Tuti may refer to: Places Tuti, Estonia, a village Tuti, Sistan and Baluchestan, Iran Tuti, South Khorasan, Iran, a village Tuti District, Peru Tuti Island, Sudan People Tuti Indra Malaon (1939
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 0x289f9d9044b868b1db2f17c245292f7e32ec59c1894c5adb6bdcddac3c53c4e3. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/60206a9e-f457-4f32-a36e-4ccbed38e9f3.json and https://artists.proofprofile.net/proofs/artist/60206a9e-f457-4f32-a36e-4ccbed38e9f3.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 0xd2f32f2be5d82e72d59ab8291f9e31f5e542fa8f4b2a4c38c4be6b0a9ef09ded. Chain 2 (Bitcoin): anchored in block 960370 (2026-07-31T08:38:45Z), 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/QZNWW2391011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc4f7073bf6821611aab23df8d978f436f883c0de8275e1f3caa2c96fa7374e6. 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/IL1042303134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f831cd54699e7415d3e022f7ec93f01a34508d4673fda9a06c520a71d866307. 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/IL6192305669.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cf87fe6457ad3d78b7701a9121a8451f1fca473a4ee49064311a9aea04b8bb6. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/QZES62380239.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4b7cd9f8fcfb3ba7c5e54d1bf09ff5b2e35ce5d2c51cbe08538a28dabad8725. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/QZHN32325736.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a224425a710258b81ce8d8fc998f5b6f4ba0907e3fdae65fb2db6550d52f105. Chain 2 (Bitcoin): anchored in block 960429 (2026-07-31T16:07:24Z), 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/QZHN32325737.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2c7a933a6cc5f902fee20169442706df4b7a60cb11966bf2988fffcfa1cffaa. Chain 2 (Bitcoin): anchored in block 960481 (2026-07-31T23:51:35Z), 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/QZES92349085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8b381cb51c47f31e337b2ceef10ef07217f65e79f1189c290429dd3b2a2392b. Chain 2 (Bitcoin): anchored in block 960506 (2026-08-01T03:50:58Z), 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/QZHN32325738.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x647e0d6f01b82f1ec165a77d76e54c13b82a298f258f2221d1943c9ef4375ec7. 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/QZHN32325739.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc791b37b85347c0a084a05e0e999950df9c1eec900988609d6c24eff75dc963e. Chain 2 (Bitcoin): anchored in block 960198 (2026-07-30T02:21:55Z), 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/QZHN32325740.