Lurch may refer to: Entertainment Lurch (The Addams Family), fictional butler in the 1960s American television series Lurch McDuck, fictional character, Scrooge McDuck's cousin, in the 1968 Disney st
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1a32d40676d062a97f4545be0a15709db6de4a8469e4be9b904ed5965d55a99. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/15b6e934-7f5b-4656-82ef-54b7baa8d194.json and https://artists.proofprofile.net/proofs/artist/15b6e934-7f5b-4656-82ef-54b7baa8d194.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1266653bd80ab403eeb8a2acc4454d16c5cbe11511c78359f0d378f4a2707c7c. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/GBZNK1701002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d2696686870e21194e032f0bfeade61eaef9830f80fbd0facdd1514c81a7e28. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/GBZNK2308001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9560799c77895c5334cdedfe26e6d6a6b115e8629d91ee91d99505a9f2a0bdfd. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/GBZNK2308002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92ec43769ab7d2e4bf7d45e168fa88b560d9610e5f8458f98e013bdc2cbc70b7. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/GBZNK2308004.
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 0xe8c334f4cca0403bb52ef4379149b1d0d42f6f2e56f8fed053e7e5f965c79868. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/NLCK42230028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x042c2b8cd1b9a69c2ae543711c4673d6fbc3b6fd003aee441a9ce40b4bdcd28f. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/NLCK42230027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x199a5a30c78412152634ec2736054ed58985179d8ad2127708bf197880f2850f. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/GB8KE2159675.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5205bdfa6b56ba66cebe19badbb9fd6815213562db93133efcca3bb536b99bb0. 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/GB8KE1854402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fefba3538bdcda808d575da99b95deffda1c19f9031722e1059e424707944b5. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/GBKQU1425651.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62bd3f92fbf0fc1b040d53c9ed86531eb8d3d1aa76013d49463375add782f361. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/GBKQU1324392.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f8f9c9c98be351a79b4342c8f5a01c255fe335a6f5fd9fcf5036b0a41ad20c5. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/GBKQU1480007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeba2ae488beddd0414f7ff6c224cd894065b58b19fe98a09db1f75c694a0c741. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/FR10S1867861.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70d102174b56d14335493b381b4ef7bd1a0c950977d10c995e9ae4a3fdc00979. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/GBKQU1814771.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb21880c9f90a49d82fa054a507478c7e796a06b72cb99bba990af28b627b352. Chain 2 (Bitcoin): anchored in block 960459 (2026-07-31T20:22:46Z), 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/GBKQU1814772.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc625239913a0b577b53c311d4774f05fca0b9a3adf6eea7f1a52256b33f73438. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/GBNSK1500176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0c89b42cf58cf09f071b32ec136f31ab88f1f433470350f41c2c96cfeba2498. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/GBZNK1502001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ccaaa2377ce712e2fc88f42bed9eb017de0da27fa80b6212602985da1de787a. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/GBLV61418080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fed1b75241ac8412663bb8a18e94e9cbfacc8a64564bd2312cf4925c2e58f75. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/GB8KE1356611.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x205ea312b98d5217862dfff9f31b207043e1a000d431b458b3e4628c1e33fe31. 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/GB8KE1356612.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x493b2c9f2e5a3ef086ba4a1cee5b1947bf4a8723102f553eb1b7c9f2a8ddde53. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/GB8KE1356607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x634db2552ec3f064131ae3091a6c377dd1f5ae89283a3bbe4a21e7bfdfee8090. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/GBKQU1441555.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb4e4db330797c10d7b7ba4d577dc2f9343ee6e36d4175532f692806b27a0b0d. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/GBKQU1441556.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f0c38d50bfedfdf0c0c558d556d83cac17a420b0e10ddf61510931df61aede6. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/GBKQU1441557.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x807b65c7903b7264cf83d298ffe1462c659b023cf90a364178e73f968c96cf11. Chain 2 (Bitcoin): anchored in block 960300 (2026-07-30T19:42:40Z), 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/GBKQU1441558.