Sonja Annika Maria Aldén (born 20 December 1977) is a Swedish pop singer best known for her 2006, 2007, 2012, and 2020 Melodifestivalen entries, as well as for working together with Shirley Clamp and
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 0xa13d0225631b1d06f3c48ec760566ff987ddbb3f5b490b207c42f22c81ec4ffd. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7d1fa3a6-75a2-42c9-8931-511142f69975.json and https://artists.proofprofile.net/proofs/artist/7d1fa3a6-75a2-42c9-8931-511142f69975.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 0x7578f746f84074d445e49faf5f9db1766ccf99fbeba6e48cdc998a42177279cf. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T19:45:58Z), 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/SEPEL0600403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9874baaf3ba9bd5619dd2ca412f705e854bc1906e35c249e51428400e3f624cd. 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/SEPEL0700713.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8f5d94ff9c94ce795b6735c6783ea7266827f8a2bdfe9978ce0a45739125c0d. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/SEPEL0700714.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fcb48c23308093ec0fa11fb3c82c4ee560ac63acbfdb4288731563b6f17c447. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T00:27:37Z), 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/SEPEL0700715.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55b7ba3da129f2b5ac1de3f0a7eae14f928a3b658a7e66d45d8316a31b4ded44. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/SEPEL0700717.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb0d1ba40c2f905afbdb9a5dcfa7283bfe6bc1fafe5ba264740cffd5375b86a3. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:27:18Z), 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/SEPEL0700718.
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeed99a4d802e81abd006018ab707f2d98c54836792d03ff571c3c9d65feabcaf. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T14:01:14Z), 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/SEPEL0700722.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18601d11feb035032bf0e11cd55d0f01bb25d56c374f671945a15be36f5ece0f. Chain 2 (Bitcoin): anchored in block 958980 (2026-07-21T07:04:12Z), 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/SEPEL0801901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51d43a8a4e7e7afb22350e0dcc80a236c114554a9eae8bbcd600fda5e690a2d0. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/SEPEL0801905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x116f2d897be8a6b3e87bc54325d8da9ddf096a750950e9474a9b41e601a2471e. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/SEPEL1000901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02fc1d94c92c684f35d47cdc55e418096c273536381c3a09510aa22be677521e. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T05:07:56Z), 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/SEPEL1103201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e97603a2ecbdbff5a625ec915ee05271f162c7e3fb4cf85ec88171fec308350. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T02:33:07Z), 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/SEPEL1200205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21fdd5eb93aef833ddf65f9be3064dd9db74106972e6f0542665a8b91a021da1. 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/SEPEL1302001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1ceb59b6e5d0ebe19fef6c9f9e5b081cdd856b7e083f19fc5be7b8d869f8f4d. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T05:09:34Z), 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/SEPEL1302002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60992fc53df313e580864223d104c5e84335b01920a78789351b910af2226421. Chain 2 (Bitcoin): anchored in block 958404 (2026-07-17T11:34:58Z), 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/SEPEL1302003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfeac213425749c0cbd2c220604cc37afa9b8ad603492f5b363ee5df6c9e9577d. Chain 2 (Bitcoin): anchored in block 956404 (2026-07-17T04:15:53Z), 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/SEPEL1302004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1026787e6d4163cbf4f5a24c84bd043bd91a698ed4345dd8ceb160d087c97c9e. Chain 2 (Bitcoin): anchored in block 957751 (2026-07-12T20:41:42Z), 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/SEPEL1302005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd5b07e364915bc0001f4eafad28884f953780752cf9d1095617c435f5e6aa10. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/SEPEL1302007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3935a8e50b4e4111ec82dc9e42458cd9812910530d1db965710299b520f9243. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/SEPEL1302009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4550628c6deeb85cd73fff39b46bb187f3fcb4d0ed31acf3a9e8e5687a7b5310. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/SEPEL1302010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x994ab3573604802ae876e20e488078d3a85959740ac0b98189f6b4063a6cf190. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/SEPEL1302011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9809ccc6e61942fcc12787651a4923899bf9dfec654eb42552f410fcbbb29a5d. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/SEPEL1403104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96c210e926e1b48aa50e150f4763c662c5cc88ce18fe6b34eac31825755905ae. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/SEPEL1403105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb66946c94bd4879f18453226910800ed5102c79fb837402359fd82f19a4d0630. 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/SEPEL1403108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ad29583b27c810ae9b89fce1ced03839e353795359cbb7df35f3c44a99977c9. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T03:51:38Z), 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/SEUM71700109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ad4d5121d690c8ffa96b35e4a7dd13836a46049bee8a216576e5c0052fc3331. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/SEUM71501457.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2559f2ca24077e42c49b8c6c1c070fdd009c584794920fe7ffd96737e63692fe. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/SEUM71700111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0310c58c5bb1f09aa10574f221443806b294a806c8f1cc9347d74eaa35130abd. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/SEUM71700113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9832e688148875e34befb7dd47aa03e5e813cdf63dc4b933180fbb2fee4c7dc. 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/SEUM71600788.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x268794242a9d15f80fe9518accdebbdfd815781c4d8b4cd37916145527f16f2b. Chain 2 (Bitcoin): anchored in block 958115 (2026-07-15T09:51:39Z), 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/SEUM71600789.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89f74fea4556d961fec483768b0a8adbaa64e4e59b7c584d80ff61da5a718eaa. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/SEUM71700116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91d11be6bcb51d07928cad72dad7864f10031cd30c87077fb0e9e9f1af12050d. Chain 2 (Bitcoin): anchored in block 958839 (2026-07-20T07:01:59Z), 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/SEUM71700117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a65e9d7e1c1f35958167a2ff4dc52d27d7dffe27eb1028f557cb9de2b236b7f. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/SE6A91906201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8109933f30a4973909f8fba5d3e2acdfea6d01b02aa62403561a0f7c6d72573. 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/SE5YN2100801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaaacf33660f621ca254fb5c68dc63c96a9818a5906d7e3a77f38d2910face82e. 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/SE5YN2101601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefe0549341a70d7266bd15306c8a8e4aa8756e4da1579767dd7fd8cc98024843. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/SEVGT0802203.
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x717ef35e04c9dd4f8bf6846918efd79cbbb8bc078a97b7ff1e94f8449a539e36. 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/SEPQA1202148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09385940c0a895dc375ed83278fd2c08a772ff222aeb2c0d59e76366355c7679. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/SEVGT0802208.
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