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 0x925b7f70350c3e51b65735c8033726f0c3b3852712a228261bef6cb3e2256578. 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/62736347-a493-4885-9345-6c32339762e9.json and https://artists.proofprofile.net/proofs/artist/62736347-a493-4885-9345-6c32339762e9.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 0x84a00594554c5aab20bb2cf05c25cd9ff3e6c403b20d6c67fb6e8072c41f0010. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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/TWP011840601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac7583aa5090264cc88f2b56b456de8b436d65ae1998e4be09f43f53c344f619. 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/TWP011840602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3183a6862bdac6fbedfa1d39217d2b33cc17b71be4f6e172c83609ed4b995d81. Chain 2 (Bitcoin): anchored in block 958349 (2026-07-17T02:28:59Z), 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/TWP011840605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9501f6e33d0a9987c39a431fabf46625e1a339887706f5c9462ddf08615b4dba. 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/TWAE32101388.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2be3ccd335bcdffa2581f85f032808543d2c1f69d62d1fedcc4b94b4a21ccca. 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/TWAE32101389.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc7e3d0cf6fa80fbe8b381a1fb92831b08a6f820f5adad9c9d51f9b6f53dc32c. Chain 2 (Bitcoin): anchored in block 958742 (2026-07-19T14:09:34Z), 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/TWAE32101390.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e7b52230953cf152ec40d40bc870b73ce7fea3164e2af2d3e559719605f1e24. 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/TWAE32101391.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1e31d0f1ed6e8836c8899695ef4f2b5a839898d8321bfdb7cfdf841731622e3. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/TWAE32101393.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ed5a90f5ee0bc9db24c32b9616532ae6c0aa691018980ff2f186079a67296f9. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/QM6MZ2431654.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd759f1e0bbb6a979b304eaef38f5be568a1756c8be6efe7f08d4e69d2fb0293f. 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/QM6N22428415.
She is a Dream Pop girl (Tsudio Studio Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39386feeb26afd05b202410db9a72bb665ed7ce4bd6ae8613bd47daa8270b2a6. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T08:14:15Z), 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/QMFMF2441794.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a55e158288b189f8b21be98f3fd7cf9b08e36c4fc23a421e51cc40dd295bc71. Chain 2 (Bitcoin): anchored in block 958870 (2026-07-20T11:19:23Z), 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/QM6N22572882.
In the End of the World (I Love You) [A_LIVE PASS Session]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa14c9d8c4db0871b514131c4204d1e3cbcfd34880975463a3a72cef38453a84b. Chain 2 (Bitcoin): anchored in block 958870 (2026-07-20T11:19:23Z), 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/QMDA62593041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa14c9d8c4db0871b514131c4204d1e3cbcfd34880975463a3a72cef38453a84b. Chain 2 (Bitcoin): anchored in block 958644 (2026-07-19T02:21:25Z), 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/QMDA62593041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x169915e4f107f871c604dded2d426985aa941210051ca875837edf4facf18855. 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/JPP302400348.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8642eee1d9f7c923c138d5d4b11acce1623fd88de04b432ca2524e4a744d17ff. 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/TWJ012300710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05aa648563de4cfc7da25064fcf5549e0c9fcdfdabb20769633bf1f893c66cac. 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/TWAE31902339.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d455d65c2615c1c69b80eec44d9f6878a389b9d0087e63a8504f81d5c928ac8. Chain 2 (Bitcoin): anchored in block 960362 (2026-07-31T06:58:00Z), 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/TWAE31902340.
You So (Youth Soul) - KYEJEOL Live Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a40831e38f9f6b6ffcd98177c0c4c8759eb77860db9a52728094f221f3a380a. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/KRMIM2028188.