LTC may refer to: Organizations Lakeshore Technical College, Cleveland, Wisconsin, US Latino Theater Company, Los Angeles, California, US Licensed Trade Charity, UK Linear Technology Corporati
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 0xccbefcecb2cd20082a483826959b25fdfd9fb6e66ee26d1765d0bd23c83d4409. 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/84e61e55-4fcb-474e-ae05-f631052c939a.json and https://artists.proofprofile.net/proofs/artist/84e61e55-4fcb-474e-ae05-f631052c939a.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 0x46df80def4c6095b5237bcf244c0a76c2589655c91cb28f809c8da5923696aa7. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T00:01:46Z), 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/FR8T20900805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5416c000d71bc19ea081de26bbccaf840878e58e2da1b8f3e77bb561ea06552b. Chain 2 (Bitcoin): anchored in block 958980 (2026-07-21T07:04:12Z), 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/FR8T20901001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x226cfbde66b25aa118167e8d3d3d6a69291ac613cafc17c2ece02bc5af526ab4. Chain 2 (Bitcoin): anchored in block 958087 (2026-07-15T02:56:49Z), 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/FR8T20901202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc72a1ee7b360064c1b185fda5e1c81330730cd712257b437ddac212b6017e632. 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/FR8T20901203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6334f167628f9c4e2f3b77abd5dd5904e67bef336e8ed1237ebb539bc92aec4a. 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/FR8T20901205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80ce6637880e65be1ce098bf0e6e022cbfc7349cd5651ea685805d77e0b0c495. 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/FR8T20901302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51a54a02777acf7fe51439b673ebfe6ec664d8fffe4df6aa6a18651747f92413. Chain 2 (Bitcoin): anchored in block 958567 (2026-07-18T15:22:40Z), 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/FR8T20901704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x739508e94fd68d0ec8036ba413f5f1c9b3b2b8017df1f347e2de439be5817bd4. 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/FR8T20901401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x131b85cb2384f3718fba17be7b20ff81465104e07bab23ed5c876ab6bca42868. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T08:41:42Z), 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/FR8T20901402.
Héritage et destinée (Live France en Feu 2011)