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 0xabaacce2b3c41c2672a8c0fa2f2c73518991d2148a03b9a4033dfd76a18a38bd. 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/4f29472f-e18b-41c6-ab9e-ad6251a93f72.json and https://artists.proofprofile.net/proofs/artist/4f29472f-e18b-41c6-ab9e-ad6251a93f72.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Park Avenue (Rolodex Propaganda) [feat. Action Bronson & Roc Marciano]
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 0xb77bbc4223618c99c11fcf1e3ab2ad6a4d842bd1564cdaa1402283ca64b1360c. 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/US7SR1100211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4dff41157d5067cb10ee7519afa639d4beeb108f9406a2b7ec07bbd682658cf. 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/US6YF1900035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4dff41157d5067cb10ee7519afa639d4beeb108f9406a2b7ec07bbd682658cf. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/US6YF1900035.
Non Fiction (feat. Ag da Coroner & Ill Bill)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2039bc71a9a6cff9d9b249e78d783bf214b67f67abad7fa279d7a1c190d49ebb. Chain 2 (Bitcoin): anchored in block 960296 (2026-07-30T19:11:09Z), 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/TCACG1588610.
Drug Lords (feat. Action Bronson & A.G. Da Coroner)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc550f96e37089b71a2213b72c3fed8bc32de1a134e3a42409347f84e4b183f3e. 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/USLD91600065.
Pan Seared Tilapia (feat. A.G. Da Coroner, Action Bronson & Despot)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x713227c1e6d121051a1c67ed2b484e6f18eeb3cafca11054eb937c3c28546f56. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/USLD91600067.
Bbq Brisket (feat. Action Bronson & A.G. Da Coroner)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d1a0c41e78d65c4bf563f86a70a387a29c5b9518c19335820f4b99929224847. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/USLD91600069.
Juevos Rancheros (feat. A.G. Da Coroner, Heems & Riff Raff)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6daccd2571f70980464988748099d1994e0154b014597ef5ecadcff15286874. Chain 2 (Bitcoin): anchored in block 957011 (2026-07-07T08:25:35Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USLD91600072.
Stewed Rabo (feat. Action Bronson & A.G. Da Coroner)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03861029ee237f7883b3f98905583f4969fa8326289b665eaffc2941a1c994a6. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/USLD91600056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d5ddbeb67545e5d2cf3ea968794a256b197640defbd396b8ef8eeeb90297a3f. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USPUS0902497.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94bc80a87593b717d43f8e8568411c3bfb3b3d1fc9910401f5b8a71685780cb9. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/US6YF1300025.