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 0x59dfabd11dbd8c370b15c055db56f3e8f53bba3f12eadc7a211f9b236978147a. 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/8a9625c4-c1e4-492e-8059-14cfd616cc31.json and https://artists.proofprofile.net/proofs/artist/8a9625c4-c1e4-492e-8059-14cfd616cc31.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 0xf85d9158b375548475192535b5e49c2277fa254938b2b499c743ad37e877efff. 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/PLF242006881.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1232a311020c6409b0ccd15c11f237694137a566cc61e81199b4cb61af238386. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/PLF242006898.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x734c3afd9bfab1c286bed322357f6974b7c24ae038438ecb62f7180690276eb5. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T17:54:58Z), 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/PLF242007488.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x945423d01b6f93658654b8714e96c2b8afe43d1251ef6b29cb449e8388d154a1. Chain 2 (Bitcoin): anchored in block 958420 (2026-07-17T13:33:01Z), 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/PLF242007489.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4bb8ea2b95432d6653ba1123b4e47f4ff0d95f451ccbe4403ab00f059830b46. 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/PLF242007490.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b8b1aa4af94ab402f6984491e11599a2d137344ff0322e397b68cb25b65e76e. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/PLF242007491.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x600889d54922282050c4bac242adf7422c2bcf03763fa1704bc6cdd1af7a43cc. Chain 2 (Bitcoin): anchored in block 958420 (2026-07-17T13:33:01Z), 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/PLF242007492.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a0beb4e66bfcfe808daa8076fc7a411e04c1f70ec57b4ec2ee04052911067cd. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T15:07:00Z), 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/PLF242007493.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf3e8bcf0bccdc045ae26df8e7c23ae3ec094a52af1cc8f693503e42e7ef7ce4. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T18:05:23Z), 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/PLF242007456.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfca63098ba0ac7ce60c5193c0d6a23bfb3107a4bd5326a3e56695514bc3afe83. Chain 2 (Bitcoin): anchored in block 959015 (2026-07-21T16:30:29Z), 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/PLF242107996.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x666845f28db8b299dc4dacc1be144cdcab1e89c2ec3b96f277081354d95d4b51. 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/PLF242108354.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd6f24e20110276a420ae0a2e42aac65de78ee3903f1cba90c618d629c0e4db1. 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/PLF242108315.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e9537fa40766acaf83b180b5ac5e6d46eff26cb3789300449c9c9d5fad0ace7. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/PLF242108338.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaccef296e77f04a6497c6b9f30099324d56f918ed27ed394f6f51c6813b4b4df. 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/PLF242108311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a9e67384416e1e1d852ceb8f433fa6a9751464f92b540ae44ae556fb46ffdd4. 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/PLF242108355.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10eca270bf6dcc7f64315cf0ebfb767471f75e32a91eca8d467ba139a3b13e13. 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/PLF242108229.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa57b58fee1fe8ffce1cd487e6dfe9ce9541bf2767ab2becf8d5995d48ead1187. 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/PLF242108356.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10ef3ee857497fb7c7d5df7c0edb73abf36aa652d60b46bced8a6353673f8066. 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/PLF242108359.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9687d41a89b4a8b04c9cca900bc393d79a788104da8c95988a7b8ce6cb970aef. 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/PLF242108360.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a50b768af5f37b90abb1470b870ce2e086da1f4f02dea578363db5fbb13e9c6. 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/PLF242108361.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed3f0129548627c94a0c5ca7e0f84725d1bb1e60da8b5d3ab1c43fe024025b4c. 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/PLF242108362.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07da302e42ff48d057fd027188d39f9acb397cb93d415e245a343ff86d173978. 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/PLF242108364.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10eca270bf6dcc7f64315cf0ebfb767471f75e32a91eca8d467ba139a3b13e13. 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/PLF242108229.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x749065ab6780bc0cfffab0aaf5e24677610feb9bbcc78f44bdc940e9e4c169f9. 