{"copyright_id":"0xbb0405ff2b270ee0a7240f233f2a56fae4b81bd0b3d22c1bf97c59cfda9c151f","name":"Bigg Frankii","registered_at":"2026-06-12T14:12:43Z","symbol":"NIM0321913","token_address":"0xb28513f4848a8ba315f9fec196e0872bcace1f69","type":"artist","uuid":"fa388ded-9cca-4cae-b5fb-ccd407faecee"}
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 0xbb0405ff2b270ee0a7240f233f2a56fae4b81bd0b3d22c1bf97c59cfda9c151f. 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/fa388ded-9cca-4cae-b5fb-ccd407faecee.json and https://artists.proofprofile.net/proofs/artist/fa388ded-9cca-4cae-b5fb-ccd407faecee.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 0xa0c5e2c2016422b540eb14769dbb8c08323887ff220d2b5044fa0d73e4022b86. Chain 2 (Bitcoin): anchored in block 958415 (2026-07-17T12:50:13Z), 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/QMPKX1831195.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x822542e96cd8b0b776ff2054b43c8e657cb4b4f052f64cf9d8c55388bb7a0fdd. 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/QMPKX1831199.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbde2bead3a500da205941a64584cc600af43052cd2623677b8384c10cad9a1fc. 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/QMPKX1831201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5514ff02089cdc894ca3da381702b206df47963332bec810b3464f5ec0bbe5cd. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/QZHNC1940326.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8183fd0ca9eaa9ef78040bb25fda677bb392d3ab3d720d8c63d47b736101c6ef. 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/QZHN52082532.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e535aa23b4be6c4f894cec898d8439a0172e9c1e681945aa68d89d6b2bebebd. Chain 2 (Bitcoin): anchored in block 958104 (2026-07-15T05:34:05Z), 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/QZDA82185296.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbaac52f650cef9d779965596a2eea3d4be3479d657f8b6298e9127dce3150d99. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T14:57:46Z), 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/QZK6P2181424.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0687fceb0db737155b4e9a5d52095fdbe2af813da2bcb31d5f99a6d75f97103. Chain 2 (Bitcoin): anchored in block 958362 (2026-07-17T04:32:48Z), 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/QZK6J2181221.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90ba396d16a7d76788ab17374a9c82894d661264fd2cebaccb293160fcdd172c. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QZNWX2130964.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35467aacf796581f31b8c5accbf8c1139cf0c798a02f1045f94c98c4d6773e0f. 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/QZFZ72270062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1be0ca3fd2430288ff67e33778cb968a97b114b1b52cbbdf7b83f08148c7d3f0. Chain 2 (Bitcoin): anchored in block 958721 (2026-07-19T11:02:33Z), 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/FRX202277120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ccc8fc64d52e97cd7452224c71b29ccda659b6343687557342084605ad10a52. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T17:07:29Z), 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/QZK6L2225854.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fec8025f0deb1df6a94a9e67c67894b375d13f9f30174f030591392df158502. 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/FRX872283833.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea7800c3d01de4f47fcca6ea0ff488799c3be4c96a1aa4b081e4c2bce759ac15. 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/FRX872283836.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8f74e8a4eb845b10a085cced8c4ae7551506d5ec4c365223237891e543fb70a. 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/FRX872283837.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb9c72b8b2a314e308b1ce717ca01cd62def420586bc4ef90a1733f5371fab41. Chain 2 (Bitcoin): anchored in block 958720 (2026-07-19T10:53:46Z), 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/QZTBA2372801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x911be9fb23b886a579acf0d1b7d59c728fcdc6b8541b2e98c92b22ba7d3695ec. Chain 2 (Bitcoin): anchored in block 958476 (2026-07-18T01:26:56Z), 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/GX5MX2546798.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x158349cee4a10816566cb26a5257db0da721c716fd8f99c7a7521c8f6361dd97. 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/SE6XW2589493.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3f8ec8f55066fb7f512d7791b733f9949c05caf3fa9d2c371a1c19f8e4e218b. Chain 2 (Bitcoin): anchored in block 958832 (2026-07-20T08:26:03Z), 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/SE6SA2598910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ca0eb8fe3bb54b3e0af9d147bb6bfb481d75cff95249c05406368a993587394. 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/QZWFE2315316.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b68a60baa0e110e003bf55795f846add48d90f3e66d5630b700ed1554690d33. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/NLRD52024495.