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 0xd1098859b65ef4d2fe17ff05bd2cbf33f0830a7ef16bf8a7dd81f133d7d8d287. 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/35926265-f335-4c2b-88db-63dee83c879a.json and https://artists.proofprofile.net/proofs/artist/35926265-f335-4c2b-88db-63dee83c879a.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 0xf0639fe8808645ee1d431eb6ceeedf63a67b3b5e3bc30658d9f466817831be32. 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/CZL591500019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae168331bc221714b01c9d340d9d60f065dde595c518498aaa856b916b9d01a7. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/CZL591500020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x430e4232b14ae946d9b1cd235c44f27df0cf10bf5a2460f8a5497a722c50af81. Chain 2 (Bitcoin): anchored in block 959076 (2026-07-22T02:31:33Z), 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/CZL591500025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0de24da52f66d60a696cffd8e93f1e83a40068459dc109aa31471c0005bbd2cd. 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/CZUM70700323.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6fa677d9f06d067355bf80d5556a251a766efeadfc09169438cecde7314102e. 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/CZUM71000133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefbf78f2e943f678efd1ea7e8202787d91cb86d63a325989a5cc24d939e85c68. 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/CZUM71000084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb529ff145b0f3345b71bf9472744628e6cdc4c492b3fcd72090bdfcde39b058. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T16:14:34Z), 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/TCABL1221065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x644f837776c070bc23a66fd1d8f836af9eacd12ef6ca0b1a8451b2cfb4431bc4. 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/CZH661300027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80792163bafcdd71de59f79c815a014e9449c086669fc9f4f9d98e67bb912722. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T21:17:38Z), 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/CZH661300028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa70e6747374f4905760d6710d9abd370241e9f28c16b22c7ca1111c529af8adf. Chain 2 (Bitcoin): anchored in block 958996 (2026-07-21T13:25:53Z), 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/CZH661300031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28c736611fbf4fd48795e9b610aca42796011c16ed59ea0783c6ac6f86f365a1. 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/CZH661300032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0378a762682fb86fc17251e6ca61ee66964ff99940e4e6d4572db78af319323. 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/CZH661300024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb45cc45fdb9c6356a4255365dfda974d5ff8f9f621349ed31b7c7f641e1b7ff. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-15T22:40:25Z), 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/CZH661300025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x644f837776c070bc23a66fd1d8f836af9eacd12ef6ca0b1a8451b2cfb4431bc4. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T10:59:31Z), 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/CZH661300027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80792163bafcdd71de59f79c815a014e9449c086669fc9f4f9d98e67bb912722. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/CZH661300028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb53f907445418e46b01db4f226ee16dcc25e8c2cbb070bccdd9bccf44c98ee45. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-16T00:27:07Z), 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/CZH661300029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d9ceb6cdbac75e9a58e7da18b89b13b8578013d8530f5a29d640cf85991e404. 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/CZH661300030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28c736611fbf4fd48795e9b610aca42796011c16ed59ea0783c6ac6f86f365a1. 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/CZH661300032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bbf3eaf3104d6fcaa04b12252df70cb1ceab87a1c462734682d839d0659a82c. Chain 2 (Bitcoin): anchored in block 958349 (2026-07-17T02:28:59Z), 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/CZL591500072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2be5e8498142c7bdedae2152939d2de4fdf92eaaaab03134e213b87ea4a14526. 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/CZL591500070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35536eea8c327089ec02b836e8db26fc017d952d34012f859a9a25847f5493a4. Chain 2 (Bitcoin): anchored in block 958552 (2026-07-18T13:15:29Z), 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/CZL591500074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x486b2efd1670cc4b9b8de1f3c41f45b88a524ed37621a7bfe3cdaa4644e705e8. 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/CZL591500075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bb4174d0db0b1cf0ef880628008322a0029197cb7191e6ef162cb875814eae3. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T23:07:08Z), 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/CZL591500076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90b90d78b7516bcc040c674f75a93de00322871cdd89ece68f8171e41a246db3. Chain 2 (Bitcoin): anchored in block 957866 (2026-07-13T14:54:25Z), 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/CZL591500077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5285a84d9993f89c67c071b56d2ab16b4cc1ecfe2171b2527deb20619519b84. 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/CZL591500078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa66463a303aafc00750c2f5ec1cc9d79a1f67c6ce45a6a60cf058e48104755d8. 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/CZL591500079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x717a269e794191128e7755fa8173ca0070f52bc149f673a2604a2e789e18ca45. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/CZL591500080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdffe4902c76015fe19d2b13ab51a27ea6ce53e7d3e9853f2a556a53bd4df584f. 