ae9b2e963a63ea7f64dbd. Chain 2 (Bitcoin): anchored in block 957770 (2026-07-12T23:17:00Z), 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/QZHN82560395.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cb5f6b253bd3bb2857c0efdc69ba5fdff0249b17b3b6b41bc4e3c98ef52c104. Chain 2 (Bitcoin): anchored in block 957774 (2026-07-12T23:51:20Z), 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/QZHN82552373.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x788b11f7ad37132341a403c750f7b89c0c5722e3d055dfad963f0b5cc877c86e. Chain 2 (Bitcoin): anchored in block 957771 (2026-07-12T23:27:28Z), 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/QZHN82558916.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d88d8997569c9e706d3db11b0c1d8297766d2090c956d763174ad54817684e3. Chain 2 (Bitcoin): anchored in block 958095 (2026-07-15T04:30:08Z), 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/QZHN82560396.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d55043741c96b47b1ca79f6ed21fbda9d7691a9bc9c621324dd7fe9acaad3f7. Chain 2 (Bitcoin): anchored in block 957771 (2026-07-12T23:27:28Z), 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/QZHN82552377.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc1c6aaeb5e4d9043eccf5150d7211aa25ecfbf8e3a268d6ac4eaf29ebc22188. Chain 2 (Bitcoin): anchored in block 957774 (2026-07-12T23:51:20Z), 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/QZHN82552376.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f9ab956bbd9500e43cd78b2babeb869e3aa5353f0f735ac2c805440b5c13592. Chain 2 (Bitcoin): anchored in block 958095 (2026-07-15T04:30:08Z), 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/QZHNC2587378.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dc84356af46df20c6dabadcd0414d4fa5532343dbd97f6049267b67a062f0cc. Chain 2 (Bitcoin): anchored in block 958115 (2026-07-15T07:27:09Z), 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/QZHNC2587421.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e72de6f56e4b4e79011bc265b7f1ad76a700da137f5778fc76b0ae510716e7e. Chain 2 (Bitcoin): anchored in block 958369 (2026-07-17T05:20:29Z), 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/QZK6Q2534593.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8de6681a5aa57ac7dba7c2f4ad887cdc91d2666933dad9f70aa8c277965d89ff. Chain 2 (Bitcoin): anchored in block 958329 (2026-07-16T21:48:38Z), 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/QZK6Q2534592.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01988ad47ab7f0d28a6bac72e8ac25b60d8490587b335dabe5d50c662fffa315. 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/QZK6Q2533191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf2f940f9d114f4f8d4275df77ef811454b00936b3fde9e7d890248884e0298c. Chain 2 (Bitcoin): anchored in block 958523 (2026-07-18T08:54:12Z), 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/QZK6Q2537801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3efebb401df86037cac1a681b1756994d5e0b3c40086ffdefa305744c83993c. 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/QZK6Q2534602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c4e286c3024b87214c2c93814c644c8fe868d1f56013920c98b63d171151449. Chain 2 (Bitcoin): anchored in block 958582 (2026-07-18T16:47:25Z), 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/QZK6Q2534600.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1257615066c7aee2eb05434a49ec57df4c38a592670ebaa4e233433986386f72. Chain 2 (Bitcoin): anchored in block 959132 (2026-07-22T13:20:46Z), 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/QZK6Q2534607.