Gresh is a surname. Notable people with the surname include: Alain Gresh (born 1948), French journalist Andy Gresh (born 1974), American sports broadcaster Dannah Gresh (born 1967), American publi
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 0x69cecde1f542ad40fca65b89bf7f4dfdc133172281e070b60c3b5abf00de1562. 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/3c81993e-70fe-48eb-b7e4-7c5ab280a611.json and https://artists.proofprofile.net/proofs/artist/3c81993e-70fe-48eb-b7e4-7c5ab280a611.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 0x4a2c2a55019384cad674b6f6c95072e239dd23ea540076a01173ef1d73271b98. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZES52150315.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3b5f3ffb8f3ff4c932b50ebe46d6f3d71c196db1296cdee466a78cf96671eaf. Chain 2 (Bitcoin): anchored in block 957772 (2026-07-12T23:31:17Z), 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/QZTAW2437568.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d9fc3cc0cb9876c5e27c2ed3e59b995eb649fa51770d97d206bd2b08ccae6dd. Chain 2 (Bitcoin): anchored in block 958576 (2026-07-18T16:22:28Z), 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/QZXLZ2407350.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98407f245e41174126328cd1f76addee29e82fe062ab1ea1c2eea01600945e0d. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/QZTB62400706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e1b9ece3a4d7bcf296196040043fa854379935392c8ad8d9a646abce6f2955d. Chain 2 (Bitcoin): anchored in block 958965 (2026-07-21T04:29:05Z), 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/QZPEW2544559.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73161211bf152e9851b1cf5e0e5a64abe57a1a442da61a8dc5a97c1401b465cf. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/QZPEW2572158.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04610521a4831fce5c329d4313e73146776305f9d14403b58ac908e1e371ae38. 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/QZPEW2544565.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x974a72e3fb4b755ce027df59abcaddf888e16f4c5ab23c290549193c28e58247. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QZPEW2544562.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c1c6d2c79724dd6d3b55b17c1b5b4e43af95711fb0d8faac664a32e59ae3e5f. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/QZPEW2544564.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x394510082ff7b479f406a3bfced909c0cf7972a658cf9058225d0b88a5ba1260. 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/QZPEW2544560.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7934c6b3a3700550e9e8101e9211409531de84c361cd143811405d86ec4cfb47. 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/QZPEW2572292.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01b5ddaa4cb78e2c192ecc7de577853ff9f72949132570e4e5f542d77cb94989. Chain 2 (Bitcoin): anchored in block 958197 (2026-07-15T20:40:29Z), 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/QZPEW2544561.