Charles or Charlie Fox may refer to: Artists and entertainers Charles Fox (engraver) (1794–1849), English engraver Charles Fox (composer) (born 1940), American film and television composer Charles Fo
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 0xf627d92c7e6895b413e003f41d27f66c42692d9eb67de0abbc3ee88c591e09d5. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d5c149f0-781d-45a0-9703-28d25d81ba2a.json and https://artists.proofprofile.net/proofs/artist/d5c149f0-781d-45a0-9703-28d25d81ba2a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Pufnstuf: A Sid & Marty Krofft Production
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 0xf57143000c1884d493362e4d62f879e8bcbbf55a4362165d8ca2cac589444a15. 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/USUM72308241.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cd2174922e1de338989b01aac476f55c7dd1e65bc79ec6ccb8751546089a32c. 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/QMYW20600549.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c680a7b55588444d56405f656d8261216411b1c135fdf66fde71d6f57c36a6e. Chain 2 (Bitcoin): anchored in block 959105 (2026-07-22T08:41:43Z), 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/USA371182321.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44f90e22531ce67f803490c0a504372bf4a893f6eb0f95c7d931c3c57292f615. Chain 2 (Bitcoin): anchored in block 958864 (2026-07-20T10:24:04Z), 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/USA371182336.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x457f5fd1427ec69d3f571ae74a23f8fe85c77da9e68ed28e1c27d5603db1d292. 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/QMFME2251268.
A Song For Dead Warriors: Original Score to the San Francisco Ballet Production
Zorro!: Original Score From the Smuin Ballet World Premiere Production
Conan The Adventurer (Original Television Soundtrack)
The Music of DC Comics (75th Anniversary Collection)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x844142dfd2c25882c1f05ce7b2ac726c488b9994b5d07de4568498002938a32c. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/USNLR1000358.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82364612b76404eaf3f80310f4f9bb89377d603cd98b9a0207cec83b0d495926. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USQX92401628.