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 0x811e24b30e3f2cf7c7a8bb12f5d0942a64779dcdc993b9a878f39941fbf8c5e9. 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/38b83c95-2aeb-43c4-a79a-7c3054eee64a.json and https://artists.proofprofile.net/proofs/artist/38b83c95-2aeb-43c4-a79a-7c3054eee64a.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 0xf92f67b7d40a05465cb5f8cf4a19d038f97790936e878e2aab1e68d9a1ce0137. 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/FR10S1919742.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fa038d7ea01852459a84e1ec4522bb212cf56e5a4ba0f69a915c5ec9d610c10. Chain 2 (Bitcoin): anchored in block 957959 (2026-07-14T05:54:20Z), 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/FR10S1919743.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3989b23924e80d7a0f3783c74d1f809f7ccc989bf867714a7b59e2b738908e68. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/FR10S1919745.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c806ec02404eaf1c4922f190652c98b7cb02cfba2008eba20be11b88e22e623. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/FR96X1973325.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ce2bdffb0e3dde02502b277ff4b5c88a971b37e776440c04053b118a20498ec. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/FR96X1973326.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d8c60483b1b722e7646181c5f856f6cf3d3cefd79606e549c31ab7fa5bf06ca. 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/FR96X1973327.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fab220a29ccb132cc12ffd602f374e94230e7941a413557387983a9195a6961. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/FR96X1973330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9684682db5cb2381df0f968ee7995a68a2aa26dd87e383f64c1c5bbd2430960. 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/FR96X1973331.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00b7f9e4f03f232f613866a27b82ee16cc10675759f8c5a44f368cbd540780aa. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T14:57:46Z), 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/FRX282091388.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc0779e137b9e6082e33b6f5ec8251d9c61cefccb5b72669b4df0d24325f100e. Chain 2 (Bitcoin): anchored in block 958800 (2026-07-20T00:52:19Z), 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/FR26V2029942.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6dba433ec3bde60b15fd46da33659841dbe5509a2c862ec8bc0986aa6edf650. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/DGA052019864.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fe527ef4d5edf6215bd589e49d6ccbaf38f67db70a93114e34c76257dc77749. Chain 2 (Bitcoin): anchored in block 959155 (2026-07-22T16:43:41Z), 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/DGA052019868.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30cfcc0392deefa562dc7d2b74be019fcf1bfcbc78bc2216ed712495542c61b4. 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/DGA052019869.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66486b8cd1ce447c43f49dbd0d5bef9776e7a8cfbe4729a86c4a06eca62176fe. 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/DGA062026651.
Куда уходит детство (из сериала «Пищеблок»)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60152139fbda34f449c96822c710225f441b97ba895c8e9ccc62883b0f1cfa59. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/FRS182105882.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde81afe4e14fa00aa2d2b9ce2cbe6060e5ae9748bd6383565cfdef7f826f28bf. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/QZL5N2332365.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2194a2025d425f008cbbc6d63e542051db55bd23b4e7fbe3126556292f9dafa. 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/RUB422303135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a6b1f6fb9b6ff06a282dff926ab745a08d359026de4d6e91e32187900bb27bb. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/RUA582100143.