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 0xfb21645eee1af50107b3d49cf58080ac55df9fec50173e73178c5aa3051af094. 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/bbe05bb6-deec-4506-9a5b-cc72dafe3e2e.json and https://artists.proofprofile.net/proofs/artist/bbe05bb6-deec-4506-9a5b-cc72dafe3e2e.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6683c8885a4a17a8daad4ce837ab17ee27709897e43ba9eeb56f0eb79772ddb4. 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/ZA56E2415904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x839a2f1cf230e971dd9de5a50d3df51f57f22c96108e8aad68cb3ca3d60a888c. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/ZA56E2315011.
Kwazekwamnadi (feat. Sbuda Maleather, Pabi Cooper)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76cdeb08ec9c0a4a19a1daa483e00caefc2400c26ab9b5325a4017c01af3421a. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/ZA56E2306233.
Mozankwari (feat. Rosey Gold, GoodGuy Styles)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3188e74554497542269fad52e552f8f07fcc25b775775b28e523d507392be0a6. 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/ZA56E2201880.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb088dbfb2700bec6cf727966dfe0531a467d5bee3334e99160f02e3fa29f41a3. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/ZAC012300053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87362babb7a91d0c21893e03909d2df4d395cff7159084bce0c4aca26fb53446. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/ZAC012300054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e06574b5cca2ebf57a26ec9e4b1ebf0950505ed7f51efd82647257ff42624b8. 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/ZAC012300055.
Summer Ya Mapara (feat. Mellow & Sleazy & Thama Tee)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08a96a90365477e8c4aca5f4f80bf7d1068b70620102fa05ed475ff309c3493b. 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/ZA56E2416125.
PSL WAVE (feat. Ch'cco, M.J, Mellow & Sleazy & Thama Tee)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85022de2bdb73b656f4b3499347ac44f77302200ba7d3e055116ba35f9e0b304. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/ZA56E2416126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf756459be9bc2b411bee130dc1c44d9073fc365f0461f9e01dc1efbe940980a. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/ZA56E2416127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a7673e2b583e231ae574f6072ff9421f850d1c35d36b8a1843ae5bd2b78814c. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/ZA56E2416128.