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 0x4a7d1c15d2f1f3285b4140f42d4f30fc25c35c4292c72e53a0f349207d97ef05. 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/df05a46c-231f-45a7-9c7d-ebee35a0b7ac.json and https://artists.proofprofile.net/proofs/artist/df05a46c-231f-45a7-9c7d-ebee35a0b7ac.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 0x35be9c3e98bfd2e931b1a81b6bb4302c11040b13fffc9b3a15ef5d4b9ae6d14a. 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/JPF650700147.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b6ef334691dc63afd0b88ab51c8c40bd16a0fcde4318bd26cc72d42d7cd2e13. Chain 2 (Bitcoin): anchored in block 958355 (2026-07-17T03:11:50Z), 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/JPF650700148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ab92d47e699cf3495d9ea92bcbf58aad964c34659fb3b1afb7cc0a9e0bd0f2e. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/JPF650700152.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69710a84ce105cf8264965588b07563edf990f666fb04c405f0fe20576a529a8. 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/JPF650700154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x163f81094047da10bb2c4c8841ceccbdd10a3528d5c86897c23b3ba8abbf783d. 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/JPF650700214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f93b64f51cdd49be3c10d784be4dfb11cd2fc33c253273df11ff7de7073316c. 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/JPF650700257.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x392a811fcd20d2cc2acb9ca17b771d567fdc200436fee332a0047fb3564da9e9. Chain 2 (Bitcoin): anchored in block 958501 (2026-07-18T05:33:04Z), 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/JPF650700259.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d02d2a940a1203cf18536461cb1c5861b16242206a2eda69f7048410884d5b3. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/JPF650700264.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda67f8b4d105669c5e0a8c9b0c597a5b9ccc30ac3be0236cd78e0f8c752400c2. Chain 2 (Bitcoin): anchored in block 958410 (2026-07-17T12:18:07Z), 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/JPF650700010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda44ef58020eeed57f937b38bfc90bc241504e700729947caf5c93692f98a8f2. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:42:17Z), 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/JPF650700012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbb07c92472d84888c194892961df3d941665ef26756a5509e9783a27d9912d9. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T03:03:40Z), 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/JPF650700014.
GET THE GLORY-2000-(Take From RESPECT VOLUME ONE)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96b8224ab1506df69300fa059e727a3bf477ba9edc52b7069173ef5677ffb9dd. Chain 2 (Bitcoin): anchored in block 958501 (2026-07-18T05:33:04Z), 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/JPF650700141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7316ec338dec3f4e64fc1ec47ec9628c6f91e9a5829ad6b815c092f9182273f8. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/JPF650700145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9690f826839712882af66eefabf156a6dfab8695127a91f9fb33479bf71d263. 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/JPF650700163.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6dc4ba3f58263637d80dc8288bf52b8eb5a0bc0ba279a96c6075d4b1f705a438. Chain 2 (Bitcoin): anchored in block 957752 (2026-07-12T20:53:32Z), 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/JPF650700164.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd6c32670c2f37c38bb975ad99d90f858c7c55f0fc4a7db599844e08e01261d5. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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/JPF650700153.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1072e7d71951464d27c713628600f757c27e9b69154eae300efe0e906d5b8314. Chain 2 (Bitcoin): anchored in block 959061 (2026-07-22T00:12:47Z), 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/JPF650700213.