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 0xbd10f3f62ce8de696dfbd956e77692dd6c4064a1c8263ff8b7694574fdbec2ad. 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/8cc4f206-f900-4000-8038-021ed87c5aa7.json and https://artists.proofprofile.net/proofs/artist/8cc4f206-f900-4000-8038-021ed87c5aa7.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 0x36d3edf3e35927d14859c849fc796ba255da9495d3f6c102b6be86ce1a2422dd. Chain 2 (Bitcoin): anchored in block 958436 (2026-07-17T16:42:22Z), 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/USHM20760121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ccb86cf84bcb8b1583099772ab2dfe3969a60e483d90132c64a1bf6ace0e179. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T01:38:51Z), 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/USHM20760123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8e54325fac098acef3ab649a2d114c13378127679dee49f3b2bc318c8579bd9. Chain 2 (Bitcoin): anchored in block 958541 (2026-07-18T11:37:54Z), 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/USHM20760124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf13dcec5ff934aa2d386da0724992af52748695e8a1425f818445d6aeaecd37. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/USHM20760127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x927d2b3bb34b6f0098e25abf198659ef50cc7715bbb70d447dd2e5f0e464a4e1. 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/USHM20760129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf23697005c48faa0dc0c69a6d165084d6268ed2652667da500c3aa0e0da88935. 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/USHM20760130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f0db160502a43f4487ba472ffd50f43798135608ae959507fdc48e6c39338b5. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/USCGH1118779.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8547a3965a960abed3f2963d36cddd3d51b6052f45e93ce12a5f75dfd518731e. 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/USCGH1118787.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb3a8f914abf1a610d8716e17b7867524589ed00a41326e0d236f34a17d7b017. 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/USCGH1118788.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74584f7c7da6a0e1c8fdcba4af2aebf499d43af9d0b3644207f0254fce81f382. 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/USCGH1118792.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa89e297ff57d2fcc2a308ad02a6d55273633cda001cf0ff6c548c7121c65ec81. 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/USCGH1118793.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x347392ed7328f801d43f26c80031286c3eaf8720abf3fe9cb68369ef99c0ee08. 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/USCGJ1178662.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66b7ba8b63f8ddc4a05ce33a176562cefc66528f09154cc3658a7a82eb451bee. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-15T23:24:33Z), 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/USCGJ1178664.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa26731622a67aa60a3d8eca91fcd661cb58144d4f16d9eca3f9f1ed3808462c. Chain 2 (Bitcoin): anchored in block 957587 (2026-07-11T16:48:26Z), 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/USCGH1374251.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4f359a25a98c28fd0a03b4d58925a8a0e3cf542cefc8c32a85394d422bb29c6. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T14:49:59Z), 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/USCGH1374253.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99815d5dccfea887e1410ea082d0ec92f4e3f748de7607cdb154477f20413725. 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/USCGH1374257.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e5c6a8a963bbfe62544508ed9acb0a7513fc82620e43a44662b7c56f6a3d8bf. 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/USCGH1374259.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5662ca70e4e71a6ae466501f32e353f39fea478d74190171a5d88a0de9fb0830. Chain 2 (Bitcoin): anchored in block 959008 (2026-07-21T15:41:20Z), 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/USCGH1487320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88890fe869af4819b729a66d86b2440e6e0ef092d4f03ff658594f652672d063. 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/USCGH1487323.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83be68fc0f7c42a5784f34fc13bf567e02ef24e478394812631c8dadef13fd2b. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:01:16Z), 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/USCGH1487327.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30f674378166f5ef7d4bffeabadbaa96a240d2181300ec17676aa66af048bf30. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:20:49Z), 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/USCGH1487331.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2015bf1de998c0975afa3c19068d680615455f8be10859e668b3a04a85595ee. 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/USCGH1735338.