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 0x343759d34071b19a311fb31c13867044bb0cc7ecab8566780ded8fb3422fcf75. Chain 2 (Bitcoin): anchored in block 953777 (2026-06-15T11:52:51Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ce801829-d6f4-489a-9c3a-432b3678209f.json and https://artists.proofprofile.net/proofs/artist/ce801829-d6f4-489a-9c3a-432b3678209f.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 0xc013d2a692fd89ecb7f496bcffd1fb9bf8fe6b4991c7f2225b7b0a06838412c6. Chain 2 (Bitcoin): anchored in block 958907 (2026-07-20T19:04:14Z), 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/QZWFR2348512.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe3c992cb9ab46008d424e356b111bb7cb3dad8ac4bc2f3f5fcf70a1320d6384. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T07:00:15Z), 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/QZK6H2594805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd137660a1a2e2b129e7b7e40f446cebb4ab58a559e297394fd9a20c8d270f48. Chain 2 (Bitcoin): anchored in block 958830 (2026-07-20T08:06:34Z), 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/QZRP42301386.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fef346ff6c1f6b9287dc0119247cc1a01e0898c0ef3042fbfa241a7765eef1b. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/QZK6H2594806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e3d9e7ad4d14e8b3d82544930ed1f77df30f33b3da849ed235b25137c887313. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T19:17:28Z), 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/QZK6H2594808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a5de08474b74a5a068be6f7270e04cdb9b19094c530aa5913794fa356949e5e. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-20T00:12:00Z), 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/QZK6H2594811.
If I Remove The Poison What Will Be Left?
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb36e1c9aeb400708e618ed2c646372448dc412d59128d481126732e969341006. Chain 2 (Bitcoin): anchored in block 959107 (2026-07-22T09:10:42Z), 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/QZK6H2594817.