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 0x8364c355fa70970ac7213c36a068078af3817d658f267e30a786bf493c8a778a. 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/00cb011c-42dd-4cbb-8287-2e81eeb7e8b8.json and https://artists.proofprofile.net/proofs/artist/00cb011c-42dd-4cbb-8287-2e81eeb7e8b8.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Gotta Get Ova (feat. La Shonda Middleton)
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 0x8e4cceff357a5dd55112d41f4aaf08ba5af0feec0f02c21e6aefdc7a3f6f0684. 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/USLD91746327.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbfce2a59c279a99b117748457f4a140fbcd28cfb62f4c647df76a3d9a80b1a1. 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/USLD91741776.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x448853903c35ad07591e31e36676d912859c9d8b5d35ec8fd29bb8a3d72fd204. 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/USLD91745584.
Hostile Takeover (feat. Benny The Butcher)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f958848f02447d385e840a16401f1e6807596cdc1cb592f210528f9280cf59c. 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/USLD91746274.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99032f996447dce0830690e016a04d77f477ec397709be3daa51f2fe4e9349eb. Chain 2 (Bitcoin): anchored in block 959118 (2026-07-22T10:01:58Z), 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/USLD91746268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x448853903c35ad07591e31e36676d912859c9d8b5d35ec8fd29bb8a3d72fd204. Chain 2 (Bitcoin): anchored in block 957067 (2026-07-07T16:54:37Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USLD91745584.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x479d5a20e64f6a1d3f1f54389d6eb4bdd8f225a6912c577862e67db2e501c002. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/USLD91774372.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50b7f96a9be580fb006c7672c1ef50a24463755596c305dbb1899c41882b2775. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T08:41:42Z), 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/USLD91774374.
Hostile Takeover [feat. Benny The Butcher] (Instrumental)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8e61d06f0fc3dd377ddb8656bc0d1eff2829bc10e990948a0072797e3c8e91a. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/USLD91774373.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a82be847776078d3109aedcf6c2f6203706c00a6d91ade9bb9e25cb64ffd321. Chain 2 (Bitcoin): anchored in block 959107 (2026-07-22T07:19:23Z), 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/USLD91774371.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x479d5a20e64f6a1d3f1f54389d6eb4bdd8f225a6912c577862e67db2e501c002. 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/USLD91774372.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8e61d06f0fc3dd377ddb8656bc0d1eff2829bc10e990948a0072797e3c8e91a. Chain 2 (Bitcoin): anchored in block 959087 (2026-07-22T02:05:55Z), 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/USLD91774373.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50b7f96a9be580fb006c7672c1ef50a24463755596c305dbb1899c41882b2775. Chain 2 (Bitcoin): anchored in block 959094 (2026-07-22T05:29:23Z), 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/USLD91774374.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54bc13505d8f234054f145e3908e0e1536185809c4baba7a27438546e55092d2. 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/US6YF1900171.