Kora may refer to: Places India Kora, Bardhaman, West Bengal Kora, Bharuch, Gujarat Korha, Katihar, also known as Kora, in Bihar Kora, Kendrapara, Odisha Kora, Wardha, Maharastra Kora, Tumakuru
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 0x7bb1b3cfc5b43ab5d73286c7729c849523ba47ed446c8af1289e22d572a599be. 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/eb4d25b0-a4cf-4552-b3f8-8a6c92486c13.json and https://artists.proofprofile.net/proofs/artist/eb4d25b0-a4cf-4552-b3f8-8a6c92486c13.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 0x93c4a09ba627bbb904a4605011ff3df917122c395699af72c7f894aca7f6e85f. 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/SE6HN1983114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3218b27630057a189f1c65e9d3aadb2b43e1ee6d016550552cd6582c2d6b859. 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/SE6I31922558.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x935cf5d05f4bc0981568bf41708600338cccaa7c775ce45e17c0b3900edaaef4. 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/QZDA72018136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x837ae9d3e125572ff2edd0d91d398d7d37473d7e74ede5933db846f31d6167cb. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/ZZOPM2004211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8277ea880dec5076180dbbcc82c6b3263a48e664cf540b3ab406fb425882b45d. 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/ZZOPM2106052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38063f9ce882cc37a45129becba1bae960945ed7f7fb7c2776a5f3dc1e905ee7. 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/ZZOPM2223224.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56356fb634d065964b77a164a2d99e7c51b48095253b5e2a9771569295a1da89. 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/ZZOPM2221616.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7571bd0329f7ed69c2d25c76729a2343eb11f4a75bbe7d823d21ac2bee39c7db. Chain 2 (Bitcoin): anchored in block 958987 (2026-07-21T09:04:56Z), 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/ZZOPM2223226.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4be8b1908cd43ea001ed732ddab31bdb8e02e09d4e7396eda08f5299e7e3dbd0. Chain 2 (Bitcoin): anchored in block 958945 (2026-07-21T00:35:28Z), 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/ZZOPM2108629.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x454b982c3844a01aafad78297df369e7b2946966b433ad12cd9cf79298b8274a. 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/ZZOPM2223228.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1057c2f7c44ae03be676331947cda9149024b2146bec455ab2f708c1fc0be12f. 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/ZZOPM2236204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf27d54ee7cc7d008507358f8061c7a43b3b19a54288865b4f4c04ace402aa18. Chain 2 (Bitcoin): anchored in block 957965 (2026-07-14T07:07:52Z), 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/ZZOPM2236205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3aea697b67e8fbc697d79aaeab5bd3e74038e84311b8152bcf8c45927d9030ec. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/BK4DA2301605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76407173e17857cff4435c5dcff451bdc03f2f335a8c62240cd1b97a151bc5b9. Chain 2 (Bitcoin): anchored in block 957805 (2026-07-13T04:34:37Z), 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/BK4DA2301606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca12038e1cc60b5e6c9340d2970672bea3671cb7a4fe3dc8db9e3414ceed9a1e. 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/BK4DA2301607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa503c44031cc825c0626110ac5b8f31f054d1bb3afffb6c437f5c0efb9851450. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/BK4DA2301631.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe23dba92862bf276f02d1353fe0ad3b610a9f57873ff8cc293c279b8f6df6736. Chain 2 (Bitcoin): anchored in block 958600 (2026-07-18T19:24:05Z), 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/BK4DA2301632.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3af245c5b176e35dd17d7f54f98a74c370f648e81227bbedf33c06122a97ba9. Chain 2 (Bitcoin): anchored in block 958752 (2026-07-19T16:00:28Z), 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/BK4DA2310409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdaca6e5ddbb4f0253ec5b9ca27be5d0c05ab15502fbb670c9c1ed795ee25d2c. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/BK4DA2412885.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cb00d4ac2c64d716e93210550e104c401392f9d9f6eea2afb0044240ca084dd. 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/BK4DA2413630.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf3cff94359ec5b039fba500552edddb7ce6cd227cf6ee9b816edc8d5122d052. Chain 2 (Bitcoin): anchored in block 958465 (2026-07-18T00:04:42Z), 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/BK4DA2447359.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc674f6a92dea2acb148b579a532eb9c5e99a4d3340a70fe039e902eed3e38711. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T08:39:15Z), 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/BK4DA2458664.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e7fe1e913ddd806062bfc60483b3d107c3417fe264106b5de15cc08faa425f7. 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/BK4DA2427649.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdaca6e5ddbb4f0253ec5b9ca27be5d0c05ab15502fbb670c9c1ed795ee25d2c. 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/BK4DA2412885.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb45e200dbbcca8f377d16bad9b8ee49bf09bfc1067025d089fcb0880e9966859. 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/BK4DA2455910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb07fdd18e8c58792ddd108a786faf1cb39bd090dc7f01ebba899c8563917e732. Chain 2 (Bitcoin): anchored in block 958662 (2026-07-19T04:43:15Z), 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/BK4DA2458663.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cb00d4ac2c64d716e93210550e104c401392f9d9f6eea2afb0044240ca084dd. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/BK4DA2413630.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9a4eb4e878c16fb1007487cc631608c004f852147076a1dd4e21fd0ae5b267b. Chain 2 (Bitcoin): anchored in block 958529 (2026-07-18T09:21:41Z), 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/BK4DA2458666.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf3cff94359ec5b039fba500552edddb7ce6cd227cf6ee9b816edc8d5122d052. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/BK4DA2447359.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0c67034c8b158ff2da752b4645648ad0203065d39aa9c779e1cfc8bed433e3f. 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/BK4DA2430316.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58fe6d9fcc29b65d9537d55dc0f80a35b7f2e4aba431bd0976b3a04fa8236d44. 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/BK4DA2458673.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc55e9558b6a98e44366c19dc0443b809bdb525a964127e978f91d08abf939174. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/ES71G2237109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb82e3d474e7a4533ec7d39b1d82d290e28fd09877d2817a706e0dea29321e05. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/BK4DA2315175.