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 0xaa7360a90c3e0b85eb0914108298b4f29f5e88161ceb25d6194c307ca99b405c. Chain 2 (Bitcoin): anchored in block 954631 (2026-06-21T02:46:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/cf1884b0-4034-45ab-9ed9-e49936654901.json and https://artists.proofprofile.net/proofs/artist/cf1884b0-4034-45ab-9ed9-e49936654901.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Я не дура (я красотка из твери - moscow dance version)
Я не дура (я красотка из твери - dance version)
Я не дура (я красотка из твери - club version)
Шарик у энджел (shy like an angel) [russian remix]
Летим в космические дали (шуточная песня)
Зайку бросила хозяйка (deep house version)
Зайку бросила хозяйка (disco dance version)
Зайку бросила хозяйка (guitar solo version)
Танцующее привидение (extended dance version)
Танцующее привидение (break dance version)
Мы в этом мире так играем (rock version)
Мы в этом мире так играем (dance version)
Мы в этом мире так играем (полная версия)
До свидания, старый город (alternative remix)
Расскажи снегурочка... (ну, погоди! ремикс)
Ёлочка, ёлка - лесной аромат (новогодняя сказка ремикс)
Вдохновение - релакс (инструментальный альбом)
Моя любовь (полынь-трава) [italo disco instrumental]
Мы в этом мире так играем (rock r&b version)
Do You Really Need Me (Russian Dance Remix)
Джимми джимми.. парень из бомбея (80h version)
Сигма бой (russian sigma boy dance remix)
I'm Flying in a Hot Air Balloon (Euro Dance Version)
I'm Flying in a Hot Air Balloon (Ambient Version)
Матушка Земля (Танцевальная кавер версия)
I'm Flying in a Hot Air Balloon (Extended Version)
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 0xc7918bbeaaf90b5f2e4efc0d5c53feed23c145dea6f7ead04b95d3c2687048a7. Chain 2 (Bitcoin): anchored in block 958384 (2026-07-17T08:27:02Z), 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/TCAJT2535418.
Don't be afraid (посвящение юрию шатунову)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x013d8d1789997a1e5c6968282cbc2444cb563352ccaab2a2c908e8b3d3113b3d. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/TCAJY2512450.
Колокола а ты опять сегодня не пришла...
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6ca7eedbaed153ba31a3348ab3e896259a49595b87659b89a66c7429781d257. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/TCAJZ2594801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x564d1c24ff561ba71f461eb5cf562da6c804691190b02c4ec4d3c0b6f114ccb3. Chain 2 (Bitcoin): anchored in block 959118 (2026-07-22T10:01:58Z), 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/QT65W2573789.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe7ece307202fbbf895b07001c11ba6e993699a238cfa8da8e6c76a70ea09f37. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QT65X2578755.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32fa8a259044c5d9930d71cb7dc69afbee93a77428d9e3fc4158bb97aeb7c844. Chain 2 (Bitcoin): anchored in block 958384 (2026-07-17T08:27:02Z), 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/QT65Z2513235.