Nasrin Kadri or Nasreen Qadri (; ; born 2 September 1986) is an Israeli singer. She mostly performs Hebrew songs, with a focus on Mizrahi music. However, she also performs Arabic songs, notably includ
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 0x2214b801ee318e2221c1bd29e22edd2dcb7b3ceade341edac4f6f648e2e8f768. 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/695c449d-2c83-4cbb-b064-f0ca79833f69.json and https://artists.proofprofile.net/proofs/artist/695c449d-2c83-4cbb-b064-f0ca79833f69.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 0xa772b45cdcfe8b5512a0c11fdcca3a764fae901695b482c93cdb4013a2396e21. 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/FRX281916616.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a74c073b63a39574c2bf4cc4641e13a350b15daf71d213db3206c5db814d543. 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/FRX281916623.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c261bb231069cdafa899ac162d23a2a71f896741b913308d5998106e088f6f2. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRX281916626.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49c4aa964d6f747a6438ef1496723e7f22932daf221837448750eaeed03f3eea. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T11:31:26Z), 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/IL4721000678.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2872297ac827c84b6b9234111a784c26fc766dfc3aaf6a0fbe41b8f5d7a05dc2. Chain 2 (Bitcoin): anchored in block 958975 (2026-07-21T08:53:58Z), 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/IL4721001115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3423326f2d0c78def5d31f2437d0fef05d51b1bc97d19e711b7b59f45d5e6cbd. Chain 2 (Bitcoin): anchored in block 958116 (2026-07-15T10:21:13Z), 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/FR96X1677577.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd132f867c3cacb70d05d87bf38321e3f9f46fbeb47e95ede77f4ef2b18a37db. 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/FR96X1677578.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc882ec4e0cc8c60765ab3b8f67d2530fd1cad2c6081f021fd9ba1175ac7a5f9a. 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/FR96X1702621.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72f23ec51bdadcb12c16d5dd97941ee45b0181c6e61ea14b926ea762e56fa6ad. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/FR59R1892936.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3938bc1fbfcec62efbaac5a8a79a6b2f458bab22555369d7cb375a1204585e3. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/FR59R1892925.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46c7b44c265681f56f8996d19aa1df9985068b0624a90d4f10c49e4b708932b2. 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/FR59R1892931.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8e765843fb26ff87574af7a7e0d0c51fc50b3fdd8ce49c42f8112b5c263ac77. Chain 2 (Bitcoin): anchored in block 958568 (2026-07-18T15:23:47Z), 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/FR59R1892938.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01153f40252aaeda95564a21cd9c33bf23be83bf2e38ee1bffc145ce6de33716. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-16T00:16:14Z), 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/FR59R1901033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5568186d8c0a506692385909587d66a0037d8ddcc652a2c2f8c4d7b235cd9a8a. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T03:03:40Z), 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/FRX201999422.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x432f41df05257262e14e20b648831b37d6bf629cab40ece14bc6dd8f21b7f06d. 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/IL4432001619.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa83c671f3e6f91dd858cd9deeb5e003f91b3bb13cd556dd77e19b428d5d66800. 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/IL4432100163.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ea5328b7931fb42d37f920ea6dfe455fcaa5123cf490d2784dc5ccf3dd25c55. Chain 2 (Bitcoin): anchored in block 958907 (2026-07-20T18:26:41Z), 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/IL4432100208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3c59f7db7ae95842086f7f7823ddddab881dcbb4d5ee8c6d7b014c3ec17f045. Chain 2 (Bitcoin): anchored in block 958798 (2026-07-20T02:46:45Z), 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/IL4432100226.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3e1f08b64e5b6956cd842b05b564617e39ea9ac14484622902b315d5d3227bb. Chain 2 (Bitcoin): anchored in block 956620 (2026-07-04T07:11:13Z), 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/IL7532212733.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88a4f33b016dfde6fffa34dd081732c00e56c647c22fc00b2c0c5e57865dd479. Chain 2 (Bitcoin): anchored in block 958639 (2026-07-19T01:18:30Z), 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/IL7532212734.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfa303bd8aa43c14357299f675153b92a0d05a872790ce24d4ce9d9fc0cf17d8. Chain 2 (Bitcoin): anchored in block 956620 (2026-07-04T07:11:13Z), 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/IL7532212890.