David E. Finck (born August 26, 1958) is an American jazz bassist. He plays both bass guitar and double bass. Early life and education Finck was born in Rochester, New York, while his father was at
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 0x72ef882615dbe470d29ace2327d6ff41c60b98a7ad3c550df8bb49f36fb3b937. 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/d69e5f86-38dc-4d20-9eff-c6450996ffa1.json and https://artists.proofprofile.net/proofs/artist/d69e5f86-38dc-4d20-9eff-c6450996ffa1.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 0xad5a3d05bcb8a9b9e8a0fc9770523c050c8b5bf4b8f2ea8ec64fdd58dac038ee. 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/QMQME1900082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66155ee0548303bffec5fa5bad2c9d51ff403f79cb8167787668e0ff7268ff11. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-19T21:20:45Z), 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/QMQME1900083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22ae6dd15d564c230ef034b7f3556584539d3217aa7e57dfe5cb8323cb307553. 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/QMQME2000013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7250a23b64523c6fda301a67c621734ab150ef8173d412c81eb51ac34ea02677. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/QMQME2100030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b028462d5940e21154dfcfc29557886d035434d2233e389ba7f49d6ff5d03c1. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QMQME2000016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9ae7d88cac1a313f5f8b682036d2ea97da764b8ca4ecefbe2a0430811fac4f4. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/QMQME2200121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa7f561861ce6ea4b454d4a027291cea4121c3b90c64db21ff826c665950265a. 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/QMQME2300048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ea185b3ab16bd300627c8c0a5b2dd89c20e5919817e6bec703398491cbc3bc8. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QMQME2100175.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64a82e3394e116a850acc2cf33140079138e9fdf8024f9295a2958717e691390. 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/QMQME2200053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7364ad2c0e748c0d6b0bffd5b291fb8f79a7f26869ac32d11904fdef738293f4. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/QMQME2300072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaca1296d1d39428e30fff4788133f12e4835d243c04f836ec3d0329c055019ec. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/QMQME2200054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80fa0390d2fa5a97eeb413b2934c1bec02543bfecfaf5154a4d46ec47c44d7a9. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/QMQME2100164.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5614f3f1ecad0106bae55eee9ca57f993bcf45c97642cac6a804c6ec46e8bc8c. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/QMQME2300010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x888c613337b38789fb96a1ca4918754ad81c74815f0ad6bc078a2f3247d4968e. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/QMQME2400067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc188cf35aed6dcbcd161d0f32cf2ae4d0b7a3966b2b9cd0466928e8cf666adbe. 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/QMQME2500026.