L3, L03, L.3 or L-3 may refer to: In arts and media Live, Loud & Local, a show launched by band The Matches in the Oakland, California region Leprechaun 3, a film L3-37, a droid in Solo: A Star Wa
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 0x856a9ccbefebee742bac190fa1fca36c3ade145503f7b8ed5b90412658c6890b. 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/d48df5f5-bfd4-4ec9-8ad0-269e6a59adbe.json and https://artists.proofprofile.net/proofs/artist/d48df5f5-bfd4-4ec9-8ad0-269e6a59adbe.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 0x35ee8b990108e285d111c2ea1f55a745da704e802cc18f9a36a04fbd12ac7170. 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/QMBZ92029371.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddb3a96218c84a671cb69a8cace9d44e9d000222f30bd02d2728dba6345653f9. 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/QZWFE2304741.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cb2453aec0498cd857883c97642cd1a14aec77927f9813cb5e12fbb02d0a9f2. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/QZFZ22138019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcea905c8cbe4ff5b72ff25db84e78160844468e0faf53fbbe12b47946a1370d. 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/QZBRF1860841.
Pattern Chanel (Essie Gang, Octavian, J Rick, Michael Phantom, L3) Feat. Sq Diesel
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f9bf905aebf26628c7b3eb75f78689e74b58ab39970ee765cd05ed401b7e32e. 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/QMBZ91998129.