ESG may refer to: Groups Election Support Group, an internationally sponsored organization analyzing and supporting the electoral process in Pakistan ES Guelma, an Algerian football club based in G
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 0xc89b80f2f638e467e2c27b312f9ad82cb5a9ffd1228cdfae057fe7bc53342d7b. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7060b71b-f797-47cb-89a3-4c9671e1af5a.json and https://artists.proofprofile.net/proofs/artist/7060b71b-f797-47cb-89a3-4c9671e1af5a.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 0x7b6d0db1899a4fc4bd9adcdc0a21aebb079f28228c2c46133a753121d40ff31d. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/GBCKK1014006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9559702f61a06c013524fbb279007c09186c87e01abb452225f626b1dd14a9a. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/GBCKK1015610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8629ba740922ec31b389f602bb29d9afc63ccde3d655a336e683a26edaf93a8. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/GBCKK1015613.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x626f9a72ac7ef2357be32b107c74bd584c16131b98a84cdffc2fe96a56301877. Chain 2 (Bitcoin): anchored in block 957899 (2026-07-13T19:36:39Z), 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/GBCKK1017503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x497a775f56e8d01167140f66b6c93f2067266c81e02b30728249d47b1d26a2e6. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/GBCKK1015623.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe095f4bf480f662cd85f0769ae1e96797e02dc6484244d58d8b64b92c359abe6. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/GBCKK1015611.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b277865e79c6e4ec5a14ab838298517a76c8f26bb20688c5dce9f125a356e3a. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/GBCKK1015628.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccad8d48568afecf83a3203c4f7ece2686474eaed35ad21b5fe82b4fe6ead7bf. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/GBCKK1015618.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc696f53d8bea6afd26f6d3f4afb74f623af3620d09d7bc0b75cb4d9a2a67ba60. 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/GBCKK1014013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbddba1059731fb25a0c145fe41e8f6678fd344ea8c3ac8c3754626a9905f2b9. 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/GBCKK1123203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x972be14dd73cc83b6276d7f461fade77cffb1c4a5f8ece42086711d81eef038a. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/GBCKK1123206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83a08a28c2094155a78e6a26a45356a43052b0aee46947b8a7a354598ba9ca0d. 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/GBCKK1123207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cb0d1b939a7a69980d3ccf78cb266be517959f413d70f01b8ede1c7a1f29417. Chain 2 (Bitcoin): anchored in block 958054 (2026-07-14T19:33:24Z), 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/GBCKK1015616.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13a6d9ecf53efd9d7327252bbf00bca930465e2a6008d123fa0c6bbf7bd58db6. 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/GBCKK1015617.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72500887a92bfb86f15f32c88ef8a100c8874ee484c8dedf75ac63ff49438365. 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/GBCKK1015622.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x415d7fc9b8d7c631cae610b4daeae10526659e457aeae45c10d1dd0d34fbd5d2. 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/GBCKK1014002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73b43bc0162f27a4c158f9ffb50c3c0bc83fb88f07410d2697c3f622d3b612d5. 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/USHM81356619.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c91d64fbd8875df83d054dfbc9ad8cdc480d489b455550f489c81b7dea23c41. Chain 2 (Bitcoin): anchored in block 957834 (2026-07-13T09:42:16Z), 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/GBCKK1017502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef62d7d681ef66eb7674866fd294643be10d9459f73132f2cee1405e594b2e5d. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/USHM81770670.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2addc4ce8e749291803ec829da21c900e198b7b89b342e0118987d8eab1e0eb2. Chain 2 (Bitcoin): anchored in block 958653 (2026-07-19T03:54:23Z), 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/USHM81770671.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf75528fd8a1582d3cc60f78ff0dc91cd9f098fd06ce12457eec84876f63db244. 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/USHM82477543.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5340bc17588a713725f7d7ca1797ba100b345831afd66bb0c31ca4cd168827a2. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/QMDUN1300031.