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 0xc38ca2b13938f012c14ce77388e4b446fb4182f9c4483e41873ffa39d3afb2af. 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/33cd5669-1885-4fe7-9bb4-a3588abc9fea.json and https://artists.proofprofile.net/proofs/artist/33cd5669-1885-4fe7-9bb4-a3588abc9fea.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 0x1a08cb45ba8e43adab83d38e3e763b682e91ecb4cc595aad5826744b66e96172. 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/FR96X2019122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d2994fa857ec7986e77edc186c1bcb066e04a88b4d7ccd98d91457f7cec495b. 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/FR96X2019126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a724f499199ae0367569a89f760153f8709d0e11cdf59bb6fc67ccc8dfff3af. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/FR96X2019128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14dfb75f28c6f641bffe1d94ec885d9ae17b6d90534191b1590adac8354a3f51. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/FR96X2019129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f29f43635bea555bd4eb17107a50041dc13440d5d2d221ad6315a3a9cf994c4. 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/FR96X2019130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec2426bdb4cb9acdc26c43e68ab9a842c246981d29ba1f941ea5ce330549e1ca. 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/FR96X2019131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x352d4d64d0a207256c84671390d155696452d7bb8354efe651a5087a2fe05a14. Chain 2 (Bitcoin): anchored in block 960258 (2026-07-30T12:45:34Z), 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/FR96X2019123.
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 0x7a3ae8d45312b61b17b8ee5ddf329a1e611d9d56ec6c72922594d837fbb73837. Chain 2 (Bitcoin): anchored in block 960250 (2026-07-30T11:13:28Z), 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/FR96X2019124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92d517c0831a1479606ac8698e870023b6f7a73d4df2a53049db849f090d6a7b. Chain 2 (Bitcoin): anchored in block 960266 (2026-07-30T14:44:50Z), 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/FR96X2019125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ff19177c8ba7c376fe3b3b0404c211b811037464c0ac83bfa539c42e07ccbd6. Chain 2 (Bitcoin): anchored in block 960218 (2026-07-30T06:57:05Z), 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/FR96X2019127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2946e0ddcb5a3bb0bce3000a618fd0ac2391dc02881a5ef230f2faba96386da5. 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/FR96X2039481.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6811e565e9d7ca0c4ce1fa347bf7227f2bd10d45c7d212ed064228d468bddfd2. 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/FR96X2039482.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60a131fb1939880c1cddc0baa0cd8438eaf7c130371d02b5e39fbcd86b043c0f. 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/FR96X2039484.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc63cada55ade27877134eea6313875f3f64c994ca180e59952f0a83407b49c49. 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/FR96X2039487.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8975d64417324b54c4be9d152b6fbd86021696630f519336d1c3a6e25d766f22. 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/FR96X2039488.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64bab5c091facfb26a9fffcc5f794f628471b43c40814bf154f2fa8a15e3c903. 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/FR96X2039489.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf8897f08a264adba1826128adb0f7637af56971e2dcd903c88688d402f940da. 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/FR96X2039492.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bd1af584c94f0ac8ebcd5f77b7ef2c877fde448aeb352538b998ce825ac1c39. 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/FR96X2039493.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8dc3489e17b169dfc9703857c4771fd6877c480724bbbf1c5a4383e2bdcee9b9. Chain 2 (Bitcoin): anchored in block 959137 (2026-07-22T14:03:35Z), 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/FR96X2039485.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8ad2c913509376a2fb212e1780355c551c589edc15a600822744908204aa667. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/FR96X2039480.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ec392538b27301e1c8ded0ad65b34eb9d2f4607e4c694ccab5b38b40234c173. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/FR96X2039483.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08b7444639e7802f4f52b0fcab8a24b7b2f94283dfe475b2aa1e72f07e4a09a1. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/FR96X2039486.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x694d14d8fd51fb291191b3161a18089e65a6b7d47397275f57321b85d1f6c5ca. Chain 2 (Bitcoin): anchored in block 960209 (2026-07-30T05:15:54Z), 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/FR96X2039490.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2ed39ae1e27f1b82c4f05721337bb019130a65cb6ce97c0b1078cb6e041e0e4. Chain 2 (Bitcoin): anchored in block 960513 (2026-08-01T04:52:22Z), 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/FR96X2039491.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x996607ee9df71aea1f33ba3b477276c21981041922004661597c2ebcfc4d9512. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/FR96X2024852.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11452744a88da8eaccd565be55133bad301acaaf7f25f1e1d765f691cac4f795. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/FR96X2024853.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x593d85059de504292d3c2d91c8015ca63a1f5ded1e606d949762ab33c337fa3f. 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/FR96X2024854.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd7d9f987d71a2071c2ab49a21c095aebeb4140e4992e93a51a0f77e5c44f676. 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/FR96X2024855.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e4fc21b413161a4f9d0aaba00e3986560e343cc067c7c9bb8f2b428793cdbb6. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/FR96X2024857.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3a20367041a3c813479a55697456da862f4a1c38de285ec5b9391f567487643. 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/FR96X2024858.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe72abb651bc999020c467a25d3639dfc6a41dd1386a1a1287edb3fe0bca26bfd. 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/FR96X2024859.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ba202d0dbe53e9b9b279027a7ef0043044ad2bf6f19345b51ffbec6c41c7a73. 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/FR96X2024860.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7f59eba1056c64644408daebcbe4239000c8cde6f8fe6b887f04f41c0faa5eb. 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/FR96X2024861.
תיפוף להשם יתברך - ביצוע איציק נחשון ורשי בר רשי
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9de231b9ceba6025f9af9cfb2f3787d23d7f457d5c8254d3b42cd600c55dc35e. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/FR96X2024862.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fb8ef204d3d3e26366d050fa00a5529c1106df5924814dc6d86515ebb74f9a9. 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/FR96X2024863.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb15723ee5a1912ce93b080afaae820b23abe297940468037643ba114d47248e9. Chain 2 (Bitcoin): anchored in block 960163 (2026-07-29T23:20:38Z), 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/FR96X2024856.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa638c2adba0a602757d40dafe5326f077c223ab2c7620042ffab150e0df60b33. 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/IL7192200367.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30e1cdd7949f1d6b4a282746f7599d6fb291fdf4406a1bf523c2f7ae8b27a58b. 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/FR59R1903773.