John Levi is the name of several people including: John Levi (American football) (1898–1946), Arapaho Indian who played for the Haskell Indians John G. Levi, chairperson of the United States Legal S
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 0x331ab9fbdbaa140f0ed5e50f6728a7f7bb574fdf174ebbc20794e48a24515f09. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6a7424fa-8f58-4010-aa49-52c9cb043cc9.json and https://artists.proofprofile.net/proofs/artist/6a7424fa-8f58-4010-aa49-52c9cb043cc9.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
Padre Nuestro - Screwed & Chopped Hataproof Remix
AMDG (Screwed & Chopped Hataproof Remix)
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 0xc453a384d1da43503600f4f3468375cf19480d017466b68e8443b6e03d786561. Chain 2 (Bitcoin): anchored in block 960298 (2026-07-30T19:26:00Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTAY2517683 — a six-check JSON result.
Comin' Out Swinging - Screwed & Chopped Hataproof Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0d1dc1945490c3da279a3e89534863d5c2d5a4fd4e22dde70391352e4312ecd. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTAY2517684 — a six-check JSON result.
Wordplay - Screwed & Chopped Hataproof Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ee3539f7942e09f678bcf8d15b96865e42aac1127f00694083d14df2a1387e7. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTAY2517686 — a six-check JSON result.
Stompin' On Tha devil - Screwed & Chopped Hataproof Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fe09f372648b0f3cb391a5e818b9b5019d90f8d4cb22aa8996a253d74ae384b. Chain 2 (Bitcoin): anchored in block 957249 (2026-07-09T02:31:37Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTAY2517688 — a six-check JSON result.
Not The Same - Screwed & Chopped Hataproof Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83ba5ef82eddda3eae8eb6eb912207ff945f2a4e59d8f16b36cec8065cae4dd0. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTAY2517689 — a six-check JSON result.
Tapatio - Screwed & Chopped Hataproof Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x462898efd7bd69ab1f1022600f8d1bbdbcc7ae84fccc2d03db3bba7348e818ae. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTAY2517692 — a six-check JSON result.