Klas "Klasse" Möllberg (born 21 April 1948) is a Swedish musician and actor. Career Möllberg started performing when he was 18 years old. Later he met the 12 years older musician Lasse Lundberg who i
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 0x47398cf9de360ef6ce77926ee951b1d7e606b8b5c5328e4084b46fa5d8f7572a. Chain 2 (Bitcoin): anchored in block 953807 (2026-06-15T16:39:18Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f371fb12-8d24-4477-a58d-af0e9b282207.json and https://artists.proofprofile.net/proofs/artist/f371fb12-8d24-4477-a58d-af0e9b282207.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 0x380d0c8974da9a3e4d6be0a5a7cdffcea68dec569c93c43cc477d6c7fd03890e. 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/SEPQM0614436.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c07a966ff094842982b8cccad327cdf092814d03287690a280173af362a6355. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/SEPQM0614437.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e37028f0114d6a7030a4d0348f7df5c609c54c6b966574df60c31ea7a27e320. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/SEPQM0614438.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9f29c5ca223dbdb68979e40bc4c6b8c852fa46d071708b39a9e57e2aef4318c. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/SEPQM0614435.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x286991be376917086957c38580ece8831fd68896e9458303659acb99f4cfe352. 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/SEPQM0614439.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb563aedfefb0d5e611671f6c582606bb350f4ec7359b7c759d51cc9d259e118. 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/SEPQM0614440.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e3b01366d5c76e50b41c9d27fc897f69da0996d573e9fc37a3a074f89ba46f5. 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/SEPQM0614441.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bee12af8ad5a3082dd5c71c24b623c3af0baf188f209395a076115305eef393. Chain 2 (Bitcoin): anchored in block 959118 (2026-07-22T10:01:58Z), 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/SEPQM0614444.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa988add365948d46b71228157f1bb3c8f4000fbdecf5a49216a30c757903074b. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/SEPQM0614386.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd7f50ee0c64a19f9a8daca2a1572667b803e083be07af9eca1fa1dba045422b. 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/SEPQM0614445.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ca6ea1004bc9bc98e4e9ef02a0f3d6eb858567abe904bfbf14adba9cc8aaf9e. 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/SEPQM0614447.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10a163b8bcf75c0864fb62fbb2cf59720c835edb8273498a5bcd6af41ee578a0. 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/SEBGA1400121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7e338d34ef27fdab1eb7aa8769b0fd9169c785dbe32d475171883e67e1d3c91. 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/SEBGA1400124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x666eea15de5849c78b5b90a9bbdc2b08af501032e3b1b814995e3ad994bbf76a. 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/SEBGA1400127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4bfcaeed8c993df236cb2fa7d30f56fda84ae50536872bfcc797949ca31c6fb. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/SEBGA1400129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cd666b9e66b212ab52680d2c9645028b2c1b7f5b0080e0841fda6764ceb5d1a. 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/SEBGA1400132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdd74b55d5fb8a56a53b0859cbcd0d6d79e26adb64672bae2e58b7de68cc2b61. 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/SEBGA1400134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f70233ed99766a5331e00eb8da89d4516999ddfa07fb0b768c890af199b8638. Chain 2 (Bitcoin): anchored in block 960187 (2026-07-30T01:34:28Z), 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/SEBGA1400136.
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 0x78f1d307b648cc3548bbb0d667ae12cb4f70a608b00aed69f386a1fb10393c68. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/SEBGA1400122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0158c84bab2c7272ad6f7f805f1baa298baa4077c356bbfb56e783fe95e7fc7. Chain 2 (Bitcoin): anchored in block 960456 (2026-07-31T19:53:57Z), 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/SEBGA1400123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc53e1e06d3fd13615c51c7f067e127fa549de974df780d4e18897112fb429386. 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/SEBGA1400126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e9b4880018a3e37315cdb550f4dc6b1985f40eacc8940535f3cc224f62cd00e. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/SEBGA1400131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48644924cd0fdbdc40a32d53d867e275e39c7ad67e8d26031ad9bd4ff99d52ac. 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/SEPQM0614966.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x863597be1652522b458c2cf4fc49787c62ca06776edd757ac637a8721fd6219a. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/SEPQM0614635.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b4aae0b1a226755d52dcb2e0ff74e8d63b1148ae1f17a9644484ddc021b54b2. Chain 2 (Bitcoin): anchored in block 960370 (2026-07-31T08:38:45Z), 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/SEPQM0614475.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54e895fbdb526bd8a898d32443b5dce3958ba378e6af4b29631ee80ca42b38ad. Chain 2 (Bitcoin): anchored in block 960376 (2026-07-31T09:09:19Z), 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/SEPQM0614471.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdc50fc97ce5499f4d0afa9a8ba9d143f8264a34cf88a84b3ff7241f48e333d9. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/SEPQM0718085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1e289dd662eefcbf50e9a10fa987bb3a4fe6432c12f7d28355aeb1cd7f11143. 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/SEBMA8096020.
Alla Snubbar Vill Va En Katt ( Aristocats )
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36a5d20bccaa33f11e8eaf41a24e24009ca01a2e83cbd60b57566f05f80fe18c. 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/SEBMA8096030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed5574a2f1fe3e37513cdf214f2edc4afa33097f5da2e86a10c455223564a2ff. 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/SEBMA8096060.
Var Nöjd Med Allt Vad Livet Ger ( Djungelboken )
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x571cc04c51371931c888f85cd76006433683fee7c03d1ed4b5335eec4795aee9. 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/SEBMA8096100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99d7967b7c68b0fe3436c5d49ad131e9b73b63be4eac26634730e6642fc19ada. 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/SEBMA8096110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4571b233e1c71236b222b5b9f20329d3f3720d5a9e394d83aac545f55c20dc02. 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/SEBMA8096080.