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 0xcb3d6e97907fd733672953c9b80a0d47490e06747e8e610a4c1b7a43ba9b8cf1. 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/3321aa44-0bff-411b-ab1e-04792ed57c0f.json and https://artists.proofprofile.net/proofs/artist/3321aa44-0bff-411b-ab1e-04792ed57c0f.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 0xb41e5600506d1aafc178da73196607a3ac7e4ab6c025c747c18278716eca00e9. 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/SE5751888866.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x438ae8881f1f3cd8e57d048bba2c4bb0b30b09783d14d272eb454e89e6155fd2. Chain 2 (Bitcoin): anchored in block 959008 (2026-07-21T13:14:05Z), 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/SE5751810206.
I will find you someday (Live from bedroom)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29d998582a006b3e8c314f8007412eca74348203d7cd660e4eb77f0403ed249b. 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/SE6I32083050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x271e4f8684c75500f987669bfd883f2e868bf5826c1fe654cabffbc6f7f2597a. 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/SE5BU2087322.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48f232fd9f2360ff8100aefe04aaf60d0fd5b2b8b55623cbf4d4a785387f9959. 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/SE5752099694.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5734c55df35db49c8e52dc70a440995a905b089fec5df2512b2d6331febe4ba3. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/SE5BU2031873.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad5d71d429d1c341e3b6a8e3abe2bd2c6d028e563d5955c26cb56a2e00371a16. 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/QZFZ62189682.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4fce85d0fc7cd0dfa6d2da487b0aa12d6b41b4dc100988afe86cb10a9130895. 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/QZES82123958.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26b7d37ffdd6acfb953caf16f36181f53f18aa53930e2d0995bde7ab7f0f2424. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/SE6XX2149094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x554420fa744285486f2d29a7ac047747a00b8834871f2881d6aa1ded8c399bf7. 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/SE6A91999266.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad2b6183385c7006226033c8bd191d244509f0e9d4bb1958d73826cc73df9523. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/SE5751904655.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bfad287368af1facf58b6914302d2966a8d31ff210a8619f8a975b6c255bdf1. Chain 2 (Bitcoin): anchored in block 958812 (2026-07-20T03:24:09Z), 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/SE5BU1974916.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4584770b91498a140b7b037dfea842edf0c873a35534d782f689a17d46de4f0d. Chain 2 (Bitcoin): anchored in block 956742 (2026-07-05T05:07:15Z), 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/SE6A91971080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x405c739f2f3fc009aeec572f1413755dd70772bbb87613db9276ef425fe2c97c. Chain 2 (Bitcoin): anchored in block 958996 (2026-07-21T10:57:35Z), 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/SE6SA2235342.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4b59fda3153169bd95e04d020961673bc8bd4cd9d2fd2f5abbd270f70db378b. Chain 2 (Bitcoin): anchored in block 958517 (2026-07-18T07:54:29Z), 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/SE5BU2310666.