Tota may refer to: People Tota (bishop), the Bishop of Selsey (in what is now England) in 786 Tota Roy Chowdhury, an Indian Bengali male actor Tota Singh, Indian politician Vincenzo Tota, Italian
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 0x960bedcf173d763cf9628c187f0a518cbca7e953d78db6cf94beacc55037138b. 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/67dd8854-de77-42c4-a6bb-5332e54665a1.json and https://artists.proofprofile.net/proofs/artist/67dd8854-de77-42c4-a6bb-5332e54665a1.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 0x8a344c3e56935db685524b3462910802aac3344b563dc4fc260e78a75716182c. Chain 2 (Bitcoin): anchored in block 958876 (2026-07-20T14:57:27Z), 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/JPD862201361.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe5ed61cbe8b566ef77124c50416974b7cc7d4f973c595ba8989f852c62210b8. 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/JPD862201364.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe5ed61cbe8b566ef77124c50416974b7cc7d4f973c595ba8989f852c62210b8. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/JPD862201364.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0157ae7fdf5589ccee270ffb839feb0a794ff28f18798654ca5be7d642546c79. Chain 2 (Bitcoin): anchored in block 957852 (2026-07-13T11:25:45Z), 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/JPD862201367.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd230d44118234bd8fd60a610714e83bb710cc28e7034cdb0457bbe5c1e9a09b. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T05:04:37Z), 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/JPD862301382.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8127debbf1351a6c928d4619ced4db11ed9a6965b34091541fa6e4e2563709e. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/JPD862201378.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8f4846c88116d2fe609cf0e59bd9ae5955b28fe1ac4490611e44b2abb1df883. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/JPD862301385.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40ad0f74573c5e57e67ce9cc95b8b0654476e0eed3a154853e1235014eb12734. Chain 2 (Bitcoin): anchored in block 958363 (2026-07-17T04:34:46Z), 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/JPD862301380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0157ae7fdf5589ccee270ffb839feb0a794ff28f18798654ca5be7d642546c79. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T20:41:44Z), 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/JPD862201367.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x925ea9b1a244b7c02c6f4f271110e4827d9f20017134cf948285e34273232005. Chain 2 (Bitcoin): anchored in block 958363 (2026-07-17T04:34:46Z), 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/JPD862301383.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78b2a8226da341acc1a9d408306b77e736ffc0c71d5836fe9a9cc138f2800187. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/JPD862201377.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8127debbf1351a6c928d4619ced4db11ed9a6965b34091541fa6e4e2563709e. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/JPD862201378.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05d15290ce66733d7c469b18ab957002b628d4615bd5a0e662c53de76b5caaab. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/JPD862301384.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fff673dfdd58f724b9a5a8f58d9fa1a0897d591048d15f79f56e803637718e8. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/JPPC02311965.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ed2e9b63292aaa41ff7a6893d322e31f7caeed6b47a968ff0d115ba7ae00426. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/JPPC02312241.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x985093829967d0d156f3aa89e22f069238201681c4d794d080ccc2fb9ee126af. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/JPPC02410339.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6156c193d3be7bd5f48f07c205eee65aec816a949945ef1792f93aacf81ddec. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/JPPC02410955.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d8276a2390f649b82bf27542e868a7c80257f86a8cb69f8b5b5fec6a439fde8. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/JPPC02411363.