Chii may refer to: Chii Tomiya (born 1991), Japanese professional wrestler Takeo Chii (born 1942–2012), Japanese actor Chi (Chobits), a fictional character in the manga series Chobits See also C
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 0xd428ec2f4aeacb16304ccdc72d8f84bf7a33e441aadbf0f5bb9146b0ab573765. 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/95d3ee1f-75be-40f7-be7d-88bc33bcc654.json and https://artists.proofprofile.net/proofs/artist/95d3ee1f-75be-40f7-be7d-88bc33bcc654.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 0x137d0d62caa93599a3c48c16e5dc0640e066c02f4eb4d83d36aba688fc728e91. 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/QZWFN2335647.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaaece3d2ddc64b23b64be47bdb6013e1f47ae5bcbca5d72557d864748e535f32. Chain 2 (Bitcoin): anchored in block 957745 (2026-07-12T19:20:20Z), 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/QZLL92283313.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22977ae1fdf82c36cff8a10be075754f6c479d73bbd894d5d2264119a2e64627. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/QZMEV2203370.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0acf15b7f4e5cd261b8f1885614bdbd8ecd0552660c862e086a2d9d38b4dbe8b. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QZNMV2245227.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bc91ea8e5a64dc39898d796f1180af1bb0c83b62aaa18decb0cf8edcd84cd1c. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/QZNMY2238350.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x309197e9fd71ce7b81e2cd8605288c034496a231dfdcee144bb4d5062936dc25. 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/QZNMZ2290243.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x836b2fcf818845ffe8a888c5353538274067c1669c565a611fe4adda35d25e76. 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/QZNMV2372482.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01b9db0365cf19d4390bd91e130ef202ca5bf38c56104ab3b0907d7cfe07a024. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), 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/QZNMV2372483.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82f3ace9c8f809dd866e02c4d014e27273bcc7d140cfadfaa9df8f9be0f0d8fe. Chain 2 (Bitcoin): anchored in block 958069 (2026-07-14T21:37:55Z), 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/QZNMV2372484.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x386c47d61c0862ddd94d65d7fd8d5ae91ee82ca47eadb47a1cccfda4f1603ec8. Chain 2 (Bitcoin): anchored in block 958067 (2026-07-14T21:26:15Z), 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/QZNMV2372487.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99c92c5167576120b223044b7d4b3801a8bee590086e709e3d6eb777e1ecf7f1. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/QZNMV2372488.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ce06e935896634409fec9d1cc3a73bac8efa714f40faae4232a09da36b2b278. Chain 2 (Bitcoin): anchored in block 958067 (2026-07-14T21:26:15Z), 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/QZNMV2372489.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdd8115c9b4374b5cd9dad67f3e3200f1d9624eeae87ea1136509f2639f7b2a4. Chain 2 (Bitcoin): anchored in block 958600 (2026-07-18T19:24:05Z), 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/QZNMV2372490.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3318b814706c1c30cdba4f58145cc578516073b037248ca9df795b21cbbc46bd. Chain 2 (Bitcoin): anchored in block 959094 (2026-07-22T03:33:16Z), 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/QZNMW2357054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6db71e274b71ddcd535346ff8b3af1ea7290a98db42bcc51e99de4810883617b. Chain 2 (Bitcoin): anchored in block 959088 (2026-07-22T02:14:33Z), 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/QZNMZ2323145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2ec0bc173635004186cd78dba85ff0d5fd3bf2cfcc9f5eac97afaa7191ee9d2. Chain 2 (Bitcoin): anchored in block 958069 (2026-07-14T21:37:55Z), 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/QZNN22360222.