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 0x58aac8fd13a8b6c801960ece92b7eb3ba5f699d212a2217921edb2e1f243008d. 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/fa1f34d2-75a3-48ff-bbc3-a58ce3eaf8aa.json and https://artists.proofprofile.net/proofs/artist/fa1f34d2-75a3-48ff-bbc3-a58ce3eaf8aa.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 0xe1c8c500b3caf9fc4e28269da5307808585c622a201daea99cc98edf87021771. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/QZK6N2314108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b452a534a3a17e1f3d8e9a4346ada48a798f8204eb21a99bd9bb70bc53a38f6. Chain 2 (Bitcoin): anchored in block 958404 (2026-07-17T11:34:58Z), 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/QZNWS2366400.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcabdf808bccbe4cb000fe465be1663b517bbb6b5744df908067b01cdd53fb4b. 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/QZNWS2366401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa45c6c6b02f6e163e57954eca2b9d90c74041ab1baa026ad68116e194ed7ef4d. Chain 2 (Bitcoin): anchored in block 958696 (2026-07-19T07:45:31Z), 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/QZNWS2366402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc025bdc1235b411e1b038984ba1a3fbb07ce31f5274653000c03fde206dd16ea. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T10:28:40Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNWS2366403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x947a0060c5d84909750ef26c5818e6da335127face16e662e895f00ff0dee887. 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/QZNWS2366406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10cf42f190c42f997857bd032d5714dd197fce17b4eebb8a84affd5b82528ba0. Chain 2 (Bitcoin): anchored in block 957741 (2026-07-12T18:30:59Z), 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/QZNWS2366409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5396cc3fb22babd89144aa0069a61504489fadf1a34282cf27a2ef541c5b39a. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T03:30:45Z), 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/QZNWX2381343.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25bdd22424e2c31f269964cad9e0c5ebb3ae734cd73719cb71ddcf471c2c7ec6. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), 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/QZTAS2304096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00d78ac8aa31d536a2804fbeeb123c00a96b35d924d3716576a1596a96ebb70d. 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/QZTAS2304097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf26cb24dbfb3f7eb75107eb8d80d44b3678d50ccbdeec2e4fd97b7a20b02108. 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/QZTB52368114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cb49a69b590a3971e435ab5354f07adf560798e79a90c527f6f72ebf62bd098. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/QZTB52368115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x936098a21d8c75db83ccc9555f5e3f3bc3a3d831523c1e723100dd9dd15c8db1. 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/QZK6Q2422915.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32f0fea62bf6820d2e872437e7bb185615be16f9327599a081d6c86db7415e99. Chain 2 (Bitcoin): anchored in block 958115 (2026-07-15T10:06:47Z), 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/QZK6H2429286.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde3477f3e291496c8093218ca29cf5bb9163086cdd62cfe8e0a0755873d80ff6. 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/QZK6H2429287.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ec9aa98caa4d050db5ccc1f7b73831d535b0408d59441b26641ebb087538375. 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/QZK6H2429288.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa140b4ab9de4c58a7a6c8564fbfb68da16fa4badcf69a399f0e499f3d0df6c2e. Chain 2 (Bitcoin): anchored in block 958696 (2026-07-19T07:45:31Z), 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/QZK6H2429289.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62643d86b17d08f512a57b4f7c2da7a8ee1a28567909ee55a984c7ff90613982. 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/QZK6H2429290.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x956c869d7b8331bd8f9db95225df39c78fc80e5cc45aa3996e836ab18af04774. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T20:38:50Z), 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/QZK6H2429291.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5988fb2ad9fdb5e5572df5fa17f501f93bb8ae4a9fca4d638e60ba0cf06a81cb. Chain 2 (Bitcoin): anchored in block 958775 (2026-07-19T22:41:53Z), 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/QZK6H2429294.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x221b4c792803b3394029a1ad2d36536ce7cdc244edb5cdd402315a24786cd547. 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/QZK6H2429295.
i had a dream about you so i slept a little longer
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbee301582391d6e7cd821f40d0351b1a8ee0a79db18d089c2fa239b0f82639de. 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/QZK6H2429296.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaad3dabecbc139cccce691f7fac344de8d2cd39c4829f1f40401dc18b3375196. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T05:04:21Z), 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/QZNWU2425774.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed55b2561e46998fc3e3cd919ed81ae2264e368dadc71b20c13222b0266b5904. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNWU2425775.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49b54b987c202020eefa14e7a825aec3d6317d6b680a8d85ec99509c9f8063a1. 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/QZNWU2425776.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f70fa7cec4f8ff84663e723f3ce25ccbdd63fc42595f0043bb1c997fb6cdd27. 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/QZNWU2425778.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea644dc54f70f3cae227bd841f89bddd3fbc10657ace1387bb55dd4f2958406f. 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/QZNWU2425779.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43bb40281ac3e09f0dcd6fe17ebd2652d5c04c27e1a8cafb02659196497b1268. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T08:41:42Z), 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/QZWFT2478114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe58563bbebbcf8f0afc077f99a525663eff7adcc9b9489b681a69600f27aa8b7. 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/QZZ7L2460787.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x734fcfd24f51ca1441532f1a73c58c67486b3fb57bc9f69c96fb1c36b29830ec. Chain 2 (Bitcoin): anchored in block 957735 (2026-07-12T17:47:43Z), 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/QT3F42422709.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b7e42f4ecadf103d92ec95d60cc4357dd1c4e6b0ffd29e605456fa96c6979a6. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-16T00:09:12Z), 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/QT3F42422710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5e066423c378f335f6068974b7056cdd4a549672167a8593cefdac0b59ecf9a. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T20:03:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QT3F42422711.
all the sadness i had while i missed you
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x992d3243e9e38d382160503ee3798eb82bcb69624e9965da0f5f2d2cc81d8146. 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/QZES62564692.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ba307ac92818d497d81e2cfbe30c1b0c8aeb664feb49e88ca06ba7eb002ca8b. Chain 2 (Bitcoin): anchored in block 957735 (2026-07-12T17:47:43Z), 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/QZHN92564943.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa64fa2f67ad33e2ef27e8893f7f40b8b9a57483e715942e724137369fab4fc2e. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), 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/QZHN92564944.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a5dd5454132960c1681394c196340b5ce8479ba408effb0fa9376f4f82247ff. Chain 2 (Bitcoin): anchored in block 957741 (2026-07-12T18:30:59Z), 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/QZHN92564945.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b11f2bfdc1f48c4e9eef1b85921689099af2094d7e1fedf3caef150fad94b5f. 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/QZTAW2576577.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51ca2ef2d5d65fc93a81db46ff20632bc8980dd5891537ec8f480891c1ebb8cf. Chain 2 (Bitcoin): anchored in block 958594 (2026-07-18T18:05:01Z), 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/QZTAW2576578.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8013fc9c286b778326b478932507117510d89d08521c7834613f60d7babae531. Chain 2 (Bitcoin): anchored in block 958802 (2026-07-20T01:04:02Z), 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/QZTAW2576579.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf333848961c531a47345096e7b729467093eec41be3e620073686d72581a946b. Chain 2 (Bitcoin): anchored in block 959137 (2026-07-22T16:56:04Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTAW2576580.