Ciano may refer to: Ciano (surname), a surname of Italian origin Ciano (Crocetta del Montello), a hamlet (frazione) of Crocetta del Montello, Veneto Ciano d'Enza, a hamlet (frazione) of Canossa, E
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 0x30bb6e0e4a1cfbfba20982acabd70b2ce7a04e26dc48cce22607db95db0d34fa. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/eb5c5b08-4ad4-42b4-a421-7491fc4e6adc.json and https://artists.proofprofile.net/proofs/artist/eb5c5b08-4ad4-42b4-a421-7491fc4e6adc.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Exercícios de Manutenção do Fluxo Criativo, Vol. 1
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 0x274c1e3a3a5f18b7731be24304c639e7f5bb280235cc35bba5fbf562b849c68c. Chain 2 (Bitcoin): anchored in block 958959 (2026-07-21T03:51:22Z), 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/CALVP1947478.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x798c37aaadd92bd3fe6c64f84c790939287b8865ea63ba509aae79eabc6447a3. 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/QZHNA2185100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x593df53dbd0024d051ecf3e2b4fcf87a267b03ef19e4684ff2c3f7ad66c68b22. 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/QZW9K2436366.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x973e9f6a24052207eb124d3a267367c89ad272f522a8815c2e3b1eef5d803138. 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/QZW9K2436376.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5262358fad29c0090f94d209617a882771a48fa66f37edbccf046db28bfe57c6. 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/BC8PH2400002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69c695d857e9082d631d2075d44209bfb7dcdc45821cb75591116eb9265d68ba. 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/BXIKW2500005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27458ae5d94ea7ed8ee9be805870972e3bf1b9b6277d1988339fd73a231a330f. 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/QZHZ41929745.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68ba6fa16a40891b1dfd40660e1b08b1627dff5ea45c6dae395953c390612814. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T08:41:42Z), 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/QZW9L2381105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb08a2e641ac326cb54b418efe212d223f043ac12a5b6f30dca266f9f8929aaa5. 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/QZW9L2381106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdca5e8f31094f5ab2654e580f4b5ae9047cd3993a7e5f37fe83aa628cef5cb84. 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/QZW9L2381107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb473ce1cd351596a7a3d7ba216978ed1d7c300927e13c87f6c5b6f86bf4df831. 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/QZW9L2381108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a8a4441613120106dc200b9652874710a1fd0dc414b66eb53ec351230dab30c. 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/QZW9L2381109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f5b5e2c2fc7b5342f7be43f685009522c08224d377b34a54edf188f79b7f867. Chain 2 (Bitcoin): anchored in block 960302 (2026-07-30T20:09:33Z), 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/QZW9L2381110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcda6c3e1e8edca3f5ec10c66af04454f538c0d9e6d43c2453b1289432982fc44. 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/QZW9L2381111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d442abe5f0d644b37879ec608a78681ebed26afe6c9968027b7f5431aa37c4c. 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/QZW9L2381112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x368cf38add6053bb78abd5712de167b64861e9fc3b4414176e784c740b11ad09. 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/QZW9L2381113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35b0e6e70e16959d3ff7c3005c334c9836b96171832eff907ab9a19ffce0e5c8. Chain 2 (Bitcoin): anchored in block 960164 (2026-07-29T23:23:05Z), 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/QZW9L2381114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54844c30613ee36a899ae99018a883e6ae42ea6638980054fe0ddadbe97920fe. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/QZNJV2477747.