Maria Gilhooley ( Knight), who records under the name Marry Waterson, is a singer, songwriter and visual artist. A member of the Waterson-Knight-Carthy family musical dynasty, Waterson is described as
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 0x1f642fe43ef1dc2810c2923e1d705be2f0005bc574314f187db69fbe0d21a83a. Chain 2 (Bitcoin): anchored in block 953648 (2026-06-14T15:20:52Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/44a3e06d-a2d7-4cd1-bc5b-30ed9916b8a7.json and https://artists.proofprofile.net/proofs/artist/44a3e06d-a2d7-4cd1-bc5b-30ed9916b8a7.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
The Days That Shaped Me (10th Anniversary Edition)
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 0x360730c09e22b09d59953014261cba0d1f902858c29bef7ac858589ba41a0c19. 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/GBBTF2300080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec390d141643efb736c5870e0051e6dc986362f325af63190aca33f5a83f52ee. Chain 2 (Bitcoin): anchored in block 958523 (2026-07-18T08:54:12Z), 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/GBBTF2300082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31ae7b4ed9a181ec3a9be584fef9af57cc9cf7fd93964d8d9fb2cb97c5ef2e79. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T16:14:34Z), 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/GBBTF2300083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42ed2e952c2a71765dac91ddd9b788355ccd41f77e3fdb5d6f1f2df26580df36. 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/GBP3D2400019.
Joy of Living – a Tribute to Ewan Maccoll
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc7b5564780e25301586061da52f7bd2b72425137ea6ca813ef4472114d60137. Chain 2 (Bitcoin): anchored in block 960427 (2026-07-31T15:59:18Z), 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/GBCEJ1500793.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42ed2e952c2a71765dac91ddd9b788355ccd41f77e3fdb5d6f1f2df26580df36. Chain 2 (Bitcoin): anchored in block 957025 (2026-07-07T10:59:31Z), 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/GBP3D2400019.