Chris Schmidt may refer to: Chris Schmidt (footballer) (born 1989), Australian footballer Chris Schmidt (ice hockey) (born 1976), Canadian ice hockey centre who plays in Germany
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 0x4b5f00c53dde61761ce2c51c88b0dfbe11520576eceec44e23c926c9f6e987f7. 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/49eebb3e-a67b-4226-81f4-471d9622f825.json and https://artists.proofprofile.net/proofs/artist/49eebb3e-a67b-4226-81f4-471d9622f825.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 0xd81fcff3a0766b70ef59dbc60b49bb1ea0de5194c1ab520b12eda9c6920d75a6. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T12:03:04Z), 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/QZMHM2396513.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa449bc885079e5ca6b3cb7ac23f17eadc54812da6a46b31d8307b75399665fb8. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/QZMHL2314672.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7622256f6d377e2cbc49bba97d1eefb0e42298a6bab821c953537819774a87a3. 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/QZMHN2345759.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb6ffea13d8cb550d277ef8626d478d48a41eae1c23c75aca0aa659e0329d4f8. 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/QZMHP2325462.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9418aea995b330fbb9d6758e32bda2dade373f12681ebac496bafad1e32e5292. 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/QZMHK2364696.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38df483478275224ac2ebdd27d0ea7cc87e2a2180dea63fb398ac7ac5f819e6f. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/QZMHM2393117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe61eca9a5bfdbb21c81ed4857a116f5256d38fcf6c062b14e54c093babb8187f. 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/QZMHK2383629.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b1198eb3747dad7218f50123dc8b9598ca9cfd9a4d80766078112234392ae8d. 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/QZMHK2396260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b871abe930c8bdbe5295f0a7d9807b7298f68e78f54f69b837abf4b96e1e6de. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/QZS642331131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcad6f4a147212510102f8ca6729d13179d44966711868327fe14c10019fbd57a. 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/QZS632312668.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c67c92538d049282c30bb5e852d47d9d37c6f934fdd4813736a3fcd643207db. 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/QM42K2307468.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ed7c8351101232ea20761f5243f0c71eed38f6a182a2c1af99399e870930f42. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/QZMHP2359643.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e8860b90d8ff606b8ac30e5c80fd421bc042e8dad3ab732dd4511d9d0c0bafc. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/QZS652319089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdec37f497d0f85e109707b6dbd18a39497d448339b05ca566b745a8067e433e2. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/QZMHN2396081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06c49ba6e5de726a6e9888bdcb5651cdb8fc139288d73948233217be9123bcfd. 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/QZMHP2318726.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x004e6f8b09725a52f4fb32016eb190113f6a3e0a59bdce691d337b433661229d. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/QZMHM2328276.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc77bb7138e1f5e9f40612039c8e5768c5272abcbb47ae5ca877020d327455ef8. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/QZMHP2396448.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa38f4ed7eba47604dd413fc832a90585ba5a4da32c647b9bd07e2e170fe5b526. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/QZMHP2392880.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45119b1a5c4d390167e88fa958f5d09445e76c271079e814af2325738a74e2fd. 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/QZMHP2386613.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c9708eb9ac79730f83db882a81798efacf2b52ee2551f50c0c06ddf484b3fd8. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-16T21:55:37Z), 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/QZS652352678.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa91b57695af926bc981881f64227d19270d4666d4f352ed147dee5d37af01a2b. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/QZS632308216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d57e7f33f1a0be99cafbf57c3a8abf1b25095e29dab85654b1da4c58af521d5. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T20:12:32Z), 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/QZMHK2318663.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fe3a2227d6af1f7b50a51f6b98d8449e4f0d3835052f8dc09dc2839f8ee45c8. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T20:12:32Z), 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/QZMHL2339151.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x806abae15ac492c61c0dca040fa48c28b553ada4aa261f3a9ffbf89f9d9ee7e5. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T17:59:52Z), 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/QZMHM2319118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce4640e3411e6da0ca3efc1f83533ebcf4d1f02290100292b25bb3c013fe5d60. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/QZS652324530.