Bittner (occupational name for a cooper or a barrel maker, the name was derived from the Old German word "bute," which means "cask") is a surname. Notable people with the surname include: Egon Bittne
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 0x1fe0614156f57230ba001bd5403d5076a6cfcebac75dd20dbfcc1cfe8f5adf8f. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8215671a-8a49-496b-b1e1-bfc62fd88d25.json and https://artists.proofprofile.net/proofs/artist/8215671a-8a49-496b-b1e1-bfc62fd88d25.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 0x343d0049a8477cf3b90e812bc4bb1542ec1cb39db27e7d10615abb8d0efda165. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/DGA072384116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2ab2f4b4c9dfa4d1f9276598b45175f4567ef0d3c9c02d7a2a693f11d7e3913. 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/DGA072384117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ae7e2f68c00541d47c737af178c6397d0759830f673c0b5459c98df60525416. 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/DGA072384118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92123a15aa009f7391398c2ea2672c207ada6f9aa8fc6a09acaf9ea71b552548. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/DGA072384121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5103fb1780e28bc47e144e75f59d80e250d5a0434316bc744b91462d7bfb4916. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/DGA072384122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbfdc24178384f4d851c92b02f0c07a2f1e52218dc09e5a11898fad3663e633d. 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/DGA072384124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7351cecf57893eb56503485acf498d2ec4b6e84df434cc8f0cf7b60eaaf7e841. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/DGA072384125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bc70ca698f8fee8666979e91302892bc65de8f8396b3fd45ca44f2ad78086b7. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/DGA072384126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d31605aff958d6c07773d35cda2d4009aa583405930e64b84204b7194d10474. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/DGA072342731.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6546b8e9c1c31254996a624203e545eb6767111ec9d88f9672a94adeea72d3da. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/DGA072384128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b978dc087a662afd99f1fe8203fd5d4f1cf6cc571aef9f7860c90cb1a14ebb8. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/DGA072384130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d31605aff958d6c07773d35cda2d4009aa583405930e64b84204b7194d10474. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/DGA072342731.