Anna Sofia Helena Källgren (born 17 August 1970) is a Swedish singer. She sings in two other languages, English and Mandarin Chinese, in addition to in Swedish. Biography In 1982 she debuted on the
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 0x1c48d87e6869e13b5c36155aaa1208682ecd7f8135498bad8e132e2619620465. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ff5d0679-3405-4ce9-a9ed-b81f2f522cb3.json and https://artists.proofprofile.net/proofs/artist/ff5d0679-3405-4ce9-a9ed-b81f2f522cb3.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 0x12a133fe04259f1712812e62fc9dad7c3b71b0139da8317c21df50c66d8c7988. 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/SEBGA1601226.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0a4981ed33c608744fd5605822916efaf16a15c651370912e7fe8051d2426e9. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T12:46:05Z), 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/SEBGA9002016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa44a26d778da6500df60369b2a4d5af59f867a7337bb75a9ef93b659e77ea81c. Chain 2 (Bitcoin): anchored in block 958865 (2026-07-20T13:00:16Z), 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/SEBGA9002020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09a85f1228fb115285a998be3383f026d28826d7da100c89fe3091b5cf37f225. 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/SEBGA9002023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9049b5491e297ebdf104c4fbf235a274a45392a61dbd827e0430140a6d2600fc. 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/SEBGA0800003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefbb0a45fc6dd4ed17c97b2b7a2d4f63456068f33616b8f9df3c6c92378e06f5. 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/SEBGA0800004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce59bfaa34072eabc99e761ad23cd37affd038b2409a039ff49440eef87fe52a. 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/SEBGA0800005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x354cab8aa5395c7421c5f0fc16fb31660624102396611f5f2e9244ddda4abd08. 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/SEBGA0800007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec4e67f823b49c2b65d9234faa50beb20c3a8dc299b2a1ce2b32b35430218b18. 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/SEBGA0800008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbaeae1c0ba1683ecc59dfbc5867f165c203d7a08bd6b88c0f53a962e48cb1bea. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/SEBGA0800002.
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 0xc68e60904d55514c76e89d24d6d01709ee11530643f18f870ae887b52347e04f. Chain 2 (Bitcoin): anchored in block 960294 (2026-07-30T18:46:00Z), 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/SEBGA0800006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdebcbe1ee2f630a4db0c084316a016f86d3abf70ced8e361e39bc86d4d7214e. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/SEBGA0800009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6754486e5cfa822d75f43633b84a48836f45571341abee5939a2ecfdd4577a12. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/SEBGA0800011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ddab17f83d71d9d37714e31cd43592f21188cac50ae62f7b09e8d69c8a3ce7a. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/SEBGA0800012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x334bfc852176dd1e68a8019b9543a9efa750fef42642290c4bdfe958a50e760c. Chain 2 (Bitcoin): anchored in block 958870 (2026-07-20T13:49:55Z), 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/SEYFS0800102.
Mio My Mio (from "Mio In The Land Of Faraway")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81efa3f664f423b4d499813d932c9e7432d7efd7e7c61df3ee5cb45a37f62d10. Chain 2 (Bitcoin): anchored in block 958935 (2026-07-20T22:08:19Z), 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/SEYFS0800105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe35248cdbf2fcc4b6b46911b12f58d80345678fbcafef01ebdcb43444e8ebde7. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-17T00:07:21Z), 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/SEYFS0800106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16534859df151c0f0a7564ab3a3fc5598375f43826e171af86af48d68c86e0b3. 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/SEPQM0614869.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5b4a94adbc6f51e60d6caadf4dd90075806cc48b3ea06af2ce687f754a8878b. 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/SEBIA0300154.
Skönheten och Odjuret (Duett) - Från "Skönheten och Odjuret"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf71792f6d358a0014bedd99c816e4925d75c9470f65fc1a9968e0efbc6507332. 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/USWD11677067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc39f7447e88fd63f0daa1cd83b6004ea9fa0592fa128e1abc829504b393c2a5e. 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/SEPQM0613750.
Jag går dit du går (Con Te Partiro / Time To Say Goodbye)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a156261e0c28ca45d07754f66a54ca0fa680e021b2a709d2816cab41d9b2484. 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/SEWDL6144534.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc39f7447e88fd63f0daa1cd83b6004ea9fa0592fa128e1abc829504b393c2a5e. 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/SEPQM0613750.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6677f45a6304947d93a18cd9bbc9276fba7a7cb8323bbb71bec60e37ea127572. Chain 2 (Bitcoin): anchored in block 960354 (2026-07-31T05:48:18Z), 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/SEBGA9002018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29bb84ece9dc4120f3cbc848efc8b0f92f745f9fb87d0db8735706efffc4a781. 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/SEBGA9002012.
Jag går dit du går (Con Te Partiro / Time To Say Goodbye) (Instrumental Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73df0775f77ce11f4501765619d5ade61ca683df71b8a2af25e16121ff4aed8c. 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/SEWDL6144535.