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 0xa87bec2dde9feb6f1d7ae46911bb00ae2fe28b8b87483e1c18f7805cdd5b8374. Chain 2 (Bitcoin): anchored in block 953808 (2026-06-15T16:45:15Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f0520462-0b8a-44ce-b0d1-ed66374f6912.json and https://artists.proofprofile.net/proofs/artist/f0520462-0b8a-44ce-b0d1-ed66374f6912.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 0xf450693e26c3cb1052ff2267f98a40f4c09e5fab4e70588a03609fbaf51aa177. Chain 2 (Bitcoin): anchored in block 956404 (2026-07-17T04:41:59Z), 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/QZWFL2438917.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bcfbb1b64ea53ecf951b9ae250feeb6e0e0a52ae22bc9528ba111c9c404f5ef. Chain 2 (Bitcoin): anchored in block 958091 (2026-07-15T03:17:03Z), 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/QZWFE2421233.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08c34b96e51a655bf87804d9fe058c17a5e6636446153b7d9da3e284407d33d2. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/QZWFL2438918.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b8c42984db9197647d3e565625d41b7238b5c4f3288b0c40f8bc9ef483dff54. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/QZWFL2438919.
ONLY PAIN & SUFFERING WILL MAKE YOU REALIZE WHO YOU ARE
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5648c214ed670a09850543aebddd8d3148099fc0d115c50e8701c39b290c418. Chain 2 (Bitcoin): anchored in block 958357 (2026-07-17T03:33:42Z), 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/QZWFL2438920.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb29ec49bef9b132d6e9bf8fed120abf1938f2e5de8a53e3e92f22cf6fc949f7a. Chain 2 (Bitcoin): anchored in block 959002 (2026-07-21T11:47:29Z), 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/QZWFL2438921.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2cc24a21427371682dadeb2216ec46e9cefae39b7558eae6ea04e9bd95d311f. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QZWFL2438922.