Jota may refer to: __NOTOC__ Iota (Ι, ι), the name of the 9th letter in the Greek alphabet (figuratively) Something very small, based on the fact that the letter iota is the smallest character in th
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 0xd659027297e80b4d0b4929abdceed078c94709a230b90ecfd2130792befe93a2. 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/e30f6fed-473b-4d4b-b247-0c64cd4a1694.json and https://artists.proofprofile.net/proofs/artist/e30f6fed-473b-4d4b-b247-0c64cd4a1694.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 0x89021df01c2eb3d279166cff39ba962cb0449865083596df8776d6e087251cba. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/BCGSB2100001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f90c9463ce9ee015b03a7efaa82ee642f4ad3a8057539b18a3f20ddbdee5f2f. 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/QZWV32444408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ba2622ebcf18560b94a9929ab924d321bec40e39bf8fa9a3e204e68375d2667. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/QZWDE2407507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbc26662a690efe03f2490db7c541fabd1a4eab8b9111efeecfb2f9f04e7bc17. 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/BCGSB2300023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x761b31882704d72a921dbbff8143443b298bc1de2892190b0e0deb3d8fb0c8da. 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/QZZ8B2364104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc286f07d5f5d12e2c7ea5cdfc4de67294e7425c6346fbf98c2edb5bab1afd49f. Chain 2 (Bitcoin): anchored in block 960183 (2026-07-30T01:10:20Z), 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/QZNJY2425344.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd430bff920eef1e891000f100fadc6459d045f3dfe6fafc7a0ca934a1db014e. 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/QZNJY2425345.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89f92ae854418d73931c40dc1eaff3937d8464cfd37776093683fc863a2b0c98. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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/QZNJY2425347.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0afad6507cf232d603099eed42979f3443b2bc30a75c2a8e33fdc595af9aaea. 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/BKEZ92400009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0afad6507cf232d603099eed42979f3443b2bc30a75c2a8e33fdc595af9aaea. 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/BKEZ92400009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ce87adb55b4b26c6a4ac4ce27644b02740dfe221e6741bcf483bbf53faa503f. 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/BCGSB2400002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x665ab2a753d4c0a017409672ac9d6c8bb95fdc3b7064c5ed4650a00eaaf38e94. 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/BXLMW2400015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x223b114b02731288d29c8eaaafba2dd3ad32f392fcf216afa49390d66a9bf179. 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/BXLMW2400019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43f84bf4d7d74f3f8a911eb411192bd81a7d1a3e425770a1b024d37621447a4c. 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/BXLMW2400020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10e3ab49eca037515ddcaf9b5f142f11e8a748d7ca00ada1e1e1a7956136f512. Chain 2 (Bitcoin): anchored in block 960161 (2026-07-29T22:51:26Z), 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/QZW9K2305017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43f84bf4d7d74f3f8a911eb411192bd81a7d1a3e425770a1b024d37621447a4c. 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/BXLMW2400020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0380c02483c283cb2b49c822d064ac14659dbb78cab53c5c4ccb0703ed69058a. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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/BCE7P2401558.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3873c19cf3f5e3cf921c7f51b8d3340eda9d9043d6e731d69731fc593980666. 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/BKDP52500016.