Martial Simon (11 December 1898 – 1 June 1977) was a French racewalker. He competed in the men's 10 kilometres walk at the 1920 Summer Olympics. References External links Category:1898 births Categ
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 0x42240be78a76f67d95e669f914e8bfb95c4ee898d1514c35012ee4c86000fd57. 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/0ac1984f-e6b9-4a39-85f3-8c2775b1f5ff.json and https://artists.proofprofile.net/proofs/artist/0ac1984f-e6b9-4a39-85f3-8c2775b1f5ff.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Kryptonite (I'm on It) [feat. Smooth City]
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 0xec757c0d0e2467e92b117fecb38ff22044e69a67ba0c3a67b2b6fffe48c3565b. Chain 2 (Bitcoin): anchored in block 958349 (2026-07-17T02:28:59Z), 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/QZQCY2100009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5200e627fbeed92318c414939936eec00aa4424d9e4a0c423d92745befb7968f. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T02:49:15Z), 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/QZQCY2100011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4234a012447a934340c6208cddf604589d857e343a0490464367266667a0c77. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/QZQCY2100013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41564cbf9199133594e987a7820f57daf45bfcd2c07a41d4b174457d56bd3aff. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/QZQCY2100024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f0424860174bdf9d05e04b3bdf3e255ce06d53b8134c13b67fe7e001e8998ef. 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/QZQCY2100059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1d6d5796e3746984680f27dc051f40b743aab777a9a7d31ec0445787206a5af. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QZQCY2100038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8eda1cfe7ede8b9a39c4dd40fbb50abec167a5dbabaae52bf8a6571c0d12c41b. Chain 2 (Bitcoin): anchored in block 958501 (2026-07-18T05:33:04Z), 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/QZQCY2100043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48b9869136af52722f07dc8557c997c10007864223a9df961c685481435ab21d. 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/QZQCY2100056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac1cb017a09d8eed986c963ed246a2757fac484e065139ef0828281457bfab29. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), 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/QZ8GX3702060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6d65094803da4fbc6834ff62f0b447155a83b485a5126a0f4ff594813f55732. Chain 2 (Bitcoin): anchored in block 957785 (2026-07-13T01:55:31Z), 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/QZQCY2100073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed04e0248c7d3f1c2843566d5dcb47636f647286c668ae95c33961a6748a58e8. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QZQCY2100071.