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb040a5a429145bdb65f31dee5f45372c21fa571379a5b7387bc5926532766956. Chain 2 (Bitcoin): anchored in block 957591 (2026-07-11T17:21:30Z), 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/USCGH1735346.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b59b792d6ff31cebf9d9b0de2b914b50d0cf26c369c95bd9272faf972ed3c9e. 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/USCGH1962276.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf13bde43b3c1aace0dfe43864b062ec8efdf3d415ef661704d1871ab806ceeef. Chain 2 (Bitcoin): anchored in block 958329 (2026-07-17T00:29:15Z), 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/QZFYX2046094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73acb6e5112af0a54506a618ee3cee9e28f0877500137f6f61784d1d738da33b. 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/QZFYX2046095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7347dea5551f6205b97511c17c3d2b4ac7cf528f482fa14888daaca70cad98ae. 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/QZFYX2046097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x032f4344b35ac931d7c41bce8419ad1a5e85f1e748672ab050cd48c94c62d297. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/QZFYX2046099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0e22c661f01c4318934df8a96c5f7d337aeb7989687a1f56adb112d7f99edfd. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/QZFYX2046100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd24c4b15d06763a7caebc5171154c205acd38eb8e38f9314d0dd86053ce204a. 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/QZFYX2046102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeac846663bcd2ca88b39559c964d285d03e21a23813080a61f1bf9811937185a. 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/QZFYX2046103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22860d0d65f931850652a031efa2892abc61d0e0fb3e654d85775015e1d79a1d. 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/QZFYX2046104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe492a17b0526bd5032255cdfbfac0be615788823db5fd28c67e31e6738f60d6. Chain 2 (Bitcoin): anchored in block 957576 (2026-07-11T14:19:48Z), 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/QZFYX2046105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0c0f51c19c0579858576ce760990f7c441092b4f3444da50c01c1aac5efbc3d. 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/QZFYX2046110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacea56060860d790b92a454c2b2e7bd92b1357d93019f2fffe38c796267b5a4e. 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/QZFYX2046111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cdd48fd676329e179eaf8190c56e95b633cdcf40ea315ee5552e1717d7a1ac6. 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/QZMEP2036497.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11af04c5a45c03c41d88559294e705c50cccee4b6483ab4f067a82e9ca78eb4a. 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/QZFZ62254082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79ebdd69a7610185caed75d7e78c98a7dcc665044c178a5af32673661c203f62. 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/QZFZ62254083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedb69440a8e727d29034c4024f3049b7347665c9ea3276c496ce65bdfad0621f. 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/QZFZ62254084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa418e9efe7cb6a018b5b714da26d2497cf31488731330549ab70c397933cc2f0. 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/QZFZ62254086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbf02d2b106cf0b09938e6613125a134d97e1b3e36f2727cf8d107e20d9cbd2e. 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/QZFZ62254087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f3fc70c4bed132840feba800c764895a4853006c676b4331bd0b64ae4dc6393. 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/QZFZ62254088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe7032b74109034675bfad0a8f1aaea725ce04050d0a88cf7a2230bebb7bcf2b. Chain 2 (Bitcoin): anchored in block 960209 (2026-07-30T05:15:54Z), 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/QZFZ62254085.
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 0x26cc1b702470c7f352956b7ca2271c32fbcb57bf5003d23a3c4bee986e2d609b. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/QZFZ62254089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf77c14345390095aba496ec424883376af3643c5f3704b903d23911ebbe0e01. Chain 2 (Bitcoin): anchored in block 960379 (2026-07-31T09:25:34Z), 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/QZFZ62254090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef67fab62fd2ea0a1ed70cdc902c6da482ef2861a98db30250a5331e78fe7d11. Chain 2 (Bitcoin): anchored in block 960209 (2026-07-30T05:15:54Z), 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/QZFZ62254091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3657882524aef4dea5319b645bf205e5de441fabfbd392d0663cbb6e6f4ea8b0. 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/QZFZ62254092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x228a775b6fb2f03cbd279017decb4a02ff5d96acdc1e81b4a92229051a2c6853. 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/QZTB42250143.