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/PLF242208957.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x894ea8b90a5eb29929b566f27f7940452af23549deef2ecb3f3144d12a2c8d8e. Chain 2 (Bitcoin): anchored in block 958104 (2026-07-15T05:34:05Z), 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/PLF242208915.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59dcbad0b86c9257079c2bd62e1dde70218c8fa14746bb3b28665beb2d66ecbb. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/PLC062236405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c235395b658214a1fcc79fc11e6d1621fbc429ab3eacd97bba3be0b9a45404f. 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/PLC062248175.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd26e45a8c0ff395bb42fd1b4ba39c33412730b0d1ef1c5d0379e9c5edd6bd26. 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/PLC062259926.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8763b60f0fc64841540bf0c610f162f296a222ed1b4794e50ec657023cc506a. Chain 2 (Bitcoin): anchored in block 958142 (2026-07-15T12:51:57Z), 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/PLC062369296.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf563cf642c73bea2279bb939c49b2dcbaa29dc50dfcf835f0ae461c4767d45ff. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/PLC062373042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf1f6d4cc555b6fdb998ba0c2217798bfcd9494c41dc32f5fd8e80d12525272b. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/PLC062380807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2cb88ce3613bab99030c5064a042ea27345d7aab263c6468209062ff857eae6. Chain 2 (Bitcoin): anchored in block 958346 (2026-07-17T04:09:35Z), 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/PL89B2400002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x777d4ce5efaf2095b8aac8cbfed0d0aa6448f9cd7efa1ebfd392f0b7011cbb66. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/PL89B2400004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0161b556fe5ecc242ced96f7cece411e7add674f71503729afa3a0dcba5a31f4. Chain 2 (Bitcoin): anchored in block 957919 (2026-07-13T23:58:45Z), 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/PL89B2400005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ed09261e2b7add4bb85079556d66cf082ddb60bfc4a0d3d6166d62a32e35727. Chain 2 (Bitcoin): anchored in block 958238 (2026-07-16T04:30:31Z), 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/PLC062424658.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb6e1010ed3653fea34c06ea6727b6adb2ff75c5666b70316dc3acfe859a631d. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/PLC062424659.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12a35dd2ff287419a164df1b3215e6637d7a8d464c160104c1c4d9d5233d9bf7. 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/PLC062424660.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40e999f7873ce9b2c150322afb76d5ab68f0c1fe63381aba26f1b21ad551054b. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/PLC062424661.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e6cce325ff2b204a85222034c2fe2dbf29ea32e17b4028770d0dd9751da80bb. 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/PL89B2400013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82108f8681523ed35bb45fc767cb5a3793ef3aee1bc1b47e3403290f2e00c67d. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/PLC062502036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb4c51c2510c06c090a80d671d3e6435649ee3489abd68135b18ecd8eba5fc1f. Chain 2 (Bitcoin): anchored in block 958430 (2026-07-17T15:33:28Z), 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/PLC062532126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1412218bd5347e00a1ab4928a6a0b6f697f513523319cfa9e386f05a264a622. 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/PL89B2000208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bdc78fc7f4efc70b834b9a030970471723c2649e44adbedcfc1144c1854a157. 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/PLC062010186.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b4fcd7bed12dc3f921fa3da1a388c822c17eb602bc2b45a19708b43db27100b. 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/PL41A2200024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x368dcc110f3c11218de4c860f504abfad6fc897fbffd6032ec36de72b42224c0. 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/PLUM72100646.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc1ca72877101f956e6878ff0aaf644ff6cd71ae0341c7cb09ab27a7dafaab56. 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/PLC062010136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d31bf6230e5a25e99d300b484c63914705c985c009a452aa5e28a3c5b241847. 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/PLC062011005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3c7463e0d37e46afcdb14ed5f656781e0c3fd38be9197a6d1d257ec4abcae3c. Chain 2 (Bitcoin): anchored in block 959145 (2026-07-22T15:39:05Z), 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/PLC062226171.
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 0xa8986b23e4bf937afd4ac63a29bd39cbfb5e2d2f59bdb54d7e60a001dff052b8. 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/PLUM72000644.