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 0x07f1603cf705805c3f798fd40f943777efcedcebd6dd6caf1ee090bc408d77bf. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/84ddac2a-071a-4295-9ee4-e03b98b2b6a4.json and https://artists.proofprofile.net/proofs/artist/84ddac2a-071a-4295-9ee4-e03b98b2b6a4.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 0xe0bfb681d17df73311ec7acdeeb66f2e83b538c01148b062203f89e603ff2eba. Chain 2 (Bitcoin): anchored in block 958054 (2026-07-14T19:33:24Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USCGJ2189670.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde2cc21c5410984f758ff15d8335bf3d0a381566d26ceef8b12229d02cdc243b. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/USCGJ2189672.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c6b46b011968ee84c1be17b0abd01ffde33bd6cb294c30f7152c2e34bd0982d. 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/USCGJ2189673.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f0f1baa0c345e1de338460b6e9145eecc710fd64778024fd883eeb425451ec9. Chain 2 (Bitcoin): anchored in block 956397 (2026-07-02T21:02:00Z), 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/USCGJ2189674.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d786aacaaba48c1e5360f4e04bec78dec7051ee328f70f7107148f7099d7df8. Chain 2 (Bitcoin): anchored in block 958058 (2026-07-14T20:20:34Z), 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/USCGJ2189676.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d746cb4fb53ef12f796fce58cdd60c9444fecba9b197dc04e706ac85e15c179. 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/USCGJ2189677.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7720bba3103b9b1b9840485bb85a101e33731e9dfc45928f96e6a09b0b47a3a8. 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/USCGJ2189679.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb76046e3d0f83dc0fc860ae64b96fc79a0086bd7a8d0a0a444d2a80ec7682b4. Chain 2 (Bitcoin): anchored in block 958667 (2026-07-19T05:04:54Z), 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/USCGJ2189680.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbaa7ebffc4c187bb7f3c796a97c6296e600a3ba8dab2f4971c2d01b1a7ce541c. 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/USCGJ2189681.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8fc6b881e3595289a89db6090214f2e390c3bb745975d2cdec11b1f25345135. 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/USCGJ2189682.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd51cd2d42679a59bf6517a101be80140060c5b31c84e15d60bebf939233ca1bd. 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/USCGJ2189684.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3751b73c8248fe6454ea82adec0c5dbdd132dc707e5df2fba50a09c6c8763abf. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-16T22:37:47Z), 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/USHM92181950.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27fee32f6246abf68bf06150812772dcf24c9c35866e68f00b160b0e51f7ca40. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T14:41:17Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USDY42116819.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d736c4e9fe6d1665d57f71fa8b93d9fb4e52da142a2681f16e447c2cfe3d342. 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/USHM92125478.
Epic Music: The King Is Dead, Long Live the King!
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46f7ecefcdf5eb6cad160c4d3c41a3c7f1b5db446a94abb32435518d6d857fa9. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/USL4Q2125977.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbae06a88d877b08e9d61dc5af977298af1bd775c255c21851741f4cc392b44c. 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/USL4Q2142357.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x022c8ace34e08543c674d0ed7e649049c865f7b6bbb4577720e4d3321ceee994. 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/USCGH2226417.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xece6bd2e04569af8983f96a11f85d39f6ce4a684bf5414e2a36ab768750b399d. Chain 2 (Bitcoin): anchored in block 958935 (2026-07-20T22:08:19Z), 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/USCGJ2220514.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9872ca2cf2e6213f421c5c66996f3be1fbb47bc901ddfa5222fd474fe35e2a01. Chain 2 (Bitcoin): anchored in block 958058 (2026-07-14T20:20:34Z), 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/USHM82211255.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81440e94f1e76143c4df9b2f252d309cd0d06bd85151dc16251dc111e7ca2b9a. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USHM82243764.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf8101da10d1535feb8a3c740f2e2292be48bd5de18be7084e340581cc219cbf. 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/USHM82286070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37cae37630730dfa39560222c1ad5ac086aea0d177b60347818ea00e7c9c83dd. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/USHM92297281.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c6cd984ea7267d7f037e525b68812b747fb02b1f61b73980a0f2f667dcfa6f1. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T18:04:38Z), 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/USCGJ2376436.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccc2c19ab00e8a254d1b9798bfe63c581575ac129c3fb8ab4e3e782eef1fe480. 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/QZK6K2386651.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2af8417113deae90fe77e31f8dd2df3ae360a562c4561af133b873e3ca4b6fdc. Chain 2 (Bitcoin): anchored in block 958322 (2026-07-16T23:23:43Z), 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/QZMEM2326393.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6aa2b0012396047451eb0ee2adffd7ff1f21231afb5eb978b33802247a8f713b. 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/QZMEM2326394.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79fc8e882bc2fe74ff197d83a6a97447f0d349c263e9334e2511f7a156c80ebd. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T09:45:25Z), 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/QZMEM2326396.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c787f5ba4bb0c5de2a33da38b6440371fbc4cf80d0d2c09f55c7c60ca68119a. 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/QZMEM2326399.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x081c7eca4a5ec43c304942205653b527c72152f010b1c3d380a1b4f6dd59c0ee. 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/QZMEM2326401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33eccec95142410dffe962cdf55f46ee2009c330435a7c58a505db37604ed964. Chain 2 (Bitcoin): anchored in block 957892 (2026-07-13T18:21:16Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNWT2329066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72f2b48861f03a57ec781f857e0c75d7530a1037ecab54c467d439a32def296e. 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/QZNWY2333150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36696e8cecbf54e6bc4791a8762fdca77c6e91a75472483f0c8d36049a675c15. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/USL4Q2345117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb93001974cb239f17107ebc0769f926a2e699689b16b218188460d4ada9c4f8. Chain 2 (Bitcoin): anchored in block 958142 (2026-07-15T10:09:30Z), 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/QZTB42365693.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca7dd1429114b16c2b5901f268eed2bef85c18cbcefe42dcd9f0789f0df1abed. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T14:21:02Z), 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/QZTBA2347046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7098b28647db30bca8380dccb24c1a6859cfe76078815d21b11e3dcfb5305265. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZWFL2366250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc6f84d02e52091073d07f79891f367e6c22702c4c952b7e5bac0a6da1d7f2d9. 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/USCGJ2430100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfadb5d85ffcfba010c026931552cbd08d565e9440e19e000091787326f2bdc4e. Chain 2 (Bitcoin): anchored in block 959010 (2026-07-21T13:22:35Z), 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/QZHNA2438876.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe630d7a61442e2494a17a34b7cb9763bfac5dfbdf4a67ae74a98647f7466564a. 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/QZK6J2433667.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc7b2cb9cc64115e18f8edc25d0fb0f92b893cf32b2c01849f63fd34466101b2. Chain 2 (Bitcoin): anchored in block 958051 (2026-07-14T19:14:42Z), 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/USHM22461247.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa10da5e73329146d216936a3ffcb1f74a65afe4dcf0358d720aaf7a22390b9e1. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZPLR2414120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bea112f942d1190317a921f8578c901659b1b5073cbfb0e8a67efc9e1d842bd. Chain 2 (Bitcoin): anchored in block 957852 (2026-07-13T11:25:45Z), 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/QZMEM2582446.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d8674dbb679a2822efb7c6c3bd74d8a2eaedb04b77b3402405be55e56b1fd94. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/USX9P2518175.