Ki Keil Melech / Elul Nigun Live in Jerusalem 3
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0de4ea2874da15b60e70e6ffe5469d89f25feb46bd9d2f0073226be309c1da1. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T21:13:23Z), 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/QZES62325303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6428b0c4ed70d9f7ec20f31cb8c7217943b0062a2fb1faba0bccbd4780fad8e4. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZES62325307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39dcfcc5b7dfcc587583153c70e54b413d084309a80d72c379010152783708a0. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T03:24:29Z), 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/QZES62325309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee0d1499f816d1ce72d334ddbb8de72abdc3ea358aded55322257e21c82aec9d. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/QZHNC2395927.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53e497714e8d16b052063395865068d5a49ad362dcb0f33ccc4c24bc046ad3f4. Chain 2 (Bitcoin): anchored in block 957596 (2026-07-11T18:43:56Z), 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/QZHNC2395928.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93f28b62e24056f70f8b307ae2b851cd4e93272bfe089aa97bbfe8142b8a8fdf. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-16T01:46:45Z), 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/QZHNC2395931.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef852f6bba22fbb27ece84626f2654b205446c8a85f667a6d93436b3a5592621. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T14:24:02Z), 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/QZHNC2395932.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6958649b795dee28684d6ffa32b5556e0a2f4f163616d3848bd74f8307669cf1. 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/QZHNC2395933.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x257ab3d634b20e9ea503a7eaf86d92620c17d7fea3e747453838c9fd9f71772d. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T17:05:58Z), 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/QZHNC2395935.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f8288ab1eb1e9c6f0d0398cac748f724fa2a171fbdab89590b31ac86ae40442. 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/QZHNC2395937.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5226e694379c798161ad512b7d23b0ca61e05ba8cb6ca2dfedfe3d5ca6a5df4a. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/QZHNC2395939.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58b711189a2b62dff10b1c588ba8713b89002c71b90a0ead06506b60e40acd62. 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/QZHNC2395941.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ffdcad1356937694cb265a57b9292a91191564466fafee205ad26e1cdb6911e. 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/QZHNC2395943.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51ae6af5b975c84fecf64103482f04bd94afe30aea08443628927e7eeeac93b8. 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/QZHNC2395944.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2822cb99a9039d14b16c371014c2cdfe2e4631d9110ccacbf652737a41c70808. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/QZHNC2395945.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a1c487b851bd9bd8af13f605dbe0e564ac9f7b97102574548df8e1674205c46. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:07:02Z), 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/QZHNC2395946.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f4dcb4ba71d885bace9f853f0622dd47c886f288cac8f2ea55d6dd2df7f341f. 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/QZHNC2395947.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0a993f2866cde0b2e86b2b855d30dbd317157ab371b37e8781109b50aa92227. Chain 2 (Bitcoin): anchored in block 958959 (2026-07-21T03:51:22Z), 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/QZDA72450114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x889661bda848bdba86a17e7fec91d9f15f942455a758613e80ec45fb5eae9bc5. 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/QZMER2491835.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef35a676f63d6169309f64ac27a41867c021303218f7ffd75389693d0e2d2027. 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/QZMER2491836.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf317872dd5432ab6b62e4bd436d0b2a799c4e3fc73ca663fb136c92ed75d1335. 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/QZMER2491837.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c1479a04f25dd5559a0aeac4b513ef7b10b84fa3b09a837f041a0bfb33a1343. 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/QZMER2491838.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1e76cb40371405b276461724cc84a099cfe70d7e97ec922c875738b5063c430. 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/QZMER2491839.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcca70e1628266be92d951bce4631c43e726fe6f101d3b32119fee37055a9f5e5. 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/QZMER2491840.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb9c30311dd1d7c7223a3e14bc52b2e558e482f2209326644e4220a826d5b8e1. 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/QZMER2491841.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02e3226bb1b72279715dc3ef070dd6efdba5568599dffced3367a18725b20770. 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/QZMER2491842.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf063afb9e73ae8d9c961defeb986f8a78aec566f0f198aab92a353438415422b. Chain 2 (Bitcoin): anchored in block 956861 (2026-07-06T01:57:57Z), 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/QZMER2491844.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2c7c104642c2e4f4053470fb4d236304f1c7a0e42d66a5176dbed6da6492165. Chain 2 (Bitcoin): anchored in block 959137 (2026-07-22T16:47:29Z), 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/QZMER2491845.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x313eec4dc4c584895c317debf92f578393c3fa37053f51592874dcdc6d270cb4. Chain 2 (Bitcoin): anchored in block 959137 (2026-07-22T14:03:35Z), 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/QZMER2491846.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e4d88123372b8657d37ad6a031d9ddfc1747322d8eeea3fe5e212fce72717b5. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/QZMER2491843.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1606414f032288bdab4bfad1ff215726ef7c4553ba7b490bcddfac2cf3d5f79. 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/TCAFY2148382.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa090c02b46c2c368a98db6ba5845ab9b47893cf6903381e28fbd7e54763d8477. 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/USHM22085990.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7322c490686311483f61c0aaccc82103ca69985952fe10ebe06fdc8965f78c58. 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/USDHM1905553.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35753e10ef154426496780bb987d878494843fb26a12b00fbdfb42608e2ec564. 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/USDHM1905554.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a519f2614d515ef4be86aeb888372f599d59b31933806e94f9e4d4d7da1e049. 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/TCADG1788176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84b88f22b67981a1f2c74e1b0990a8e931e3a2599db9b5a4535b9ca7acc95db5. 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/TCAFR2175672.