Detektivbyrån ("The Detective Agency") was a Swedish electronica and folk music trio from Karlstad. The group consisted of Anders "Flanders" Molin (accordion, music box), Martin "MacGyver" Molin (gloc
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 0xb029657a18c12a5deee6c5ce4688c5f42ce2d79d13f0314dd0b962f4678fe98b. 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/44b0c829-6cec-450e-9a9c-2558a304e1ee.json and https://artists.proofprofile.net/proofs/artist/44b0c829-6cec-450e-9a9c-2558a304e1ee.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 0x74ba9e03b7890b34cfb4c292e41511ec1945889533ad34d1ec5d8733086751c9. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T14:38:07Z), 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/SEXDQ0600102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc20f84b0c9c754c917ce3d2676944009b867e4caa61d12038476b2311e4ec81. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/SEXDQ0600106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6c7ffabfd4d3ccee1f0c12e1b28658fea9d7eedfc7dd4f4e04bff53690f2286. 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/SEXDQ0600107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61da90b4bf9ae06b335ea69bd5d66d43b2bed948f0b4edcb76c634109fdb8e68. Chain 2 (Bitcoin): anchored in block 958401 (2026-07-17T11:10:25Z), 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/SEXDQ0700101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb3d29351b7dd6a1f6daaece7ffd78461fac2c136e07f0f78f1af61e3da46fae. Chain 2 (Bitcoin): anchored in block 958552 (2026-07-18T13:15:29Z), 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/SEXDQ0700102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41908d892edd68d4e35cd1899d38533d0c80a62a049d8a191706145b356cd1b9. 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/SEXDQ0800110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fd0889de51feebfbcb5810a9b46b401bb4f25949cb70ccbc522045cd8a14fa1. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/SEXDQ0800111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bc8cda105ea42854485c7a142800aff96e4e08794bd77b340dbae3826e7ae63. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/SEXDQ0800104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa62cc5b1caac68f67fdb25c2ac509eee81f183a6ee6a11ec1ee366e552d9986. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T13:14:32Z), 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/SEXDQ0800105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1b31f2b8a937b8774516dad5968a3697dbc4f22f70a7c5cec0226ac9272d5f4. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-15T23:24:33Z), 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/SEXDQ0800107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4256a0da7528b5ba2b2dc052a6a96a02b604377a6989648a2a43ebc9b9f01801. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/SEXDQ0800108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefd8c501f19fd3214b037317c20d40b7f555672b81abadd078aa60f8896ea125. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/SEXDQ0800109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2357c94fb92e93dab163576997364b81b127a73ffcd65845bfe7fa99f6003010. 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/GBKPL1897382.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97ad1985d5dbfd6894298107c8ae1b23c8a727e33f6a50a6be558a8fc509ce3d. Chain 2 (Bitcoin): anchored in block 958346 (2026-07-17T01:47:42Z), 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/GBKPL1897383.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6ebe8bd073caa4a071fdce5f601027668506f1278f64aa26c3dde70a7237f83. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/SEXDQ0800113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x468a702ce3d0b753d3302ba0c0b5e70c724261332788bc294df16a3fd823b853. 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/SEXDQ0800114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeed6106e2ab2c282b637a579175f55b8eac67d1af114b5f4537cef4deda73dfe. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/SEXDQ0600103.