Sean Lock (22 April 1963 – 16 August 2021) was an English comedian and actor. He began his comedy career as a stand-up comedian. In 2000, Lock won the British Comedy Award, in the category of Best Liv
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 0x9bef79739f35bd8ae5511bfc1f74c963a4510d1780172e9d655bd1fef76aeab5. 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/5c9259e1-5330-4045-96a3-df7700301bbf.json and https://artists.proofprofile.net/proofs/artist/5c9259e1-5330-4045-96a3-df7700301bbf.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 0xed09a4480a263de9707e69647387bc241202fdf0c8925479efee11aa7fd56dda. 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/UK5BC1700168.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e74da2d1b3760d488449017c9cfab0ec00b7d668ad466ce9ffc2cb986a19dfb. 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/UK5BC1700169.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa9da1ac2544c968b21be4932bb9a990427741eedd418d45da90d241e2a515fa. 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/UK5BC1700172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08635c3500caf554a43ad32909530d0c871767930f716c4b873fe06045e524c5. 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/UK5BC1700174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe97f35bd699fd3107b96b045f4c0bfb371b5ebf782e5ab3fb2c9a3250a38ac0b. 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/UK5BC1700243.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c66d6de95ad47fc14a73f015c9cfb8ed0bdd3d322a78ca58b5d3865fc24572a. Chain 2 (Bitcoin): anchored in block 957759 (2026-07-12T21:46:51Z), 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/UK5BC1800122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x314041906557383578dcbc408c3e663de2f6e5e95c2f3d35e197bf4e34751548. 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/UK5BC1800123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x110c0122c0572bd699db8737925386fab092ced1045f2728384a84697eb314e1. Chain 2 (Bitcoin): anchored in block 957759 (2026-07-12T21:46:51Z), 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/UK5BC1800124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb1724ce0b7bd197b213352b4882c8057acb74a3ef7834cd84d237c3f5e9e235. Chain 2 (Bitcoin): anchored in block 957763 (2026-07-12T22:01:25Z), 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/UK5BC1800125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91e2f63d5d455a45bbf428167e72ef70e2c0a64c3b1ef82b85830e6333788619. Chain 2 (Bitcoin): anchored in block 958169 (2026-07-15T16:16:18Z), 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/UK5BC1800126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54f7f3cca2a5a2abc547429d27c6c13b305c22c78bad2ee0c5ed542741efbc69. Chain 2 (Bitcoin): anchored in block 957759 (2026-07-12T21:46:51Z), 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/UK5BC1800127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6caa5d6f4219d5c08809da1b77313822f3cd4d891353772de00efea388cc80a2. 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/UK5BC1800128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3f43c69f0427fd983a827258a93e8b651fe40083bf6afabafb1d0c5be0dbc6f. 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/UK5BC1800129.