Eva Carina Kvistborg Jaarnek (26 December 196217 January 2016) was a Swedish singer. During her career she performed in a number of dansbands, and she participated in Melodifestivalen twice. Career D
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 0x9af619c6b050445db2fa22323f472923f4ef819f5f5a12b70dccbccdbffa9abb. Chain 2 (Bitcoin): anchored in block 953713 (2026-06-15T00:33:41Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/85c4857a-06eb-468f-ba47-8afaf279aa7f.json and https://artists.proofprofile.net/proofs/artist/85c4857a-06eb-468f-ba47-8afaf279aa7f.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 0xcfc574db0d8b2459e0c2d3be9c838dff7e3aa5308bd4564ebc33474c5681a995. Chain 2 (Bitcoin): anchored in block 960170 (2026-07-29T23:52:38Z), 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/SEPQA1600125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fd87bfa05ebc896ec5fed7951babf3ad77ea6d04d0a8c7bcae7e80d6e4dac4e. 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/SEPQA1600137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43743f10a33bd8c08aa0e9d61af634d8e6bb2d11e4351061cf3be8d979433ff2. Chain 2 (Bitcoin): anchored in block 960121 (2026-07-29T15:22:21Z), 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/SEPQA1600138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c91720672a78437efae72949bc8e202b8ca4544478fa60a2108b9ae72391dd8. 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/SEPQA1600139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45c4f1bececb8232a8269bbc18f9185ded2bc5f99c4d6a26def2dff1e8051247. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/SEPQA1600140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37cc3aca7f0bbc891109157aab6bef82dfbbdc9bd695ac5fc743db633dd74ff7. 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/SEPQM0614647.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf76a0c1c2eeb835505d41d59b6957af6b022ddebe669dce6562581ceaa534fac. 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/SEPQA1600141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb545ea439e97861894dbd62b84dcd26a557a85d5c59df922b99b634554e4640b. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/SEPQA1600142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85a73263dd62d15c12efffd429bca15bb9f47cb5d0ed9a335b24c11d1dc442ac. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/SEPQA1600143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6efa1d1067e9ec3aa7d018972e0eeede1641cc0e4826b9d4a1cee30d7d38407c. 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/SEPQA1600144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c238f66f63933ad321330c0cf9406d0f23f0afb42272d06c94b2ed952555c31. 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/SEPQA1600145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ec7ce8641603de91b0f85345aa800b694e77eb25e5f088c7cdadbb23d5e83d1. 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/SEPQA1600146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32e32a88c00384dc564fbc1760e6868f6c718627183643c8debf7c5095b25c78. 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/SEPQA1600147.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa35a9f5772db0e4e80c24002bbfb1332913e82a9c737b81599a6fc57732141cb. Chain 2 (Bitcoin): anchored in block 957048 (2026-07-07T14:18:56Z), 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/SEPQM0900214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54c8ac648662f0ab3973148172f71d7cbf67bd374278b61c4a1ede70269e6b75. 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/SEPQM0614241.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91791fd556c7363f1583b0444a132cae89b368cfaad9e7fa1ac288458877f3f2. Chain 2 (Bitcoin): anchored in block 960218 (2026-07-30T06:57:05Z), 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/SEPQA1600148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cfe4d951eadb7a199d0d43da3d135cdbcd04be4b5be6208d06bc1c97b69e0c1. 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/SEPQA1600109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe422e330cd7849b109cf64ed56bb1175190c35ec31f16c5b30309c809eb35643. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/SEPQA1600110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e1134ea0ebc3382ad641cdec2d5e75a4630e3582db07daec0417ca3fa1e1080. 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/SEPQA1600111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x029854a83af22e33339e144def61d70cb2e4ea01bc857060f3f2beee5fcc4d35. 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/SEPQA1600112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2ce92b155288ec7da7d9d15518f6e9d8fca994285106737ca139a7fdadd0663. Chain 2 (Bitcoin): anchored in block 960302 (2026-07-30T20:09:33Z), 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/SEPQA1600113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e1303cb00915b9e0262d6dc8375e4028a633bdfc5bd6734bbe2a089ed3fc95e. Chain 2 (Bitcoin): anchored in block 960370 (2026-07-31T08:38:45Z), 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/SEPQA1600114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x153b1cfd58bdd0727cf6a0c93875827022afc9ce4724a2ae48fa4e7a48f872b9. 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/SEPQA1600115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x308ebf8595c2614043196e8a6444120dea3ad7dad7ba9a07585e5b0f36404560. Chain 2 (Bitcoin): anchored in block 960317 (2026-07-30T21:35:24Z), 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/SEPQA1600116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa12b40c82d464923a117cc3f455d6825a0132508889c745f54b5254371857ed. Chain 2 (Bitcoin): anchored in block 960489 (2026-08-01T00:40:43Z), 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/SEPQA1600117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8879e852e6029ee978d6899f09c369afc6bded78a1fda37f11ffafe5b59c4ac. 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/SEPQA1600118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe584c0c6bf17796ecb969c1ce2907f2d78111e8711b9d5c93cd4763a53eec61e. Chain 2 (Bitcoin): anchored in block 960379 (2026-07-31T09:25:34Z), 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/SEPQA1600120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54433dc76270e8889c58af0c9437775e769ef65ceaf90f4662b0121a94c8e0cc. Chain 2 (Bitcoin): anchored in block 960376 (2026-07-31T09:09:19Z), 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/SEPQA1600093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13cafbb70e9ed5c3175766127e680eda2634d8567b73ff9edace63744de14adb. Chain 2 (Bitcoin): anchored in block 960463 (2026-07-31T20:42:35Z), 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/SEPQA1600094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39747dbe90a88532c8c7a9f4553769633b16bffdc4d5e73e6939b8a2a94f8f39. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/SEPQA1600095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04dff6c5964fb8fda6c85afbb2e316d603ffdf072b6c36ddc08fd80218022a5d. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/SEPQA1600096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85014725f4e0ae4ee53490268b95f696b1126630dcf4b3e1c669202ead9e0d73. 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/SEPQA1600097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf36c07954fa4bb1851a3ef6bf03e08c38bd71dc1d09bce5ebe18e51ba9b66d90. Chain 2 (Bitcoin): anchored in block 957244 (2026-07-09T01:44:02Z), 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/SEPQA1600098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa85aad8689b1d917c13d34ead239f5a8f12306690fe00ecaeb3397763895bca6. Chain 2 (Bitcoin): anchored in block 960150 (2026-07-29T21:51:49Z), 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/SEPQA1600099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec57aa43fe83e02d9b8f9f85837cf6b2a71d223746354c299f1d52439ad51f07. 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/SEPQA1600100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8adcd3fa4c44693aa14b4c68ee8074222aae1ed3b9035e7370890d0c9eb9cb2. 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/SEPQA1600101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x828ab1fc4f3fa3cc4612471f9897ae6315513a2a500cfcefb1ca50fa516cf97f. 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/SEPQA1600102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe40002538511db2e49698c0616e32e2428d7eb6bc4acd9f09881c58feb2bdae7. 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/SEPQA1600103.