{"copyright_id":"0x2bde0673beeb9aa7cef63bdcea73fdbdfc02dbb3f06e4d0f2a25bbfdaadfc760","name":"Liepa Mondeikaite","registered_at":"2026-06-11T14:54:33Z","symbol":"NIM0055387","token_address":"0x76f5dc02d38cccac5fc90284c29de4816a3fdd86","type":"artist","uuid":"2a04996c-75c3-4e6d-9fa0-726b40cf9bfa"}
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 0x2bde0673beeb9aa7cef63bdcea73fdbdfc02dbb3f06e4d0f2a25bbfdaadfc760. 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/2a04996c-75c3-4e6d-9fa0-726b40cf9bfa.json and https://artists.proofprofile.net/proofs/artist/2a04996c-75c3-4e6d-9fa0-726b40cf9bfa.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 0xda2774274244954717c80520b50309239909f4527c06ecf22611b71ed3915da2. 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/QZNWW2419022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04ee44676cbffb17f8fbc50e657c26ba02e211f5f4079ea5747952c9725c8370. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/QZTB32368895.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb28de252490f90d0224fe43256d72c6ccf8db84f2406698216385310bc90e1d7. 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/QZMER2383518.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x345554d4a53301bfa5586f9c4a4d0f7c8b5dce60c782fb3f5195cbb572b2ed95. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/QZTB52248701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec3fb5fa7312e1c1fa934ce85cfce94d03fc4c1bf7ce5de12143b818b639a229. 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/QZTAX2253799.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x649d4a90539c8ad429c79ff7fe912ffab7f6910d525592618bbacec28e3a127a. 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/QZTAX2253775.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9812f731e8f334dd5b77fb9f44859d24952f32f9fb87508a3cc56e9d473dd591. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/QZTAX2254773.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e2baf1d40bbea67c3f9360c45a9ac68eeb43af566bcebf0166d530e08803bda. 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/QZTAX2253849.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d14caa40691cbe80ef73f1b6a8feae7fb6076c1b40b0167932c724f0bcecafe. Chain 2 (Bitcoin): anchored in block 960170 (2026-07-29T23:52:38Z), 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/QZTAX2248270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f8cc628e1b9987a6391562ffd08ca3c23e19b9588bce49c63e26fef8c60f479. 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/QZNWT2260850.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8a7284d1d8e6fecb545d70b4cb9ab04e83f8804b652448ab7352b5a2f333cca. 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/QZNWT2247988.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87fb2469ef6a4909466230e9db458977462c995bd523bdacf3e2feeac215e5b8. Chain 2 (Bitcoin): anchored in block 960160 (2026-07-29T22:48:59Z), 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/QZNWT2278944.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff1f4a58613948c9ad02f3eaec17223dc90e9a125c60214e75186c1f26d64868. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/QZNWT2278943.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x881ef9c533eeb41d10ef03fbee43a5981a586ed6659d00b89659cd3f29e42009. 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/QZNWT2247989.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdca5947ecae11c5e54c39e2bcffead13b6ae155045071a2cce87f6f152bf6803. 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/LTS032500001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b4759f1dec90e89a909a00d51deb661e5f6feafcb999943fc3df769fdcd6394. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/QZZ7U2416689.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ef990e5f8f03c2218ee94dbf4c09af49db6a6ef00ccf4b4ee2e71433940cd0b. 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/QZZ7M2416225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21cb1d3e78d73bcaf15e8548933a2b14c0d4d69d0cf5cc728e2f65de2bf1da7c. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/QZWFP2427956.