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 0xdfd6b5e8fd51b9657b637ba41c975521de35a3d6e5d5c640e866e27e092d4116. Chain 2 (Bitcoin): anchored in block 953630 (2026-06-14T12:06:27Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/300132d5-8bdd-478c-93a9-91066a1cef0c.json and https://artists.proofprofile.net/proofs/artist/300132d5-8bdd-478c-93a9-91066a1cef0c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Dana McCoy: The Wild Honey Pie Buzzsession
Call It Love [From The Short Film “At Capacity”]
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 0x344f53ca14405c105c24122152a78a32ec8b42cdc56e41660831ea4d2926e882. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/QZPEW2440648.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa810c2a37b0b89fb44ccd07c06f6e85c1cd654df9664ff569ff44a50fdee525. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/QZPEW2480108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9db8a056ca9d2c4414185f8ad0f0d592529255a3cf5d0762fa6fb8001f2e6f2c. 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/QZVEM1886328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc695acf504a24b527448020bd06a2ec669f3855b025d68d584ba9888cac63ade. Chain 2 (Bitcoin): anchored in block 958346 (2026-07-17T04:01:36Z), 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/QZPEW2561733.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf9f9e59c0d1bb3e9efdd2f9860ab04903e5f74a2cc80af4404c0c1396770973. 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/QZPEW2561734.