Alexander Nikolayevich Serov (; born 24 March 1951) is a Russian singer. Career He was born in Ukraine. He is a Russian popular singer who is best known for early success in the Russian language with
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 0x417d16e8577e21e6b6459a958fb1cc568987c7eb83bd667a5fde02761298f8e6. 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/3cbb545b-c8d2-47df-a78e-a265de0b8203.json and https://artists.proofprofile.net/proofs/artist/3cbb545b-c8d2-47df-a78e-a265de0b8203.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 0x021594b353751cdb970391fe672161963ee900dd10fe0efb2980d8c1920f5c03. Chain 2 (Bitcoin): anchored in block 957620 (2026-07-11T22:32:56Z), 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/FR6V81508234.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x077bbda2c4d741a32fb34cc207b28913caf1ed888b6694df00e3ac348b637de0. 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/FR6V81508235.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f3bc437c930a221085aa56fb5dd97ae1aa92ded3093ab25a9e0070421f229e7. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/FR6V81508236.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc1c4b823c7411b29e1ba0312f0f26548155696e60124b40d02309f0494b8825. Chain 2 (Bitcoin): anchored in block 956396 (2026-07-02T21:01:51Z), 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/FR6V81508242.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ecffbcd0b99b32b92e36b453930f21e2e5973bf6b56a7b33ddacb2327c524bc. Chain 2 (Bitcoin): anchored in block 958346 (2026-07-17T01:47:42Z), 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/FR6V81508247.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3d2384952fd347a6833d77d1d81f994090f4234131f5f2effd1e28bf3cd9d7e. 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/RUB731301582.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9e69cb8dd96a32d162b12004183cb25e48a67be8a61ec3e4823bc9b2c08d9d4. Chain 2 (Bitcoin): anchored in block 958980 (2026-07-21T07:04:12Z), 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/FR6V81576283.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa37b46b79a72183833d46e1b2c1fa07b9e7b72b5bc223e9033ffdb954c9ddf66. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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/FR6V81576259.
Grand Collection: Александр Серов (Лучшее для лучших)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57c90a23472180f2bb51730d5680758bba28179de3bae95198778005f467256e. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/RUB731301589.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc38b80484b7e3bcb3ee287510afae546a68d8d50ffc95eafdbf8a95dfce629cf. Chain 2 (Bitcoin): anchored in block 957611 (2026-07-11T21:33:50Z), 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/RUB731301594.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96b83b8999eec8c4a6ca4120eb959d289884caf6c0d08a63f9e0faa97513b05b. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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/RUB731301580.
Рыцарские песни о легендарной любви, Часть 2
Рыцарские песни о легендарной любви, Часть 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20afa7900fd6433e65daf621c245059f67971e49b7d5dc95de53a1516faede76. Chain 2 (Bitcoin): anchored in block 960513 (2026-08-01T04:52:22Z), 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/FRX872381929.