Kero may refer to: People Kero One, Korean-American hip hop producer and DJ Reino Kero (born 1939), Finnish historian Tanner Kero (born 1992), American ice hockey player Places Kérő, Gherla, Hun
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 0xb58212922dc57aec2a527f3680b000565504d0a67c6d2c024c7d34c81f495ee8. 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/fe440b2d-1224-4587-b1b5-afa483b25e72.json and https://artists.proofprofile.net/proofs/artist/fe440b2d-1224-4587-b1b5-afa483b25e72.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 0x5e10dbe7b610a0d82b7a5552b045a80a1f37d3136b41ec574b85353f94cf2f0e. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/CA5KR2266296.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd39a002de8c354e79e07b5a38ad8600ada0e723191bbd9dd0e29cea16174bc7f. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/GBEWA2402891.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7963b2fa11a3ee86591ae7b509a62bdbdf4571a7abb8b283734f63f4cbc9c71. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/QZFZ62474213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82cddbab0c1cdb8c7e8a515bb4c9efb7d03552d650645de0fec94d9bfd3daed9. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/QZMHM2367690.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12766c649706c3e9217f42036299535a79501bca001544805e59eacc752246d4. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/GBUM92300052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x770e84fcb3c94300d5559879fbbabbd8737d3baeac05b5331b326e05055d9435. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/CA5KR2315184.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8150c5677366ec3730189ed51cc602aef6a15e660accb530256dbfb8e5181a14. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/CA5KR2266314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45622f802c9860d46f5a0d2ae4849ef4e8d39723ef89aba980b2bc7cc3cec072. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/CA5KR2266315.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdae092ffd3d7fd27f8a7e8d2fdf63f6c9bb5e38eeba0ae647c5b1b6c7b1ef483. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/CA5KR2266316.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1d25c056135bc53c16c0409363c3be43d6f7d202f8080fd16d66f76126c937c. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/CA5KR2266221.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x933cdbf50bdc812618e4bc9454bf5cbab5a47704beae0c863135b6501c1b3507. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/CA5KR2252501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1d85ec49fda99ec12d3cfbfa4aa2806fa8cdfae9de9f1000011d210638f5c00. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/CA5KR2201232.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97e7cc90fb538e1171b74dc9a7e4ca022f1018c7b3c12535ddf88a2ee02f3b78. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T20:35:07Z), 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/CA5KR2197115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8586294f489ac0836aa44b28f225aa43ac5c6783e841843d3c86d2d00b7e737e. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/CA5KR2185440.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd87c597944a8a3878f9d637ae0d1e0905c97f12aee7a6013123a4832c0447f70. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/GX3HH2134261.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb38177a35832e14729a7db4b655d6909d99a21399b9dc95f61f566106930f47e. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/QZHN42147549.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe880f88bceb6a10c369e5c6c076a34a5944f8c60721ce267f568f565809cfb3e. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QZNWR2056936.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38c16604af099df31ac629fd4d2cb4e407eba59ff74c431b8bc412e9e08be27e. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/GBUM92300237.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46de86c427672a4b859e4bf20a6885297977800f00c4d77fe1e24e4fc51b61b4. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/GBUM92500028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5955a1eb6d14e40f453fdefc5601409261a3b65fc2510e40a39ccaf2c8f6209. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/GBUM92500067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c3b43b6c0316b5ddcda6a315e92146965941f641e8ca7f6349ec67b3b65d10f. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/GBUM92500038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c3b43b6c0316b5ddcda6a315e92146965941f641e8ca7f6349ec67b3b65d10f. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/GBUM92500038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcea8e8e4dcc172fd04dfbfb00ed671563ab70139df6fac4a33ff80f2184d20f. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/MXA3V2421075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9589f2be02df2d14617e95c67e95676dfadb350ea19d6f4509c25ae3171dad82. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/GBUM92400120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd33ee9098ebf62f82c359f9409502b5200821b15eacb0eeeeb36d8639ff9c4d9. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/GBUM92400137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97bc43113be42cb2bf2325fcdf0fcbea081691552f7f8706d38c63b83340c0b4. Chain 2 (Bitcoin): anchored in block 957011 (2026-07-07T08:25:35Z), 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/GBUM92400129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1907e25ee1468550344a9fb1e5cc4fe84cf62daa6ffda365ce74eadc89af904. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/GBUM92400138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97bc43113be42cb2bf2325fcdf0fcbea081691552f7f8706d38c63b83340c0b4. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/GBUM92400129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9589f2be02df2d14617e95c67e95676dfadb350ea19d6f4509c25ae3171dad82. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/GBUM92400120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd39a002de8c354e79e07b5a38ad8600ada0e723191bbd9dd0e29cea16174bc7f. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/GBEWA2402891.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb12b1be69a1cba081d7f14fce348d7d782a3c933e6033a963cb31f63603dae59. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/GBUM92400013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7963b2fa11a3ee86591ae7b509a62bdbdf4571a7abb8b283734f63f4cbc9c71. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/QZFZ62474213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12766c649706c3e9217f42036299535a79501bca001544805e59eacc752246d4. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/GBUM92300052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53c311a53c3c6ad1a9a10831c260935eb28ab8896968f1d4d212bf2f85ee3eb4. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/GBUM92300111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c00e68f7fbf57e19c3a4e1277e856a6fe6e6c6ce2622213dcd4544041d8b58a. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/GBUM92300112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd11e2813c1bdbf187e05b47628d3b8d470cf8de969f3cff2f1bd06bab6ddee16. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/GBUM92300084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd11e2813c1bdbf187e05b47628d3b8d470cf8de969f3cff2f1bd06bab6ddee16. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/GBUM92300084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc530ec0953c9f53e6715f53690d0850f493a62a33bc9298f574ac32fe766af82. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/QZVK62400016.