Lock up or Lock-up may refer to: Film and television Lock Up (1989 film), an American prison action film featuring Sylvester Stallone Lock Up (2020 film), an Indian Tamil-language thriller film Lo
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 0xb63ba04465d007b718603f648c4074a92f002574e12ee725b99c8ea6d6d3e575. 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/3942d922-a7c1-438d-86c6-4600d6a8962a.json and https://artists.proofprofile.net/proofs/artist/3942d922-a7c1-438d-86c6-4600d6a8962a.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 0x282631b74e254116ace9bc5aa7387b33dc8b6767a80b6a45e8a0d5075fdad879. Chain 2 (Bitcoin): anchored in block 956711 (2026-07-04T22:48:52Z), 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/DED839946001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdf9883dbc3e91ab376069311a700e18594878edbe249cb9cbaa235c8f41fce4. Chain 2 (Bitcoin): anchored in block 958415 (2026-07-17T12:50:13Z), 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/DED839946002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec5965648bd6b1c9306d9e2e38d9b20e20c9f497b1d5586da7962ffb998d58d6. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/DED830161601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24da8cf9fcb641e11547f9549a4497e95e3c565484cbafab82987c7d86d0dc21. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/DED830161602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3f34e7293f98fbbccbf9e1a6a7dca8ee59b0a56f8cf33173ee6a1a7301c47d9. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/DED830161603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ce2e8f31f24df543f9bb409ffce3ff8335fe89dd4b7512d63f24b0fe21585ab. Chain 2 (Bitcoin): anchored in block 959355 (2026-07-24T03:24:16Z), 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/DED830161604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13e13d521b5480add695e58bf05dd28c9ce33efb029a74f7e2ed532a8423905d. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T02:49:15Z), 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/DED830161605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeccf48fc4a30893e46c538cbe82a54fa333d6a6bb5f0b8aeaaace872bbb3ad11. 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/DED830161606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x112c6c5aabd71a0e32cf0c2bf2c2c77f72d21117c6e3e23f320c94ed5ea62869. Chain 2 (Bitcoin): anchored in block 958558 (2026-07-18T13:44:16Z), 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/DED830161607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11fecf66666d018b87b20636c03b59c95bbbbcebac98ac824a03b4846846f951. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/DED831100172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e7d55ebd775a3bb823c468192a762d640ed81f1624b6d19db4b42de0c3cf004. 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/DED831100173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x210c41b0d9ab2bea97b3999e291be3dd0da429f27872593dd74742f1c4161ee9. Chain 2 (Bitcoin): anchored in block 958561 (2026-07-18T14:22:01Z), 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/DED831100174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe096e42c13c68c95363bbf62fd6a517029be8589bc43280624588ab6ae39e35a. Chain 2 (Bitcoin): anchored in block 958726 (2026-07-19T11:47:20Z), 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/FR1PP1601080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e81098b2c7451f168745a4fd7bc3e5decf71509b36b29b71a38b1a49cd226b4. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/FR1PP2101140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce701306fce6282e81b3d12e127ea55997bc02ddf98ea009a1e6bb7d0997f94f. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/FR1PP2101150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf88faa97471bc9fc36f2aa2f84efb2062f890f5010cec6777c2dcb86534426e0. 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/FR1PP2101170.