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 0xef18ca0dc183ca0b7cbf51c72fe1e10731dccb89946bb9605a98541a8bcdf823. 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/9fb97d8c-de22-4bcf-9b30-b6c1ec5898fc.json and https://artists.proofprofile.net/proofs/artist/9fb97d8c-de22-4bcf-9b30-b6c1ec5898fc.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 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 0x02f6eb34b4721b6ee3be5a45dd3e4e40858aea3d44a4893b03bc5c22d372555b. Chain 2 (Bitcoin): anchored in block 958134 (2026-07-15T09:14:08Z), 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/QM24S2406372.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ee173ccf27559371729bea4047d7e407885dcea324229e6aa11647b0f5e9b3d. Chain 2 (Bitcoin): anchored in block 958349 (2026-07-17T02:28:59Z), 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/QM24S2406371.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ce8370ef7ecfcb004d50933386f5d51a693a9273f95e2d404d4af26ae16d1c9. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM24S2406367.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55f67deaa049e5c68471c6fa4ac1ef9d6fcf4c4bddb52ce744aaf5a0d549fe8a. 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/QM4TX2423378.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe64c3e055f35e56f6031799f07ca2ac6fe5951c3c801e2fd892f1ed0c59c8aa6. 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/CA5KR2207504.
Alright (Redman & Method Man feat. Nefertitti Avani)
Snoop Dogg Presents Algorithm (Global Edition)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb9cf03dd3c3ae77fb72dd3250be8ccad7761473d8e7d672987220e671a7062b. 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/USUG12105387.
Alright (Redman & Method Man feat. Nefertitti Avani & Aczino) - The Global Edition
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd546d730ef86c03c5ae3f5ded0baee698f592d791345bafa0a55b8147bffd205. 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/USUG12106271.
Alright (Redman & Method Man feat. Nefertitti Avani & Joe Flizzow) - The Global Edition
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b13ca77f268d73d2c5157580b2ab6f8826cf2aa647da3cfd9a3e74ba7e36854. 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/USUG12106269.