Preston Eugene Epps (July 19, 1930 – May 9, 2019) was an American percussionist. Career Epps was born in Mangum, Oklahoma. He learned to play percussion instruments, including the bongos, while he wa
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 0xe7dca5d32545393e20545eb4e26a5fbdf7175e33724b4f81af36f01623058ec4. Chain 2 (Bitcoin): anchored in block 953770 (2026-06-15T09:50:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b41a4f3a-809a-4757-98be-1bc9003c748d.json and https://artists.proofprofile.net/proofs/artist/b41a4f3a-809a-4757-98be-1bc9003c748d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Bongos in Paradise (Music for Every Mood)
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 0xa3b65e59cb0b309c86a24116d7559aa5741be4271859ac4a977ae9b133676713. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:54:05Z), 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/QMFMK1328001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c4411ab398e720c73d3d0d5969a2e2efcfbc47b3c3f29cc0a3f15470f698748. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/QMFMK1328002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e7b0da78ffb85bef774d2179d528da034273dce45cc834a601d16ff1085fdfa. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/QMFMK1328005.
Bongo Rock [Extended Version (Remastered)]