D, or d, is the fourth letter of the Latin alphabet, used in the modern English alphabet, the alphabets of other western European languages and others worldwide. Its name in English is dee (pronounced
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 0x7f1b55310e1ceab0fd87ea1fbee833adb1879af77a038abc63125e5a2d5de6bb. Chain 2 (Bitcoin): anchored in block 953778 (2026-06-15T11:57:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a4428560-9db7-4dc6-9624-5a0dab66dd1e.json and https://artists.proofprofile.net/proofs/artist/a4428560-9db7-4dc6-9624-5a0dab66dd1e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Yami yori kurai doukoku no A cappella to bara yori akai jounetsu no aria
Yamiyori kurai doukoku no A cappella to bara yori akai jounetsu no aria
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 0x88468cae2dbdedc9ff9a009d12b17020aa8502a5b52b2f25565dea55c72fc10b. 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/TCJPK2086668.
闇より暗い慟哭のアカペラと薔薇より赤い情熱のアリア
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88468cae2dbdedc9ff9a009d12b17020aa8502a5b52b2f25565dea55c72fc10b. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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/TCJPK2086668.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf440a867115435f2fedd77fb384700c0827f3aeb29f94993e376853915947e7. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/TCJPJ1922669.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe66c09425afc24160a0ebb75aab26b515ee3bd11347d0c979b75464f7b0b5cd5. Chain 2 (Bitcoin): anchored in block 958596 (2026-07-18T18:42:38Z), 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/TCJPK2085666.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe66c09425afc24160a0ebb75aab26b515ee3bd11347d0c979b75464f7b0b5cd5. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/TCJPK2085666.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6fd7e2f42d2a92b5099e1f8d1d98d98c0ac669c8eadc5e4e5fb3e2d0e2d4e54. Chain 2 (Bitcoin): anchored in block 958907 (2026-07-20T16:17:58Z), 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/TCJPK2085630.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6fd7e2f42d2a92b5099e1f8d1d98d98c0ac669c8eadc5e4e5fb3e2d0e2d4e54. Chain 2 (Bitcoin): anchored in block 959054 (2026-07-21T20:19:31Z), 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/TCJPK2085630.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29ec2a2096eb5874d3535054fca1e6ab79f23deb6634289ab43af5189823da88. 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/TCJPZ2498781.