Yulia Stanislavovna Savicheva (; born 14 February 1987) is a Russian singer. She represented Russia at the 2004 Eurovision Song Contest, which was held in Istanbul, Turkey. Biography Savicheva was bo
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 0xff9db8f45a81f0c534fb5f0661859f4d0e532f6240e02c65224766a46b8cafc7. 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/82b1fb55-f08b-4acf-afaf-5464d1795052.json and https://artists.proofprofile.net/proofs/artist/82b1fb55-f08b-4acf-afaf-5464d1795052.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 0xff822e4f7ef3ff0abddeeadc5f1cf2443a588a93131dc84cfa63f99fa1f93094. 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/QMPU51271024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8e5d1f0150cb32a33d3116c1efcf9df8fbb050ceb5c5e2932a1d97c289f78f2. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QMPU51271025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9b64c21c81c99c6e455ccef8a2af4a52d24d0c255d3e179399e6db900688f6e. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QMPU51246131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c25beef5d6d5fc97fb913c8949e99966b2b4c947d993e8205653d5c2abeb18f. 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/QMPU51271028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1a85acb8a2535c9bbb54ace987b245a50fc9187e8a346dfd4093c9a0cf3db1f. 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/QMPU51213182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1cb1afd96165f6e1e91b9499f6ca6ad0908697786e7c958dccbfa56d3f04f37. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/QMPU51213183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bd8d0ebaa21ea40cbbcf7ccb61b9076d467aa48c746a5a05ce8ac8881dfb441. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QMPU51213185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14528775e9fe6c5c782aed85c7ab722e52c8fda14018d80034a6788c6595bc62. 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/QMPU51507623.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27391b23437874e1167f34a52bc4f294891f40c17c3f428c8b95e1539cc02b59. Chain 2 (Bitcoin): anchored in block 958376 (2026-07-17T06:41:00Z), 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/QMPU51507617.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf09352ee979c19d8511a55e563c3bcd0df03367784d9d737b840bca457495492. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/QMPU51507615.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad31822112395d03a30cde7b604bf9b240579112a5e870a6166b5e776c6eaefc. Chain 2 (Bitcoin): anchored in block 958991 (2026-07-21T10:04:40Z), 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/QMPU51507612.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb98186240be4821506e23f5c30aa5fa1fe5ad187dcc53d6dfb44023872b5e120. Chain 2 (Bitcoin): anchored in block 956482 (2026-07-03T10:33:57Z), 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/QMPU51251069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeaf0025c1e6805310c7e1570482daf788175395b7d9d6c2eead03452a7a65432. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QMPU51284865.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d0c031dfc7c53fe13bb29b1171e54dbe973f2ae885570d33499bba23914cad5. 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/QMPU51284866.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacf1fd442c93a08bbe8af0497516df6c33d40dea86b72a9afdb3bc390d0ebc7e. Chain 2 (Bitcoin): anchored in block 957884 (2026-07-13T16:55:06Z), 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/QMPU51285092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70d0e76381901d16f38020dfd0712e85e9f4f91f3f57fb841e1d2ce80d3e47b0. 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/QMPU51737783.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3d2117b2d839103a0aa65ba535d850e77946a5f93b53310e66b1222021431eb. Chain 2 (Bitcoin): anchored in block 958627 (2026-07-18T23:33:54Z), 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/RUA1D1715444.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10a8c24373cf2817eaa1b14599406132d497bf3817cb76a4091cfb8de831ff07. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T17:39:44Z), 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/RUA1D1823061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b4fab146cbc695be73ef3c400d9dd8e95c03ae4a744cfad2da2dfb9329d0f29. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/RUB422000067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0189457f9bb49a31b13697dd7becc3706a2194052211d4281d8c659b1f577d9. Chain 2 (Bitcoin): anchored in block 959063 (2026-07-21T21:45:32Z), 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/RUB422000070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe897fb41202c36b833362d4b55f251ac08c3a9b6bad1f3c511bec6ff85689c4d. 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/RUB421901805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ff178c0171748adb55e34f1b978c4b1a5a8b005c959ebab13a4171b00084c3d. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/RUB422000074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ce5b76375bc37ded885f0fa318c43484144bd800a12aaff42f12c498fd3322f. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/RUB422002212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f2f1dbf63341e03badaf21f8396e017d673f96cb871b8c7c75ab5cac425b465. Chain 2 (Bitcoin): anchored in block 958422 (2026-07-17T13:35:31Z), 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/RUA012200251.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x498989ec5a5ca1a34d1fdaee5dd1dadcf1f60a2c4952c94a1686c90d30aa3b36. Chain 2 (Bitcoin): anchored in block 958422 (2026-07-17T13:35:31Z), 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/RUA1D2266882.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa483b04eda82237af724359253b12c438cefcef82cda1712664803685989a604. Chain 2 (Bitcoin): anchored in block 958720 (2026-07-19T10:53:46Z), 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/RUA1D2294809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3044aa9e637248c78a4f0ace9a55fc829204de8addf17f2412ffdc77e9f908ea. 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/RUA1D2437424.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0f8a0c610b2295bf7e818221302d1fa24d0e714e702fdbe9ac5df02a30e544d. Chain 2 (Bitcoin): anchored in block 958263 (2026-07-16T08:19:47Z), 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/RUA1D2437427.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe19cdcee0b7a3e94fa71ff1e6034c4a630ce6bbe8ac21eebce224e73d8a032ed. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/RUA1D2511475.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2f1fec22b7e908640b9b06c5d95d58c159d0360610cd43c20e7dc9767e5d4b3. 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/RUA1D2560899.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4adc8a8f79b286b06222a9badbd7aede1740ba90dd254571e0b687fb433b011. 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/RUA1D2560900.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16241b1dcf24e3a4b143bdada1a67fd710bcd1f0ba8048cdce68dc131ee61c54. 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/RUA1D2560901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd837acf05365549d410ac90d010488f8d83845f222772452d9c6f672d1583ad. 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/RUA1D2560902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb202f9c97d15be2601426f2bacadf37325771c2eedf9e4916b58018090d91be1. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/RUA1D2560903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d62dc5133989c006d7964c0f3679c774432e5b46340bee6fec067845c4d8807. 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/RUA1D2560904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x062c51aee358f0e061d53b8e436e9d63c083f59c444a6dd1b274f2a781898a6f. 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/RUA1D2560905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa822a9132b48690ec24f816f149f2d47ac86df2e8701938aad326e4034945452. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/RUA1D2560907.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc5a72c87a8a6dbc5e3885b88f7839b3aa2b407875da2a9e0472e41fb7b8cb3c. 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/RUA1D2560908.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5b88995bac4e144c513425de5619ac069f3d22bc189de2aa69544bc6f1a7fcb. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/RUA1D2560909.