Shlomo Katz () is a contemporary religious Jewish singer in Israel. Biography Shlomo Katz was born in New Jersey, the son of Cantor Avsholom Katz.Video interview with Shlomo & Eitan Katz, Yoni Kamp
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 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 0x8f799fb7b03fae0df7cf34ec1f7d1fa18ca01a51532f75958d38ee18476b1950. 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/fee0e6ab-7cc1-4f39-9923-14c0dd65cbc0.json and https://artists.proofprofile.net/proofs/artist/fee0e6ab-7cc1-4f39-9923-14c0dd65cbc0.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 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 0xcf5c17db70425492746066675e45df03ff92339d1382cab3cc0845b63a4290bc. 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/USHM91166655.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5b32b72f7c7e74a5928aa81ea8406802ce8aca25bc87eb17bd35283bbeefcd0. Chain 2 (Bitcoin): anchored in block 959031 (2026-07-21T16:15:11Z), 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/USHM91486158.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21a115b051588bf752b9220ad5ac1948f1020e0b0709f4a9943d23216a91de99. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-19T21:20:45Z), 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/USHM91486162.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4be23c5b3fa15fcfff58b8cb75cfb84182f469808d7c5fa5bd9d5fae101873ed. 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/USHM91486164.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e127a515e009d414e4fb12d95f526d9175fb0078ec4be3a032277145bdf9f22. 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/USHM91486167.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x711efde982c8cee82a6ba028b58d6f16bd027678572709008bb9eefb1e6febd3. 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/USCGH1635890.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd615beec1f5d7b25837a5d14693d3b791b5adfdaa84d1c4405d99f8f69c5d91b. Chain 2 (Bitcoin): anchored in block 958825 (2026-07-20T04:55:29Z), 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/QZNWT2255695.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44e6172f5ef6a9fee7fc8cbde1493f04461adc0d1611d71e824beabe442326f9. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/QZNWT2255697.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd8fcdd948f1fd0d1656cb34a1d0ab29d1faefae5b3375793357e0afaae6f967. 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/QT3EZ2543310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b5541b18919e67bc0d50093a0c937950a8a652515a2bfab27217b4860b71587. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/QT3EZ2543312.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9865a36fb5724317ae3264600f382c3d446426e48bd6535aa6366e7cc55fc27f. Chain 2 (Bitcoin): anchored in block 958827 (2026-07-20T05:07:11Z), 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/QT3EZ2543313.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5005c21176265ef64dd885ea47e5ba58c34ccfd8fa7297a4d56f883393714fa. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T09:11:53Z), 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/QT3EZ2543314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c9a883a264de4ebd180c7fe7ddf5b7222c3861840bfabb90c9a1c6f519bb17c. Chain 2 (Bitcoin): anchored in block 958827 (2026-07-20T05:07:11Z), 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/QT3EZ2543315.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83671eba0752bbe729610e4de5bf92c359f8791fb98f6880d2d282592f87413f. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T14:57:46Z), 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/QZZ7S2597608.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdecbfe03b296c6e4e2a00254267ce6facd03ccf6b2ef3cf9f4ec67fb948fa503. 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/QT3EZ2543316.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3c50d93a06c9925f470931f23db2e6007d56a235406a4fdce6134731d7277d0. Chain 2 (Bitcoin): anchored in block 958834 (2026-07-20T05:55:47Z), 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/QT3EZ2543317.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ecd5d3bcaa494ce36c788730d4954f210d9a83f64f6fc6523854d5b02dbb6b7. 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/USCGJ2004313.
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 0x3eeb643dc0aa086ea1b2f284ea34f4f05f6988ba963914f8df745bf078f82601. 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/USDHM1905555.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9760bbda8ba2e8acbe5051b8c09a90e0bcbabb316481e2c108c621916806d442. 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/USDHM1905561.
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 0x4f606568d34e6abe5302402639006a512f94b8b89739ca2e035605ee35a9f4e3. 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/USHM91397848.