Luca or LUCA may refer to: People and fictional characters Luca (masculine given name), including a list of people and fictional characters Luca (feminine given name), including a list of people
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 0x69cf51831a0ea1fb0086afcaaadb0218c3ed01cc962365bcbd16541d61edfee3. Chain 2 (Bitcoin): anchored in block 953772 (2026-06-15T10:33:29Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c98ff5ea-d1d6-4517-9613-f73b94a23e4b.json and https://artists.proofprofile.net/proofs/artist/c98ff5ea-d1d6-4517-9613-f73b94a23e4b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
The Vulture's Flock Will Feast on Itself
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 0xfc6f11372a40dedf63663d04b6bd97b6a1bf4dbfc299cd4c5b71ca95eb7ef269. 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/USHM82482889.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68d4d38d66a5de77d7acd2380e3084ada80cc53a9aa15631cc08427475c524cd. 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/USHM82482890.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f67b66b660877290fe5d8766122d7fb155fb39407a4eb6a393ba32e99b29dac. 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/USL4R2444291.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc6f11372a40dedf63663d04b6bd97b6a1bf4dbfc299cd4c5b71ca95eb7ef269. Chain 2 (Bitcoin): anchored in block 956637 (2026-07-04T10:56:23Z), 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/USHM82482889.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68d4d38d66a5de77d7acd2380e3084ada80cc53a9aa15631cc08427475c524cd. 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/USHM82482890.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc864f010f61e3ebcd6c1ad40ccc8995e89a68c2259917d88dc61f8bb11c9b151. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/USCGH2595891.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f67b66b660877290fe5d8766122d7fb155fb39407a4eb6a393ba32e99b29dac. 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/USL4R2444291.
I Slept with Someone in Fall Out Boy and All I Got Was This Stupid Song Written About Me