Olesya (Lesya) Vladimirovna Yaroslavskaya (; born 20 March 1981) is a Russian pop singer, lead singer of Viktor Drobysh's girls band Тootsie (2004–2012), Экс-«Тутси» Леся Ярославская сняла дебютный кл
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 0xb9e295628db674b7481d95919362cdaae10e7e1b4aa13caa487fa72b2a459965. Chain 2 (Bitcoin): anchored in block 954784 (2026-06-22T02:53:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ff73d2bb-4eb5-4fdb-a94e-b029043fe406.json and https://artists.proofprofile.net/proofs/artist/ff73d2bb-4eb5-4fdb-a94e-b029043fe406.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 0xc27581158e16dcb7592d861024617193fe6aeb973e9766c121d42ab61b80dfe3. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/RUB731522975.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab7cb678f712e64adf680b96f00ac419907c815af418fcf0b516f00a28b94073. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/RUB732013870.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa903a89321c79dd0ec6ba80e71c39554a5fe0ad1bb988b39a7d932544f18ea63. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/RUB731597610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x239859fcfb6bce85b40a418625b1549cc18a7c3a44866662068549cd4448c34c. 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/RUB732009392.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x039615437167fe22b8f6ba96c7f5d1b83b5fd9087f2999a7d300dad0eed21c60. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/RUB731590908.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x843a8518eef891b96cba0d2d6bfb84d66463f939ec14a08d930b6f09f96ba0a5. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-21T21:29:35Z), 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/RUB731548658.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cdcaa47ad756f0b32e7b1d98cacaf2ed1f13e21f2d93d863e6258d5eb82d786. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/RUB732003000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf18e78f83363e33277f54b2417f7e0f773719e2238d5cc7577b53f4802ce179c. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/RUB732002850.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcf11ac88577f5211fca58d413a80c604685224dc392379d0bbc716beb84e687. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/RUB732013868.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70ef36933d6f4f0201b96fedf6186a1ce20b98d7b8881f0989369a361cbb20a2. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/RUB731404264.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02068d729bc668bdf39992e6bc67a0287cf1cc8abcc8dc8a393b22eea56f0bc9. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/RUB731570644.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bb1eb81265165fba1a791f7b80f3214f218cd8a739e8e8f69893f4c6a19b1bd. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/RUB731564717.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe034cc97eb74cb65284d7027583928958fd791ff9ae3d8c2c506c4c134dde6d3. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/RUB732040094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x517918a0d8480c43c43c6dcb59d70034222c63c76a785d5001407c588614e7ed. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/RUB732032841.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab7cb678f712e64adf680b96f00ac419907c815af418fcf0b516f00a28b94073. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/RUB732013870.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf1068ac148fa69ea01d17d6ee26387293d799d96a809f60a5e9cd8fbd96dba9. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/RUB732036694.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x039615437167fe22b8f6ba96c7f5d1b83b5fd9087f2999a7d300dad0eed21c60. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/RUB731590908.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01f46c2acd9c157ba68a31c008e5c4dba6c314fa9f3fba2894820f65bd2d1d78. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/RUB732014762.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x239859fcfb6bce85b40a418625b1549cc18a7c3a44866662068549cd4448c34c. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/RUB732009392.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc59223ef9b62e79806f9d5cbdec8f0a87bb26426c9a4a327152bfecc55fa77af. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/QMPU51250316.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04a2056741eaf5ffffc21b4621a9092562c59c8f3f581a7abf0393548b916ada. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/QMPU51250319.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cefd1e89726c1a5fab4be339c969a29a644b40d13a9b5878b5a5e4106491c73. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/QMPU51250320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf8617517fa117d5c1363849a6c24a23bf3a892fe75be0fd92de65b725c1b6be. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/QMPU51250326.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b1a3d0abe4dd870a332fbf7de4e3e71442b26203bbe098a4f3f2622c2c4cfc8. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QMPU51250321.
С Новым годом, мама! С Новым годом, папа!
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11d6e617925dddf9f732001c9e39b5d578daf9771584f6c0bca74c3be8893247. 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/QMPU51250322.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbac920c5afc3fa2a6a4be3c093204694f002f400bf151fb48633b1cc9633a29. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/RUAGT2451639.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46a57bb7fb46c44e327af77e1e256813607f667131082faa76c8738eff71b828. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/RUB421701755.