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/CZP961800104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07e0ff0e1edc651157a258f18fdd96a6e4bd3cb9464997c4488822d16082f9cc. Chain 2 (Bitcoin): anchored in block 958121 (2026-07-15T08:02:12Z), 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/CZP961800105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x380719b1e19a9697bddb1437139d2119076a5c6778e4e83821e8da094f073ca5. Chain 2 (Bitcoin): anchored in block 958673 (2026-07-19T05:38:28Z), 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/CZUM71900265.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd43e41cfd88a6a742e80cfc9f95fd6a4008ef7472040241eeb69438a69f75b1. Chain 2 (Bitcoin): anchored in block 958401 (2026-07-17T11:10:25Z), 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/CZUM71900461.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe95f71213d96b0c9e05cf7a2533b8810b2bb1f98e95c410ad3570f3b9c36b76a. Chain 2 (Bitcoin): anchored in block 958996 (2026-07-21T13:10:50Z), 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/CZUM71900462.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x569c752feb9213b730e0a56d65de77c06e0b01d0177ccff57a20bc7f3271a099. 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/CZUM71900464.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91754720c9cac0ce37495f40239b173c7cfded7eae4fd02e761b3b52bedbdbdc. 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/CZUM71900465.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba6825f3d45c7a28ef904377e9b696235324a6f256015683fee0fb5a1c6209ea. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T17:44:56Z), 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/CZUM71900466.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccedd5ec5ce62b31ad5eb092c37df1b0de0c78e5a08b60ef077589f38d64afed. Chain 2 (Bitcoin): anchored in block 958517 (2026-07-18T07:54:29Z), 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/CZUM71900467.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3fa81be007260ab18e477602852c096a689e3888f7ab481ec1cb89df0316dfd. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-17T01:03:43Z), 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/CZUM71900468.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x462c71c00cd7749904a465c68a7820c71449a49232b7759106872a9df15bb311. Chain 2 (Bitcoin): anchored in block 958121 (2026-07-15T08:02:12Z), 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/USDY42097063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c86415f0086c7d117cd368275a2d3ff1719488cd6cdc9eb43f82a326e3f774e. Chain 2 (Bitcoin): anchored in block 956637 (2026-07-04T10:56:23Z), 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/CZUM72000650.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa75fca3b04bdf899c47989c4308cc02bca7bd735cfd242f1178b41a45bb9c8b8. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T09:16:54Z), 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/CZUM72000927.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb436ad998c3683b13331208c13ce73183a4f1c35bd3f8728fa222512e5341d18. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:05:43Z), 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/CZUM72000929.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69ea1a3d5791deff44b0dc4e9d733898649a215bf15483f90d349688e63802eb. 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/CZUM72100204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66185c784413dc9b291a63ee0cdbbaebe0e04bb18c813ab8cbd33ccf808ddc23. 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/CZUM72100397.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26dc02162e6ff2479a93c74bb313b2fd23eaf2e56ba9d462b108d98296413484. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T07:07:52Z), 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/CZUM72100510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f2253078c8bf95df2ae6d445c9b76ba25baf57c4d232abf8a65e9e059905c1e. 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/CZUM72100512.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34b3eb46fb9f7bd6e1a76a3b7c1a9ff76d0297a8ba4bdcec1a8fcbdf86eb1dd1. Chain 2 (Bitcoin): anchored in block 958697 (2026-07-19T07:58:24Z), 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/CZUM72100519.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48d97fa95c51d986ad6e3017e64000c1719797533153c9488e8309dd315ce00a. Chain 2 (Bitcoin): anchored in block 958202 (2026-07-15T21:23:21Z), 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/CZUM72100520.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1d778daea4de9a2d28b69685bc4be9168142ceb09a3d496b02d06b2de62a08d. 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/CZUM72100521.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb7aab268d92808011c528dabadebfde6020ccb678b43b8acbf02c8cec1a7f47. Chain 2 (Bitcoin): anchored in block 957866 (2026-07-13T14:54:25Z), 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/CZUM72100523.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x671f61193b8387559cbb4afb086a2e649f9190ef2fc6da85ff06149887b86f12. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/CZUM72201092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb340e5f27616c90f1ac0a1e9b324941a2de1bfbd6bfc4bdb9150539f8c60a721. Chain 2 (Bitcoin): anchored in block 958407 (2026-07-17T12:08:48Z), 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/CZUM72300465.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c50563313ac2c33c5d3e8847950a1d8f4439228b46c042132544ee391d2d7df. 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/CZUM72300468.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32a36f3dea571548e1658ea9ec584a31de3276df3f5e5c6c65f5dca2737f736e. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/CZUM72300107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1fed7f5542fce29a22644dccd6c02c8af675a7c7f8c93c23817c5d1903f4b69. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/CZUM72300469.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x602f08bcf6e0c5057733d0fae98b51b2014ef02cc83fa7ed3a13366ec09dda10. 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/CZUM72201208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x820e65639185670c0035eec852b2d75dd4eb99738b289520960a06e7738d22e5. 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/CZUM72400127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fe18d4a1d22f341631a672d5008574e0fbc5e238b6b4c4d7f670be4d0248886. 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/TCACU1655378.