Marina Vladimirovna Devyatova (, born 13 December 1983) is a Russian singer and interpreter of Russian traditional music. She was a finalist of the third edition of Narodni Artist (People's Artist), t
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f9de6f5b4365b5d3676f835e0076b399baa5930fcdb3d8c69c2ab8f0a143aff. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fa2a74c3-dc78-4b88-9237-d96c5bc2abfd.json and https://artists.proofprofile.net/proofs/artist/fa2a74c3-dc78-4b88-9237-d96c5bc2abfd.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb6584b8759860445cb55aac14c9d3c2d5e11ffe6bb3959e091ec0f3aa445b35. Chain 2 (Bitcoin): anchored in block 957874 (2026-07-13T15:43:57Z), 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/RUB731422232.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7da896ed74a6fa081fde2e4be36767334e0b32cbee21a0f06ffdc9039fdbce1e. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/RUB731301791.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d68fbf38fbb9e997ce71dda7f9ba7d621752f2ae98985490bdcb9adec4881a2. Chain 2 (Bitcoin): anchored in block 957899 (2026-07-13T19:36:39Z), 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/RUB731301793.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd19b9a63502a18f669511c17b08edc431cc780991fc7e2ac88887156de50019. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T02:46:47Z), 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/RUB731301798.
В день рождения с любовью... (Юбилейный концерт)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5afe800363eb901d966babdccd043ca0bbc4e14e429806c8ac3a8be66876a7a3. Chain 2 (Bitcoin): anchored in block 958631 (2026-07-19T00:50:09Z), 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/RUB731433611.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5afe800363eb901d966babdccd043ca0bbc4e14e429806c8ac3a8be66876a7a3. 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/RUB731433611.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c4f584d0ff49ba2424ff5eb0798f230ec1752d5c1cfa09180be257e29e5b6f0. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T06:54:23Z), 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/RUB731508690.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x770f9b538ba6cc65741a353e0b48618dba2952906080611f751fef1e53236db8. 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/RUB731301637.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6535070b6e5f3f97ad2131194a6cf97eeaea0a281598515d18beb2a8edf556c3. 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/RUB731301639.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33703ae105a2c957eb076a839621fdabe435c416cc0a0a00f9417522f3c352a9. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/RUB731530661.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd64f46128da06768e715af39aeffd1751227ddbf3d5a6dddd10ad8af821d486c. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/RUB731548242.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48c4fe52cb7a7def0acc52bcbda791b6dee310e0a7916255df4444f261e7c0a1. 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/RUB731528357.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02726edae872ec0763cf07756fb05ab8929eccc80f85923508ed36dec62100e2. Chain 2 (Bitcoin): anchored in block 958585 (2026-07-18T17:05:16Z), 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/RUB731548274.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x582fe2319329885f948ac0f7565fa6ff0b182d26d05139af552256d4eb29ebbf. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/RUB731513756.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdb9bb9f39a7d3f633750ac26b33c7b9f8e4ad2d5f90b3b5fc172df54ffac31e. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T02:36:11Z), 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/RUB731511743.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ef7cbd496adecc26dbd9514e3be404205e698f4b44c1a7903db12ffe0865f53. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/RUB732074674.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05182dbd436e04b8eac8052d96dc3133e69c09584f7834f8b4a028d12093ea8f. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/RUB732076385.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6bdcfda7739781af7174e30b284dca6fa4b402fed68f617cca4b6044cd8eb73. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/RUB732083352.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd37bb8368f3b316c67ceca771b335b1bb823782ddc61df1630107ba2ccc71948. Chain 2 (Bitcoin): anchored in block 958680 (2026-07-19T06:04:14Z), 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/RUB732089241.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa1761880ee2657ff7db971c34ee7ae1ff04c6c8d9d6922f953d7a6d5d12513c. Chain 2 (Bitcoin): anchored in block 958935 (2026-07-20T22:08:19Z), 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/RUAH62505329.