Frank Joseph Perry Jr. (August 21, 1930 – August 29, 1995) was an American stage director and filmmaker. His 1962 independent film David and Lisa earned an Academy Award nomination for Best Director a
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 0xeb2b7e09ba039bf525821b74c11c160427e0f3ed99d83b6af7ca28eedaa86c95. Chain 2 (Bitcoin): anchored in block 953592 (2026-06-14T05:36:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/078b9309-040b-4fb2-8384-6e01878be65b.json and https://artists.proofprofile.net/proofs/artist/078b9309-040b-4fb2-8384-6e01878be65b.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 0x8ee5e4a7f5109f73ae38d3c3d547986452723a45a96c6041357bd51194091fd1. Chain 2 (Bitcoin): anchored in block 958083 (2026-07-15T01:50:31Z), 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/QZS632579883.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82a0ab700f99614cf8c18a3e5c65e0509df6278404d9f7f0c0d79c5b441d2160. Chain 2 (Bitcoin): anchored in block 957774 (2026-07-12T23:51:20Z), 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/QZMHP2558177.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bd2003d309b72ab4b3415d76a063cad344bef2978d8f6878d12896ead011234. Chain 2 (Bitcoin): anchored in block 957775 (2026-07-13T00:04:23Z), 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/QZMHP2557501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fe60de53f203f40052e3857ed06d0ce4aa6ddd769d6424f7002c7a97cdaf6fd. Chain 2 (Bitcoin): anchored in block 958216 (2026-07-16T00:00:34Z), 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/QZMHM2556907.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb0648c9ad831c28169f2bc978278a5307de6e166a4e890b961d0d70447e744d. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T14:58:07Z), 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/QZMHK2573866.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b08e418dfb45fc64e3972cbe28618e756eb694529615ee6a15651805842a3a3. Chain 2 (Bitcoin): anchored in block 958185 (2026-07-15T18:19:04Z), 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/QZS642509414.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb731d3b8a7a86ed2a3ec22525a0baa9b0646d6ad2f63d480c66335ecdb677372. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:19:37Z), 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/QZMHM2586470.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7eff90b439d2b24e74a81f1f36d8e123711e05f2e00b2075e23a5ba6b0310fbe. Chain 2 (Bitcoin): anchored in block 958111 (2026-07-15T06:58:20Z), 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/QZMHM2582115.