Per Henrik Dorsin (born 20 November 1977) is a Swedish actor, comedian, singer and revue-artist. Early life Dorsin's grandfather immigrated from Poland to Sweden after World War 2 and in the 1950s th
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 0x06e2f57c0c01ce348fbcfa0a6d8a90f8f4f8b0324eebd4baf74b2a4d4de23961. Chain 2 (Bitcoin): anchored in block 953819 (2026-06-15T18:31:52Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fc8efbe0-57f2-4b7b-a671-3fd7e215709e.json and https://artists.proofprofile.net/proofs/artist/fc8efbe0-57f2-4b7b-a671-3fd7e215709e.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 0x56270c3608ee8899414bdb61ed282424b114808362b6a0f53fa84ad9aa853349. Chain 2 (Bitcoin): anchored in block 959096 (2026-07-22T06:47:36Z), 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/SEUM71301991.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9935105faacb46143866ed1c9227059dbb514990f350057a5d44c4cbae76d3a3. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/SEUM71302729.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb28ef7b4b0a6562c52f220dc494b86f33cb4a0207a5da389b7029dca34c4200e. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/SEUM71401973.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac1e11331e8d53d08212281b1470aa66112451dac3485af6e522929f7b8eaa4b. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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/SEUM71401979.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9d0357956217fff7c9d3e7ffc81980576d4551dcaf47ac07dcd7baecbce1f59. Chain 2 (Bitcoin): anchored in block 960173 (2026-07-30T00:11:40Z), 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/SEUM71401971.
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 0x3ccacceff30f047b079eaad006c7931f2b5506849261de0be8a6595e5cb35c15. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/SEUM71401972.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc5779c1404d3113bdcad40955e740126cbee1f5e669e4ff94f79f5991d30577. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/SEUM71401974.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f7cc42cc2f3f5b570d50bda44a4216b210b25aa408e1b1f1d15d189c99d245a. 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/SEUM71401980.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2920d7398a40e8e7f0e166100a52069ddf7944814dea5e3639a72c35f86d5dcf. 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/SEUM71401981.
Tiderna förändrar sig men jul är jul ändå (Julsång anno 1952)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3990c728aab1ce2e15a5d08d19e51e67350c2c2e5dbcba268b49903264221477. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/SEUM71401982.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99da5df721ab46c614695dcbad66a3cc2b621c2cd117fdd43f53a4a6bb135c5f. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/SEUM71401983.
Det löser sig med blåbärspaj (Från "Svenska revyn")
Sagan om Karl-Bertil Jonssons julafton (Original Cast Studio Recording From The Musical)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b868b40cacd3d570bd748b7c464f9d4d6ca47dc0b7344974c394ffb4a70cdb3. 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/SEUM71800537.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x060b1563dcdb3f00ee05a36608af19d715a3b69431d9ccd9ec07e6d9a7276818. 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/SEUM71800539.
Musik, sång och skönsång från Scalarevyn
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd009aac251a5e0b060174894fd186a622ad6ec08a8074902ba0099bb5c19c1e. 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/SEUM72100863.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f18289c4bf5b51f81bb0c2d66c8e7c553329c42e5ce805b76826dac5dbfc7c2. 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/SEUM72201012.
Har ni hört sagan om Karl-Bertil Jonsson?
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c04222529b7d7ec56d6e46688cd82111445c981665f3699f267ada40f6f03a3. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/SEUM71800532.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x444caaa14066ff57f27e7207205c9e20e823b1124c39c5c0d18a3fe9847fa3dc. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/SEUM71800533.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00608809d0a1b3a01d591c7ddf063d38ff4fbb078d15019822c5604a4729947c. 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/SEUM72100867.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x755f2032157ce13e5b242c063cf02415dec264c8153011d2a05cb70710541a65. Chain 2 (Bitcoin): anchored in block 960509 (2026-08-01T04:30:37Z), 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/SEUM72100872.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb2df1c6a9b39c75f5c9352c5429ec7cb7b962320231f8a5d28fa75f3cf4eb8b. Chain 2 (Bitcoin): anchored in block 960160 (2026-07-29T22:48:59Z), 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/SEUM72100877.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8de83753720c998d40a380b0a7398219e7715e96078ae9f29f4fac0a9b945427. Chain 2 (Bitcoin): anchored in block 960419 (2026-07-31T15:20:33Z), 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/SEUM72100879.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98801f13c1bd92b86545bfac665dae0c077c21bffa66d42772b25092b49d6f13. Chain 2 (Bitcoin): anchored in block 960381 (2026-07-31T09:50:11Z), 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/SEUM72100880.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8a305723caf2f419711c7b136c929060af01ecebcb6f53b85b36e011f1abdc3. Chain 2 (Bitcoin): anchored in block 960503 (2026-08-01T03:41:24Z), 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/SEUM72100881.