Johan Tommy Karlsson (born April 10, 1976 in Hässleholm) is a Swedish techno/electropop artist who uses the alias Familjen (, "The Family"). Biography Karlsson grew up in Hässleholm, Skåne (the same
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 0x7035b219d6bb09701253a495a275b38537eb5f41675bf864b1e2074e1ff3569b. 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/95eef9b9-9de5-455a-9efc-80c89569d901.json and https://artists.proofprofile.net/proofs/artist/95eef9b9-9de5-455a-9efc-80c89569d901.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 0xd430dfda8920b1219e7b9345a9034e9a1f771d67b03ac62c2aa5816c2e1d77d0. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/SEVUE0700202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb7168475f3ade9e386aab70627c0f2f0d7bacea680af7659872c7fd715642a1. Chain 2 (Bitcoin): anchored in block 958867 (2026-07-20T13:44:51Z), 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/SEVUE0700209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x750b694aad473668c332c9537f07bd9415f628c714f5fd82b38bbca66a72392a. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/SEVUE0701001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b8eb8cbc21879b94bebbd461b79994d6def325927b3691d2795c730925438c5. 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/SEVUE1000802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa284110f28cbade90a262fbf9c6ab90c839598998f30710a884ef085fc98fe8. Chain 2 (Bitcoin): anchored in block 958654 (2026-07-19T03:55:30Z), 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/SEVUE1000809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x262c51ff070388fa4c5185eecb7d743c57fc643f61f7778331f0109e6decbb87. Chain 2 (Bitcoin): anchored in block 958700 (2026-07-19T08:09:50Z), 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/SEVUE1000810.
Det var jag - Digitala versionen/The Digital Version
Det var jag - Adrian versionen/The Adrian Version
Det var jag - Digitala vinylversionen/The Digital Vinyl Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc79d7e945f8324a260528704959196e3063de15fa9c669535e039590c6cd0ce8. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/SEVGT1201403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b7ec6ffdc9c750afacd7e6611f3ce6edc3fbc6b0dd56915dae7da74879c31d3. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/SEVGT1201404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2820f7f28f5ea3e8b83b92ce12bec9b5f5a9787d03af9670f53fee8d6707d32. Chain 2 (Bitcoin): anchored in block 959010 (2026-07-21T15:20:34Z), 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/SEVGT1201406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5d0f0e55f0f472bc7158c794825de66771ecb0247b374f580dcd315f26fdfa1. Chain 2 (Bitcoin): anchored in block 956742 (2026-07-19T22:41:10Z), 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/SEVGT1201407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe921d35a54c02a1f755e9e33bddd7d09f520ba80f5e6bd1888b0f2b214e723b7. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T05:41:31Z), 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/SE4IT1400204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe0daaf24a1cb2ffed0ae3c4f8574fc6655d475482b18a5bf6f097dc14fd55de. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/SE4IT1400205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa00ce9746e41a11483189452537f015545bd150df9f0497b0c855aef85768898. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T13:07:13Z), 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/SE4IT1400203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf008d472622c32d6427c7f8879d3945dc4cddbf16e62d8da17cb7cc80a1a38eb. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T03:06:06Z), 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/SE4IT1800104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x027cfe2aeab21b788f8ba694bee1d9fa1c4205a01a9eb8350c864e90d57c87cf. 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/QM6MZ2222319.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1de22e8d8c22c01540506162d6cf3c334439023d65189ca6696db265d671a45c. 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/QM4TX2368095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ebb9ecdd52f1b0ac1330f353e95060e8256824065b2b7bcdf8cb230ad6eb651. 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/QMFME2360929.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67ef522d16d5e97dd66f1dce149520db3915bc658c7fad291b201767f976927d. 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/QMFMF2312981.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19f3a2c3b5af34caa956a4b67a6b3515632b2abc2bd470d0e14e037f45830164. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T09:16:54Z), 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/QMFME2360997.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde62822e17e9819c6c44a1d1b460d00994cc18aaf3f27bb213944767fa3c9be5. Chain 2 (Bitcoin): anchored in block 956742 (2026-07-05T05:07:15Z), 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/QMFME2360999.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23c83e197961d075b85c808e685c969c94b9c2d3210679858d8259a0caf8b8c2. 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/QM4TX2487993.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf90c1d2bec018efc2ca3ab07593698a9a5dca847787de4c9310fc759760e1884. 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/SEWKN0900101.