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 0xb6d40f77895bd16d162249418ba6c7e75b1dac5dfdeebb2eb73feb3851740d7d. 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/57f74cc8-2359-42f8-877e-748db4862a53.json and https://artists.proofprofile.net/proofs/artist/57f74cc8-2359-42f8-877e-748db4862a53.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 0xd80e003e038cfcd8acf921a6b4739a3b5211e83d24a0efb31d788f12d33e19b6. 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/IEAAR0800035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f3b2896f1f728bde10c4828652e96964a92f3c4009e4306d6c5fe3b1e9dcce2. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/IEJZN1400001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14de4d440aa7c816f4d9f923b9430a407609f49e9db1348a3d3a0d1fd46c070a. 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/IEJZN1400002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb39233750b76f7d6802d6ff0916c31d6b2784d68417cf4ddd1da03e4c6b1205. Chain 2 (Bitcoin): anchored in block 958350 (2026-07-17T02:31:22Z), 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/IEJZN1400010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc69277b998b1a0025ece5888e043a512b3e6198900954643abd3042ae6ed94b5. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/IEJZN1400012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c826f950531ce01dec5a25fd34f2e4902d98dff906ba012183bdbdd1f616d13. Chain 2 (Bitcoin): anchored in block 958397 (2026-07-17T10:29:45Z), 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/QM4TW1519563.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bf583812e562363995abe80dc2401dfb2bdc85c9034fa7fb79473c7927e23c4. 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/QM4TW1519566.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf27b92232e23c117d9352b6365d4017a5da531e0dd5d2ba60e6c6e54aa52a64d. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/QM4TW1519568.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef4504cf3f9451cbe5521e702b4762ec04bc9a713a10fc467d5965cabb8604a6. 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/QM4TW1519571.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a806ba39b7705aa1872a86ccf9d12aad9234472cdabe3e82f85b1022ca66f5a. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/USHM81745884.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60fa9308f992cbccbeaf1d967c67c83833327e66babab57766463c2ebddecd28. 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/QM6N21823197.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x008307b24b1e11e5b3d11f603ec3ced193aabcca46e98b6f84f98f9271a68afd. Chain 2 (Bitcoin): anchored in block 957668 (2026-07-12T06:54:37Z), 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/QM6N21823200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e563ce015c59e93bf708e31986519d737b072b5abc995e503c5316d7443ab5c. 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/QM6N21823202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa93b6a532e00e7d8867481fd5d92bfb836ba7132fc8649fd08c7b8968ffd08bd. 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/QM6N21823204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x281301b0a96f0c6a1050549e3d3a25d3c8def301b885d717f524a6417ba6c0a3. Chain 2 (Bitcoin): anchored in block 957671 (2026-07-12T07:35:31Z), 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/QM6N21823205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78028c074715895c6a26011007f84913d75780e5ef7a761441c5499a0d9e2ec3. 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/QM6N21823206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6453539e8e11ae5ab3cf8237d9a63063988491948b682c2bab1e5dcd819c2e6. 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/QM6N21823207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f45f6f054ec42ce14ccb6ce47d43bcf986feb3c4eafb619fb0ced925a171aa5. 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/QM6P42219316.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x193d75ed0c5fb4320b0fdfe7d1e722d67592eec3d104a795cf82da75ccc091c2. 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/QM6P42219318.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9889b305500367ee2edf39a4f3fc655da31bb28e88669eac0d4110cd6b2d6491. Chain 2 (Bitcoin): anchored in block 957671 (2026-07-12T07:35:31Z), 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/QM6P42219319.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c6c613dda0938555c7147b612da38f4009f1923ff6edf0f8d799255794adf74. 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/QM6P42219323.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb26875b9743645a56bced11d617321649355b5f5983c621a479ca12a1560b6ea. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/QM6P42219325.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f5535698635bcba7a7cd87ac1650ff31e9b2845cfbab6aa5dcd4142175e9ffb. 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/QM6P42219326.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x096b41647932b36f93b6e0aedeafed959bfa684eba256742eef0556a4656c81e. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T17:49:07Z), 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/QM6P42219330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb90fb375b8d48827d753f7e4b6c8c25fe24a389987e347a2b543df1b788c3c91. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/IEAAR0300200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb90fb375b8d48827d753f7e4b6c8c25fe24a389987e347a2b543df1b788c3c91. 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/IEAAR0300200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87224563f47f5de3e9df5820a363c79beb55571e3330e3833091b585227e361d. 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/IEAAR0300219.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5dad5661c52714e23669e63d9c9af5fc245eff4d2026444152fc4355ad4155b6. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/IEAAR1100105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb90fb375b8d48827d753f7e4b6c8c25fe24a389987e347a2b543df1b788c3c91. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/IEAAR0300200.
A Time for Touching Home (Musical Gatherings and Homecomings)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb90fb375b8d48827d753f7e4b6c8c25fe24a389987e347a2b543df1b788c3c91. 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/IEAAR0300200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb90fb375b8d48827d753f7e4b6c8c25fe24a389987e347a2b543df1b788c3c91. 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/IEAAR0300200.
The Irish American Collection (Music Song & Dance)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb90fb375b8d48827d753f7e4b6c8c25fe24a389987e347a2b543df1b788c3c91. 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/IEAAR0300200.