Gustaf Erik David Norén (born 1 February 1981) is a Swedish musician (songwriting, vocals, guitar) and actor. He was previously one of the two frontmen of the Swedish band Mando Diao and is one half o
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 0xad8dad93a995dd9de31eb9064000a2ce5e8404e216578baca086f3291eca10c9. 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/f1016563-86b4-4978-908b-b94c3a06985a.json and https://artists.proofprofile.net/proofs/artist/f1016563-86b4-4978-908b-b94c3a06985a.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 0xd013949389e56b17f9cc331099a7efe7272690ca1a04f1d8a72a96ed7a6d45c4. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/SE7PB2400003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69a63787b1306f7618e19facc93e9fb8627c37c9e48df47bccdb0cec9c5d1456. Chain 2 (Bitcoin): anchored in block 957583 (2026-07-11T15:53:17Z), 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/SE7PB2400002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7533376099261513e1329a57312f610e1ba93bb4f61d5f5866813b0918d3fca7. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-16T22:37:47Z), 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/SE7PB2400006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b7e06e71cf31c2060787b3d009ef395f9bc1e25726e9998928cdcc29c9f41b9. Chain 2 (Bitcoin): anchored in block 958392 (2026-07-17T09:46:31Z), 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/SE7PB2400007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59044cff531990fd43d7ca88f5b1ba502b37c44b7e061f22012b0e7498237f45. 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/SE7PB2400008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e18919fdc94356b485db7269d46314807a9631f07699eb381f0b73da14f1d42. Chain 2 (Bitcoin): anchored in block 958596 (2026-07-18T18:42:38Z), 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/SE7PB2400009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3047231fff79dd271bf92abac233b222b94bf94b05b6b30b4bb7eb25e353fdd1. 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/SE7PB2400010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4217b348f29dc2cdbd4876babe7378e5523b23aa45e407b8f8b00f6dbfded15e. 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/SE7PB2400011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7c5c60b3ef333fd531d57ec7a2dc58dd1c7d77eef8ed27b4151df39404168da. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/SEYQH1614001.