Roshi may refer to: Rōshi, a Japanese honorific title Food Roshi in Dhivehi (Maldivian language), refers to the flatbread roti or chapati People Kyozan Joshu Sasaki, also known as Joshu Sasaki Rosh
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 0xd6985d1bedbf3280b6df0e1538e4e2beb43851f77cc01573b9f408bac8fb8570. 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/87e1d58d-20b1-4459-8763-baa0e5d0b5b7.json and https://artists.proofprofile.net/proofs/artist/87e1d58d-20b1-4459-8763-baa0e5d0b5b7.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 0x9b60719dc183b080dc0121bfbd2c92d25761054b89d9d40565eaf8b1a67657c6. 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/FRUM72300418.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x921818e0e9009d086bd33588431c8e510e3fce5848926dd59e6b312508d0315f. 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/FRUM72300415.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x991b29510e502ff3de128ea55a83bf9bccbc71bcd8a9876c8ae67ed78ddc91b8. 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/FRUM72300416.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe38abcc8ffb35f925012094cd42af8c3f0efe90f36d98edd4bb06d333bfc7c0b. 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/FRUM72300381.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26c3c9e92f1fb86cb4effaf337ee8c3dc6279f99a776d9275415224e38755442. 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/FRUM72300417.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b60719dc183b080dc0121bfbd2c92d25761054b89d9d40565eaf8b1a67657c6. 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/FRUM72300418.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a05275088f588fe465272f67d2553fb8deee6bb1df5321c66c2a3b4a2a164bd. 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/FRUM72300419.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x822c6eee80dbc0e47afbc15a1afc6346ba25d7915cc4dc7c18677205701699a6. 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/FRUM72300243.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb0338a2e8e4b7125ae0eab4f9173e5950ee8c9fd695ba4b9f89aaf65e5dc0f1. 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/FRUM72101892.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1bc473ce3b8392883ac71e69f8318ef4e19cc64659dc598e06f700bf76243cb. 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/FRUM72101971.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x291482d4f9b5424d61abbfd108b174f84cad758bce9bce7a677361a15eec68e0. 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/FRUM72101974.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ae8a21de72cc165855bc27639b8e3b1fd49e7ab01dc3567e28ba9b882b262ef. 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/FRUM72101978.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67bb2f6c662b417b80ebae8b35fe54b17d073ac30e2c86b6a5970cc0cee9936e. 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/FR9W12024722.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d11e9a1c9e429054e2aa027001912029ae7836e1ac045802ab65872d47263eb. 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/FR9W12031224.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea78bb54023c1d4dcaac7411e7d29f9a0a0086fb1765e19f1581a023c88f0379. 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/FR9W12031225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x352f63a53e884c4d96ad9d0a01170c95b552b52fe89bbc138dfc319fc29f0ebb. 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/FR9W12024723.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff3b0b0f1565cbb11650b657e10b8fe8acb89ef4f7540a14d0f8d35f1bbb70ae. 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/FR9W12031227.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1fc9565dd06f6ec6c4ce368eb85ed1fd1aba51d00fe1bfc23dccf790637d640. 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/FR9W12031228.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2018799f1758e757d35808360a54879b34626ffe43273e73c1d9b8255478acb0. 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/FR9W12024724.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56a6eedcd8a6b16f6196f1c2f585effec16fff32daf1746034f57f357adadf2a. 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/FR9W12031229.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a1108ef09a7f89ffd3a5146dd1b4b6b3953cc692f6e935ae9058d8a1593e7c9. 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/FR9W12031232.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x750d7d3769fe79a0960641b3afcf99ca1de913ad1746b0143fc6310e1e647f96. 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/FR9W12013595.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82e14f8353c46223c33a2a0908cf7997a2cabd6086cf9f2ec32806d496d4a475. 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/FR9W12013478.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd85be9b6839b2b5c30bfbaffeeb9cb98cb586d7e364d59e2768d19500d0149e. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/FR9W12013481.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f23b0540e26c1ffc47f7e7da8c7910569f076d5a41aa7e978ced563445222b8. 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/FR9W12013482.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x950d33b37876c0be02fc673b25095154ad281d27e2de3e3dd4bbd4d58cdc1d6a. 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/FR9W12013483.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19e66d90a8a14e5858bc36dbc583218ec3043ea970fbba28e4e30181ed2e2c01. 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/FR9W12002047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b0cd8ced936581211754913686cfedbc1b32f6edf6d7d2d873a3e2b257f0634. 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/FR1A92305438.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11c47a30d034701f9e959b9b9f3562dc45116f880b0effcbd52ce53f6c8a0b42. 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/FRUM72301640.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe38abcc8ffb35f925012094cd42af8c3f0efe90f36d98edd4bb06d333bfc7c0b. 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/FRUM72300381.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x822c6eee80dbc0e47afbc15a1afc6346ba25d7915cc4dc7c18677205701699a6. 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/FRUM72300243.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21ad32209dc09c81eb5ba461e7465ed6c98c7c6e34470afdeab7c7d99163341d. 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/FR10S2397771.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcacbb5afcee332366e44cfb137d3040ab2799875e125434c1e66b1e8a4126a9d. 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/FR9W12234680.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea90c214b4b1fd12ed5e455d923f808dd834b59f74f79f702eb3dd70118f1810. 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/FRD8V2100070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x900c964639d3e10bcd72ba93b2e5d81fb48f88864fa307668c40863f17577a37. 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/FR9W12107350.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5e03655c04d0b2ad1eaa78e44fd8c6bbc5c616cedd206da397fbb8b1c93c126. 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/FRUM72400536.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8787153071ea5f205df458e534bf851a4f63ff1057f23de3cff8381c381b55e. 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/FRUM72400100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc070a017bbabaf6fcccb2830bc93db78541fcadb62fddc9948db7366dbdf083f. 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/FRUM72400061.