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 0x5a591b8175f0d164b5ae5cffa276b2225b04601f744ab95afcebab7bb2b0ca40. Chain 2 (Bitcoin): anchored in block 953759 (2026-06-15T08:04:42Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b548c725-73aa-4eb7-9bea-282d9d898f85.json and https://artists.proofprofile.net/proofs/artist/b548c725-73aa-4eb7-9bea-282d9d898f85.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
A Lil Bit of Bass...A Whole Lotta Grace!
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 0xc042aeaf3c2087276de370146b1cbfb0437cb947b03f4bc122718402d355054a. 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/QZHN32158532.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe9d1c7be47537f7929768e4ea2e63e368372cee9a03d6bfb5196ce2ffa164d4. Chain 2 (Bitcoin): anchored in block 958907 (2026-07-20T19:05:51Z), 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/QZHN32158534.
Tex 2 Cali (Chopped & Screwed by DJ Ovadose)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d7344e98681f2faa574f89707d082a1f9132234c695794de03d04aa7c0cf713. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/QZMEM2353349.
Holy Smoke (Screwed & Chopped Hataproof Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc41fa5f23bb15bab5ccba3e4cad20ccbf696123d6d79e164b9e2b4a3b8ca1fd0. 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/QZZ7N2566524.
Deuces (Screwed & Chopped Hataproof Remix)
Comin' Out Swinging - Screwed & Chopped Hataproof Remix
AMDG (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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTAY2517684.
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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTAY2517686.
Stompin' On Tha devil - Screwed & Chopped Hataproof Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fe09f372648b0f3cb391a5e818b9b5019d90f8d4cb22aa8996a253d74ae384b. Chain 2 (Bitcoin): anchored in block 957253 (2026-07-09T03:08:40Z), 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/QZTAY2517688.
Not The Same - Screwed & Chopped Hataproof Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83ba5ef82eddda3eae8eb6eb912207ff945f2a4e59d8f16b36cec8065cae4dd0. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/QZTAY2517689.
Padre Nuestro - Screwed & Chopped Hataproof Remix
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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTAY2517683.
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
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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTAY2517692.