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44e529af546c6e3f17b22f9ea3225d456ff560931d87fda303bfef42bbfae800. 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/IL7532212961.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f39b24602024ea7bd70ba818a9b73bcacbfd31d3b59bcc43043cf9c0263901d. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T12:21:26Z), 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/IL7532313314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20935915c8eaf5f2549fa2ae24bc1b0da1988f4df882d72cada38f207b317371. 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/IL7532313485.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf27ba1ad0a0125e7570b8081643daa7e278b23508355505d44f1eacc34005b63. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/IL7532313486.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40245026c637b462f125378b8cdf29cb7a66b003160034a5efdd21515882121c. 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/IL7532313487.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc2c3ed5995f41d4072d753b4911b472ce1b8f8ac339a7ee8c5027c4b3034107. Chain 2 (Bitcoin): anchored in block 958907 (2026-07-20T19:11:32Z), 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/IL7532313489.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x895c09eb029805c0698c4943ce6ecccf183f85b905c75a533f8646aa4e266664. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T03:15:39Z), 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/IL7532313490.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x375194c9bbbfa1e1b5d5973aba6c0ad78ade1e618a61690b46439ebd2378a9fe. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/IL7532313491.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5fb2ddf90e93ec4fac83a481d1a6ad44ec40ec8c86ee843b6c053213c289545. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/IL7532313494.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a066fb1945ee74704a2c600b18b43c0000136c05c55c26391347d05c346a38c. 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/IL7532413223.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc822b183dd2952780f028ce3b3af5ecdf8f8d593ff35dced14fec4d861260152. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/IL7532413224.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca66c79dffd84314ec2df21f1ab4cd994f5a880b0d397d0d68387885d36cb7a3. 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/IL7532413396.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0daaa06f2f728a003b5c377dbf0722c0ad8f8c7a1eeb3caca99fa7527f2ffaa. Chain 2 (Bitcoin): anchored in block 957788 (2026-07-13T02:37:37Z), 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/IL7532514056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca04b768dbd39fc68ff86ba60e20ac0561b53380f07af26b830617931d8ec240. 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/IL4291002270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b819e5272d947f6ee780f9762bf923d30eb478aa3b1c3ceb0fdf0eab5fc4b5f. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/FR96X2098750.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x526cf5189533184b60271bbc8b0463e957acc97fdc05f5c71dd53fcf793cde33. 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/IL1012100440.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35dacc082e6cda444dd03f76a40b3dce3b058c69397421bbbad06960971ba2e0. Chain 2 (Bitcoin): anchored in block 958042 (2026-07-14T18:24:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/IL1012100872.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f93255df34a8cfa5c67b077e7d55bc8c4946eb4af31d96bfc91fa21bf2d0770. 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/IL6462000192.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd1a9004580da47251fa6a235be45d3b4ffd5fc23df81c3bd3357480ee71b5b0. 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/IL1012100384.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x526cf5189533184b60271bbc8b0463e957acc97fdc05f5c71dd53fcf793cde33. 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/IL1012100440.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd1a9004580da47251fa6a235be45d3b4ffd5fc23df81c3bd3357480ee71b5b0. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/IL1012100384.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa933b5731159e108c0c0b7e2861f196a50d43e06f1f6dbca7684992886104e76. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T15:23:36Z), 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/IL1042004820.
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 0x2330fc0e77d2dbf505d91fdcbf9587faa5fb3f94ec0dd050922726baf450fc17. Chain 2 (Bitcoin): anchored in block 959105 (2026-07-22T06:33:30Z), 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/IL5821501648.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcaa05308080d54d3a30b505acc9c6f9237fea5fc17e5192051b731d87e8c9a39. Chain 2 (Bitcoin): anchored in block 960404 (2026-07-31T13:06:57Z), 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/IL1021810256.