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 0x5e71691da1b8ef8b94aeb939208a6f8034094d2095a3eb3254c0cfdbc2796f03. 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/87103591-b9f4-4948-ac7f-b06411d5b993.json and https://artists.proofprofile.net/proofs/artist/87103591-b9f4-4948-ac7f-b06411d5b993.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
R.N.S (Real N***a Sh!t) Cory Bux & Y.Pee
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 0x86515130b77d9587b4c0b72ed4e22b44b5d5180777af649533d1fbce803c9ab1. Chain 2 (Bitcoin): anchored in block 958436 (2026-07-17T16:42:22Z), 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/QZHN41971107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78494d364c163655da5d91c6cf4aef697309823be6a9d1e50dd364830f437fcb. Chain 2 (Bitcoin): anchored in block 958242 (2026-07-16T05:02:52Z), 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/QZHN41971108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d6a15bb2cb871f15212fc68cc9b9aecda0ca82ee449c0bd5c21a72c2ea385e0. Chain 2 (Bitcoin): anchored in block 958390 (2026-07-17T09:35:49Z), 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/QZHN41971109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0621a7efcbd9dcc5874ab3a8c7b0e4a792baf4586b5cc33656a655fb69e816a0. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QZHN41971111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b68c6cf02cf99162161b4a61692834432a8c7ed60f73922ff9999c6568be559. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/TCAJX2505189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d99003ebd940737b409a807345ac1bf16928a938583a2e9f55548b2e2cede30. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QZHN41971112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4597ea9e85b5871bde64f8ca54acf1dab9f4966127a59f68df304a871819495. Chain 2 (Bitcoin): anchored in block 958410 (2026-07-17T12:18:07Z), 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/QZHN41971113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc34e0662b434d79e8c0ba89f6a96b494c7da67572946612065e5180f7525bc39. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QZ85M1943402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18b0e4065264e52abf9d3e69505b210ba7acccadea9f121810e7d23f774f21b1. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QZHN41971114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb51707ae9e2950eace340ed3956f8e7f255378c39c4499698a79944d40f53016. Chain 2 (Bitcoin): anchored in block 957805 (2026-07-13T04:34:37Z), 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/GXF9Q2557753.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c130b85f16f6f776599b980b3e567115dae89857eb11f90a03b06874ed12356. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/GXF9Q2557754.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x943ec1e364c560d11ba7e91bee74aa5f52d4a1b9bfa4fa3847ee98ca0c4c1dba. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T12:06:11Z), 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/GXF9Q2557755.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x895aa0e65ef0699d9885c121d18c3357cf9d060c855e5711cfc4786a8cc88592. Chain 2 (Bitcoin): anchored in block 958568 (2026-07-18T15:23:47Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GXF9Q2557756.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2e589695105160b23ad4d2ed2be16d9416ae36fbc7698ba4fca271f80dcc8ae. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/GXF9Q2557757.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f6b89739476bdca71be498308759876a81da32cfa9aa6851429f2ae640e02d1. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GXF9Q2557758.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1616ab5bba84b517ba39b2ca441a50d5a1869d2f2c89caa74e770b0429214d9b. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/GXF9Q2557760.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29fa9e523c7a135d6e1d6ff5ae67ebd21bcb91121e10e069a2756c30175601d7. Chain 2 (Bitcoin): anchored in block 958371 (2026-07-17T05:45:43Z), 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/GXF9Q2557761.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c9f1b3aa3982cb5c561376424e4aafdc166be8c612aba6b9b4b37328dadb82b. 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/GXF9Q2557762.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf8f322ec2dea6a9817b1172827dc6f2314ee5e66363eecbcdc1c26dd64c6ce4. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/GXF9Q2557763.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbe7e45742e18f2bb6f52e5e3a96ae99e1ced6836edd8f3cd77cb7661ce95f4e. 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/TCAJX2504803.