CT or ct may refer to: In arts and media c't (Computer Technik), a German computer magazine Carrick Times, Northern Irish newspaper Freelancer Agent Connecticut (C.T.), a fictional 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 0x0229d2e4954fa9753ad86d9a97427d0e75c156a54b76fb788779301eb008adc0. 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/df228eff-9ebc-4e9f-bf44-aea9b488f090.json and https://artists.proofprofile.net/proofs/artist/df228eff-9ebc-4e9f-bf44-aea9b488f090.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Anh Thua Người Ta Nhiều Lắm (Remix) [Version 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 0x4fa7e0ef48603817fbf3a5afdb298b95131c91d5f45723c2a3e080a2aafa0452. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/VNA1M2406590.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6072741c3eb7d0c67c19d9f73169c36a53b263241d174caf2db481449466b3e. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/VNA1M2406638.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x528de40b2cb44c8bffbc22ec6bc4f1a88729f371a9e4be75a38c496913dd2bee. Chain 2 (Bitcoin): anchored in block 958538 (2026-07-18T10:30:13Z), 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/VNA1M2406641.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabde68daf67b35250b501c100fded3bb4e1b51de66f2c7bea4c3d2af2cceab29. Chain 2 (Bitcoin): anchored in block 958876 (2026-07-20T12:15:48Z), 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/VNA1M2406774.
Tuyển Tập Nhạc Trẻ Hay Nhất (Rumba) [Vol.1]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88bc2544d90935a2218ada360ecca060368277cf0be6ac18a4649c1605080be5. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/VNA1M2287999.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x699810e018528f31af6d07925c528f3fd717f3af19864fd74e2e1dfc93217968. Chain 2 (Bitcoin): anchored in block 960240 (2026-07-30T09:57:33Z), 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/VNA1M2288001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b7f52f74c3dc12d3c2048011651335cde56a77fc40ac30b9c9e2a318efa0fae. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/VNA1M2288003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f608d67866b7267701f1f6b7b0e8cfd5c5dd7f32738cd8eed8741cd9bdb1f6e. 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/VNA1M2401230.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62d86cb1f4fc1048c7c8e9a166b13114c1d4ce5f1ade216d5e4b002ba718ee57. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/VNA1M2282316.