Lady Maisery are an English folk vocal harmony trio composed of Hannah James (vocals, piano accordion, clogs, foot percussion), Hazel Askew (vocals, melodeon, concertina, harp, bells) and Rowan Rheing
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 0x2c57c84eaf71c358133f830ab139277bb44586eee64f7cbfdff3d6985b5e7365. 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/7e57ac0d-fc98-4f4d-ae2c-72414db8579e.json and https://artists.proofprofile.net/proofs/artist/7e57ac0d-fc98-4f4d-ae2c-72414db8579e.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 0x9e352222da2d2e05b7f34af313aa2a0a732a7b3138796ba4871c74d27b3f8ff8. 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/UKQZG2200001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x604716753b350ea55b2cad67ba9c49b103a6e0903314a3e6f33d013a32216def. 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/UKQZG2200002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbdef78cfd362301cf33d9d77776c8b0fd48d336b65d2010d057c8ab398d1114. 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/UKQZG2200003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x581b1c1e743a2825000e233c0c01b1b76921d42afe9cd7d1a5dfa74dedba84fc. 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/UKQZG2200004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2981953b4f25cc26edb697408df0a385f48c40aeb43444b983c6f6852889656. 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/UKQZG2200005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c2f11433fd602bcac243da8cb9e9c6bda6ea60594553130139d174ce57d0f2d. 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/UKQZG2200010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x308a7cd6d887481e0cb3ad1b71d2d52c9816c9906afdd70c2301610a801dfd29. 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/UKQZG2200011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2743a946cbe1ad6cee162ef95fcdcda4021638ac276601c6ce2b91b03e7be14c. 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/UKQZG1800004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96f14747266d9a155ba5bcf9a0930f53e60508b63c16dcd7c35a0e3a9a21556d. 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/UKPJP1900001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb3f59e3954f6c523757cfe9d84fade6e3688dfe06cdb8c920d800bad8c47112. 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/UKPJP1900007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25520334f19c7d9b6dae65c75307e6142c482001beb0cb035773fb08d5be70a6. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-16T23:25:15Z), 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/UKPJP1900008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5af04ec453dba4bcf0618802cd4cf1a209f2e6e8192198acb31af60015af1a47. 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/UKPJP1900013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xace840894654bb02d6c76740f0a8f6a2dfa8f5c51fc20a634cf1d0fb17a8fbff. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-16T23:31:57Z), 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/UKPJP1900017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22193ea3e2833c20a0d931e6abb6a25fe68d64ecb04199972af514308e3e4be3. 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/GBXYY1600082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0274189490d392347553213874cd49d4bf00b8f1d3b2b9ad8ac3a19cd1dcae6. 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/GBXYY1600083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca0ee97c96c84c9b435259eeab5660aaa277de93c19fd93cee4a2a2d5eb2f3e7. 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/GBXYY1600084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76aecc0d328cbd19dacdd0adfe4da92a1c3405254a16392b78acb35208e88b0d. 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/GBXYY1600085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x576f7e30165feab06582349713893e0006472e807498c0f429a7bd6deebd1243. 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/GBXYY1600090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3a9282940582648d7a7a47bde7aad42075b7f251c481a8433a0f86fd27905e2. 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/GBXYY1600091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1be447dbd2c6dcab7fe3036358a21bd4267bb47b8686048589247ced16124bfb. 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/GBXYY1600092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e59f45cffae6a192bf14fa5ba9abd7de7627cfecff07a9f46a86f6e61dd287d. 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/GBXYY1300012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb05e48ef68be7defc653f79855bc0eb7696b6fc8864304a61b4d9313199705a4. 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/GBXYY1300019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x852720b0a0848df887dbecda15cf345efe5df277eec4a4dd57bbd6ec0aecdd17. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/GBXYY1300020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcea7c7ab2180b7cf4c1800ed8428d7e1cc854d0dfafa8b18357025977887cac5. 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/GBXYY1300022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ba16ff80a72a058e94b77e638bcb71dd34c70efcf050d34bdb84c1283ecd6bf. 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/GBXYY1300023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b6e78af9d0bac41d0dab6aeeae45bf2460d7206c9d0b510ca48fb5e958abea0. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), 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/GBXYY1100004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x453863d52e37366616ba39605368b1c11cc487313b34fc6947126fa4db688ce1. Chain 2 (Bitcoin): anchored in block 959152 (2026-07-22T19:00:37Z), 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/GBXYY1100012.