George Schmidt (October 28, 1927 – August 29, 1995) was an American football defensive end in the National Football League. He played professionally for the Green Bay Packers and the Chicago Cardinals
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 0xe28cdafe25606fdec60eb475baa3fccfe887c34a78bcbbd3d40ba69e257e87eb. Chain 2 (Bitcoin): anchored in block 953714 (2026-06-15T00:43:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/870a49ec-928a-4eda-a341-d151f68f442f.json and https://artists.proofprofile.net/proofs/artist/870a49ec-928a-4eda-a341-d151f68f442f.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 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 0xf08a3fa2f1d1148809f34d0f91470d1b63bad2db0ab984a38c3ebbd307a99316. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/CAENV2570692.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x210a34d361938fc5b7ae057dab97b7d05590b81fbe0941138ed45e9c8fec9d72. Chain 2 (Bitcoin): anchored in block 956777 (2026-07-05T11:01:08Z), 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/CAENV2570694.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3448bf1537a7df5930da042ae11ab326dc71feae631263133afc84b694c63f43. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/CAENV2570697.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ab9e17354ee88417cc9c3a5c0eb1a4cf56869cec9ba897911e3fb03d25a4072. Chain 2 (Bitcoin): anchored in block 959146 (2026-07-22T15:41:47Z), 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/CAENV2570698.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e0a3ab3d529b1a097e463e50d9eab19f0b87d47edcd7ef23b6058dd85348e9d. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T08:41:42Z), 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/CAENV2570702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9664baa9da7ccac69e2d196508bde7f1542a04b6a36f4e13cc69c1b282c3a1ed. Chain 2 (Bitcoin): anchored in block 958839 (2026-07-20T07:01:59Z), 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/QZMEN2244824.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e6294a0a954a0a2742878035bb2c4c149343f54ce2e081932ddef0421d4be58. Chain 2 (Bitcoin): anchored in block 958800 (2026-07-20T00:52:19Z), 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/QZMEN2244825.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc83b381900f1113d768f10e32e9a2cc8d45941cdf8b8e195f2deda2848dc84fd. 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/QZMEN2244826.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde93058d84d29306ed1a39ac67a4385f614ba009f73dcdb3a208493960aaa1c0. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QZMEN2244828.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e870ba4e80a5398f237a0fd6da035123a2b98813950bee01d3375e4aa85942b. Chain 2 (Bitcoin): anchored in block 957761 (2026-07-12T21:55:15Z), 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/QZMEN2244829.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdba4adb83d0a297ad0879b46a4ab741b7c9aa5bef6a43a679cf15e9340aa5e6e. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QZMEN2244830.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad957e41295ecfe5f5c626f951023d58e3031fe632b607f8d1e7ea142a6fa78d. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QZMEN2244831.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9399cc30da7663bb528f4c8c32a18a3dae11a84d4443d813cc9f4633762c77eb. Chain 2 (Bitcoin): anchored in block 958825 (2026-07-20T04:55:29Z), 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/QZMEN2244834.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7d2a19e1bf5f6cffc75fd2ee2199692675860ff9eb0e99e1b1826ac6d6924ef. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T15:36:35Z), 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/QZMEN2244835.