Justin David Blau (born January 9, 1991), better known by his stage name 3lau (stylized in all caps, pronounced "Blau"), is an American DJ and electronic dance music producer. Early life Justin David
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 0x5153e4b75ecfe1cb72005c4963ad4922f2536628bfee2c5be21e63a365839a69. 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/d1897417-9411-4ab5-abc7-dce0c0111fea.json and https://artists.proofprofile.net/proofs/artist/d1897417-9411-4ab5-abc7-dce0c0111fea.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 0x02859aa3bb2657033d79a8fbb638905666aa58f49860cc8d638a98ece85a7473. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/GBEWA2400230.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c84a2ac3482c17955ee9a132d6fc767b019a82b6b9b6227fc277022a9dfbf05. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/GBEWA2305040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c84a2ac3482c17955ee9a132d6fc767b019a82b6b9b6227fc277022a9dfbf05. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/GBEWA2305040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x988e864b07574d8e9d3035eefb385bea38953a38f397c37d30153b4585951f84. 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/GBEWA1906420.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f57ebedb82c7b28f94eef7389e93b366f887393eb8951e4552c1324be0ca073. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/GBEWA1905090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66ae399a41f6b64b195085b974f54df018172529b6e048daf8ebd3530a4a8c72. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/GBEWA1905790.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78ef0428537785adc398842645ffab7bf730b6d556313a1eafec8c6413f2e152. 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/GBEWA1905791.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba7fa02e1288586d25e21eb88334f167d35b437abbe477ca8d3275204e34a78a. 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/GBEWA1903970.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba7fa02e1288586d25e21eb88334f167d35b437abbe477ca8d3275204e34a78a. 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/GBEWA1903970.
Falling Fast (feat. GG Magree) - 3LAU Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fc9c808217b4dc5a1ce22d04e20668588e3e00cf280e34df344b098ce7a6e50. 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/GBEWA2300390.
Tokyo (feat. XIRA) - Seven Lions Remix (Mixed)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1e8f5606ede7a3d889e61a2a7ca235966f1a184faa58eabe5e02ef2cb26b1a0. 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/GBEWA2304624.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc23e5cca4128eafc8a42cd35cb371c881d59bc5cde6cb886eebf7ea428ac21fb. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/GBEWA2307048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x769986e2cf6729de965af711e1b2107fb8d828c540dc9000eec49d2b323368da. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USSM11607226.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x988e864b07574d8e9d3035eefb385bea38953a38f397c37d30153b4585951f84. 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/GBEWA1906420.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bdcfa814e0bbd88d5aaec16a30fbf847548e31b8075df9df4957b5e52bce393. 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/GBUM71401448.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x820594637a3daf02d51c2f852874391b4cc3b80c3ca555fcc56ee0c2323ed887. 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/NLF711906816.
Good Things Fall Apart (with Jon Bellion) [3LAU Remix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73bdc7c3931033d8764aba5cd841cc1e702d8f351c9a7051b6bffc00ba276076. 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/USUG12001770.
Falling Fast (feat. GG Magree) [3LAU Remix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fc9c808217b4dc5a1ce22d04e20668588e3e00cf280e34df344b098ce7a6e50. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/GBEWA2300390.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1375ea005bc16a5f245ad387005342eb95f532cce746cb4fe05a92123152f69. 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/QM24S2302411.