Ricky Lascaze (born November 23, 1992) is an American Hip-Hop DJ and producer from Brooklyn, New York who records under the name DJ Ezasscul. For a brief period of time he was a member of the rap grou
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 0xf9acb28a8ed8b3524996214217d7f64be510281ed18c1c1132bb34d64a492082. 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/824ad955-affc-423b-82d3-172c6460a93f.json and https://artists.proofprofile.net/proofs/artist/824ad955-affc-423b-82d3-172c6460a93f.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 0xfc6ac0ba15c4e47ef1f23db2c39dfdcf8000ce2cfb9547e91c08ff0100cc797b. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/USA8Y1010240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0922413f1bb804a419d04fa8d5832134edd27e2fc8ffff26dcd7f7476d3839f7. 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/USA8Y1010243.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fea56fcf3ba23f619cd685aa85bb3235b6b4509d3eb3a71aca665a38cbf6bbc. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/USA8Y1010248.
Jazz Meditation 2: The Prequel (Reissue)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05ee93e85ed3ddc7359accfb4e0a2bad567d950711dabb8b6d9f952127991951. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/USA8Y1110220.
Jazz Meditation 3 : The Final Installment
Eternal Peace Pt. 2 (Nujabes Tribute) (feat. DJ Sorama)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83dce2169fec8a994d6f435f906d18143b442b57f45cffa0981320605d24f4fe. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/USA8Y1110267.
Jazz Meditation Trilogy (Deluxe Edition)
Time Passes (Instrumental) - DJ Ezasscul
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f259d5d393d10ebba5f63bb8cdd3fa9c7831cba9eb99f1c8a44ac5e29f8b938. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/USQY51285965.
Latitude (Nujabes Remake - Bonus) - DJ Ezasscul
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f34fb01366bfb5d6f4438b287ba17d7b335e7b3dcafaa6c77afffc5556c1a4b. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/USQY51285990.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe24ce9a6dc97d7b9913f10de8244a6431b945dad31bb87739c89f6deeee1c815. Chain 2 (Bitcoin): anchored in block 957661 (2026-07-12T05:37:10Z), 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/USA8Y1200222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x467d7e8d2de461f9f58f53892d3be5db8bd0ccf703cc722968c5fbdbab5d9ee0. Chain 2 (Bitcoin): anchored in block 958969 (2026-07-21T04:58:13Z), 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/USA8Y1010109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85274cd029780085bb212944e2b1b090d2a25d01167a2dad9c520149a1a8f21b. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), 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/USA8Y1010110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02da5237cb5525329a38d36174a79c99ea13563eee090856466e1c23a9d637cc. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), 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/USA8Y1110318.
Jazz Meditation 3 : The Final Installment (Reissue)
Jazz Meditation 3: The Final Installment
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20f1ff2ebb663270432a50b6521ead84740e628b321b1faff9ba9060e77943fe. 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/USA8Y1010175.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x962f7b86abe99e57b7f1a095eb0ff9955d367e89b3ff793efd8639fd346d5eee. Chain 2 (Bitcoin): anchored in block 960497 (2026-08-01T02:22:04Z), 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/USA8Y1010182.
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