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 0x1b35bfcec84fc81480ef27dad882c26290fb803600fa8359000ccc4397113da6. 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/8642d334-06e6-4574-a107-9cc0501af846.json and https://artists.proofprofile.net/proofs/artist/8642d334-06e6-4574-a107-9cc0501af846.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
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 0xc802b57127ea6b89f7923ba726ef36900921b337a4292601999c1a31005e2219. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/AUXN22212657 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0088900ca6874cf4f3e80793369c6d27f31bdf701e7339755ce0ce5ea90dd9bd. Chain 2 (Bitcoin): anchored in block 958756 (2026-07-19T16:12:29Z), 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/AUXN22212661 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d0471ac2553f418032bb13c300b02bec8e164796ca086d4351890fc69cfea39. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-16T22:37:47Z), 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/AUXN22212663 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b4d5c0064589600a5eed6752f5fedd5664c85b0b03dd7ef247285822ee4733e. Chain 2 (Bitcoin): anchored in block 957546 (2026-07-11T09:35:53Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AUXN22218691 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedb203c1b2ca41bd0ae667b7f42a7464cee52f42b468df83562089ecfa172bd3. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AUXN22218697 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf85e5982e8e37690b851c57fc9c6e44b6942c06f2b03ca6a4dc0181dc560864c. Chain 2 (Bitcoin): anchored in block 957898 (2026-07-13T19:28:48Z), 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/AUXN22218702 — a six-check JSON result.
Drill Remixes: TV and Movie Theme Covers
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb9bf0f147fedb2e7aab2b0e3d6ab1805a6ace12da0aeed327fc0154bda00e8b. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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/AUXN22227954 — a six-check JSON result.
Drill Remixes: TV and Movie Theme Covers, Vol. 3
Tokyo Drift (From "The Fast and The Furious") [Drill Remix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8fb9facade9e7996c9f31b5325846bfc6905bd1eace64029150a25fd5614848. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T12:00:27Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AUXN22232019 — a six-check JSON result.
Cantina Band (From "Star Wars") [Drill Remix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2acb53890fa1584ca253fe7eb69352c5ca58f17e94002c2a9a34265b7e732c9. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AUXN22232022 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1c69e75210e36b823f49402746625b170e517fbd82f0cec34a04938798d9dc0. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/AUXN22232027 — a six-check JSON result.
Drill Remixes: TV and Movie Theme Covers, Vol. 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69627cdaf4130d5140734a48cef40808c6ea9e697374d49dd42a5e9041de5a08. Chain 2 (Bitcoin): anchored in block 958058 (2026-07-14T20:20:34Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AUXN22232045 — a six-check JSON result.
Drill Remixes: TV and Movie Theme Covers, Vol. 4
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9c48e0b6976b03fb44cd5bf51ec95c8a04340e695c6dba84ba1d1d92f003349. Chain 2 (Bitcoin): anchored in block 959063 (2026-07-21T21:45:32Z), 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/AUXN22232336 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e872cf3e4c4e36c11308f892fd3faa01f3d5ed2133dfc768538f69acb0978d6. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/AUXN22278793 — a six-check JSON result.
Super Bowl 57 Halftime Show 2023 : Drill Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bab5391283e54938ddfc24c072cafd676f1d0eaf27a0fbc5207e6d8e7666602. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AUXN22292626 — a six-check JSON result.
Krusty Krab (Spongebob Squarepants Drill Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8fcaed5adfbe9161b7b38c4bd53cdbb8d5180f3fa45f09fd2a0e40d5a110b9e. Chain 2 (Bitcoin): anchored in block 958667 (2026-07-19T05:04:54Z), 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/GBWUL2380022 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e1242940b1cfbd0fbd386d234808cbeec7b801514a2da3e4d40643cdbc3a9ba. Chain 2 (Bitcoin): anchored in block 958541 (2026-07-18T11:37:54Z), 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/GBWUL2380189 — a six-check JSON result.
Fly Like You Do It Like You're High (Hot) [Drill Remix]
I'm Not Angry Anymore Well Sometimes I Am (I'm Not Angry Anymore) [Drill Remix]
Your Body Language Speaks to Me (Drill Remix)
Your Body Language Speaks to Me - Drill Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x969e0277baa8b6bce7c02fa2f1dbe20ed04790cebb49bd3f2cb0ae0bed9c218c. Chain 2 (Bitcoin): anchored in block 958996 (2026-07-21T10:57:35Z), 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/AUXN22414579 — a six-check JSON result.
I Got a Glock in My Rari (679 Drill Sped Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x600b16e85a3c47bcd899c98cffb5bf2f63ef41c97aebd7bb1dcdf0664f15a848. Chain 2 (Bitcoin): anchored in block 958908 (2026-07-20T16:28:12Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AUXN22507809 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8a1cb1c71a74c2b17be06c8f1b5759a38b10150455afc38d2f16b3ed3dc1844. Chain 2 (Bitcoin): anchored in block 958594 (2026-07-18T18:05:01Z), 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/AUXN22526829 — a six-check JSON result.