Valentina may refer to: People Valentina (given name), a female given name (includes a list of people with the name) Valentina (wrestler), stage name of Elizabeth Miklosi (born 1983), an American
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 0xa149e7c3d85c7b0c75262346fc7882a5661b88e19a50a7228dca72c43ed301d2. 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/19811b6c-8fca-495b-8359-175430a752fa.json and https://artists.proofprofile.net/proofs/artist/19811b6c-8fca-495b-8359-175430a752fa.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 0x34ee15667ade22273f09d1a0c75764d9c91e2f629fe0b4b4046e5b97e1c00955. 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/FR8FB2120090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24656c730ef785b4e77e51e7df4b1e3967343a3dbb0cd210334e79a2538781c3. 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/FR8FB2008400.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x172817d191f5405d839a4a38dceaff193127af163e2f2958dcf3d05c9b2034b1. 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/FR8FB2109200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49c98a66281195b88b8ff6273bbe739f933a80a46dfc3c730bb614600b111f4e. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T03:03:40Z), 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/FR8FB2120060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x087bda5c1be414f47c567182cf652a34f94aa7b93a297244a38aa4361994ae56. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T15:22:58Z), 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/FR8FB2120020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad6d0567f2858284065c7f33b7bcdc260cab3ed8d3a872e30d2b691137b8c8c2. Chain 2 (Bitcoin): anchored in block 958756 (2026-07-19T16:12:29Z), 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/FR8FB2120050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f0b5572abe67c44f07f3bfdd94c140ba23eaca7c9bf61718a80cd94707ca93f. 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/FR8FB2120030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9972a5a387ca8550185221e5651d9cab95b00855584c6ba68e5e965988b735f6. Chain 2 (Bitcoin): anchored in block 959061 (2026-07-21T21:34:21Z), 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/FR8FB2120000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f617f4fd795b55809e881ca14b7e41f00e347f9931a41a63da19f63543bbb5e. Chain 2 (Bitcoin): anchored in block 959084 (2026-07-22T00:50:00Z), 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/FR8FB2120040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5d8c0750ef251550631df9b9f7c0b3a56934b22cf2a881c44f97703bf997783. Chain 2 (Bitcoin): anchored in block 958140 (2026-07-15T10:05:23Z), 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/FR8FB2127400.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e1a32854427bbe7f6f3f153f7921e7ede73a3d77b9abc4892ee67b6cedb669e. 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/FR8FB2127080.
Last Christmas (feat. Viki Gabor & Petar Anicic)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccf8bc900dc0f7ad7869dcc988897c6fa2c1f77b76aa1ebf83411b298da19901. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), 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/FR9W12347944.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe3e1f3bbb3374d6d4c6355e9851679614365b84bc4ea5921b83e248ff7e4f92. 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/FR9W12347942.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff136bc12d44b09442ccd7bbf8c6a1fda63b4ee044db7b654954b6a281dab08c. Chain 2 (Bitcoin): anchored in block 958917 (2026-07-20T17:53:56Z), 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/FR9W12347943.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccf8bc900dc0f7ad7869dcc988897c6fa2c1f77b76aa1ebf83411b298da19901. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/FR9W12347944.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb33be75e7c1895244ed0b94fb520a33719fd4a6dbe2c762dd4cc87938fdb7207. Chain 2 (Bitcoin): anchored in block 958415 (2026-07-17T12:50:13Z), 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/FR9W12347945.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2545405f7dacd3d7c170df25021fe9de1f94fa5820edb2369eb655845a974c4. 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/FR9W12347946.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd10b6a92ee49b6fd7f4527e005f81b79b6c18c822c609f12d79d6a442a078fdf. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T15:36:35Z), 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/FR9W12347948.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a8fa0f6e8b998401629c233049b66dbbd7f2b5ba86bfaa40c44a8d3bd5b4347. Chain 2 (Bitcoin): anchored in block 959058 (2026-07-21T21:09:36Z), 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/FR9W12347949.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9e51bd4cfc6fd4cb1535d2562bc343245b87e583b70967fb92ccfab529e65e0. 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/FR9W12347950.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ecca31ef4a497f2528a280e1cc4844b6b5ee6d81f0ec765ef0ad44a7d94a11d. Chain 2 (Bitcoin): anchored in block 958830 (2026-07-20T05:30:12Z), 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/FR9W12347951.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32516c993827cf84af7fc93af351a4b234fe5e8c3353b67f5bdd7dd4a678d68e. Chain 2 (Bitcoin): anchored in block 958600 (2026-07-18T19:24:05Z), 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/FR1A92402582.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8262f53b4cb8744dd8bfa15b8abf55f14f606e75e9f159b61f2e1d93261c697c. Chain 2 (Bitcoin): anchored in block 959105 (2026-07-22T06:33:30Z), 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/FR1A92405981.
J'imagine - Junior Eurovision 2020 / France
Junior Eurovision Song Contest Poland 2020
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24656c730ef785b4e77e51e7df4b1e3967343a3dbb0cd210334e79a2538781c3. 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/FR8FB2008400.