Dunderpatrullen is a Swedish electronic music group from Östersund, Jämtland. Their music is mostly based in the bitpop sub-genre of chiptune, but has deviated into other territories such as synthwav
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 0xfd9b75e12f3d4b9c7e1c508fa0177d37886ec771d44e7cb760cda84c35336b95. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fa9acff8-4ec9-489e-b968-dd3c2fc2b566.json and https://artists.proofprofile.net/proofs/artist/fa9acff8-4ec9-489e-b968-dd3c2fc2b566.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Fan vad han skrek när vi åt pizza här sist!
Fan vad han skrek när vi åt pizza här sist! EP (1)
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 0x1f151f350a849dc910480232138fb333bff46c21b78b789dcfb7158ce0fd97c5. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T18:30:22Z), 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/SEYOK1004218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x697662222d2898e5ab23f1599f06c05f4eacb8d4dcdc6356e9a22f91fb84e23e. Chain 2 (Bitcoin): anchored in block 957919 (2026-07-13T23:58:45Z), 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/SEYOK1004222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf28c8824dffdb77c7ed99e8273ba11db10e2ced51cd69031b2a787756148b4bd. 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/SEYOK1004223.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf33e1ac4b03694f9db41873b441878d0fa91a36abcf63926c56eabd08600da1f. Chain 2 (Bitcoin): anchored in block 958662 (2026-07-19T04:43:15Z), 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/QZHN62085877.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x870d9ce1bd50a8869725318a3f212edad666b701017fdcaa3068a5f0d5c9ba7d. Chain 2 (Bitcoin): anchored in block 958876 (2026-07-20T15:01:22Z), 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/QZHN62085878.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x369d644a9e898bf671b5e5adbaa8f17faf3d9fc083c5e242072aac0901cb1842. 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/SEYOK1221242.
Oj! Vilken Överraskning! (Dansbandsversion)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d1e893648519f693915533076116d303d04be5dc51b6c1111bc5c5df24d62e1. 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/QZNWS2065208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9630471d764a6a1b6121ccbe67e81bec5bb824c21113169713f15469d5b71ce3. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-16T00:13:13Z), 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/SE34N1400108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cd3e4d2f8da4d49b019053acf46c39091860b6afb08f168d5bc33faff601434. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/SE34N1400109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01b6982fdc6b4c9bddb41a6ad565824a26a57053e22795d2e2ff2b37fc136181. 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/SE34N1400114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf26319318c05eefc0fedf36fd5fa5b067c93b474a7a5210b49753152b18101d3. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/SE34N1400117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x766cd202f053ff627868283e34cf00f511d97027146f8897b1e9a2f7a96e5c29. Chain 2 (Bitcoin): anchored in block 959031 (2026-07-21T18:45:34Z), 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/SE34N1400118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x071f9785c1e89e98188116f21f06e48b8a402dd818c48b75dbeb9faff8ed6c40. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/SE34N1400119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb0ea9325a6a5815f04f4f27f59fb798147855236f64f9731ec2a53a0851c127. 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/SE34N1400122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d631069a09f3c946afd0a70f16768afb9dacd44d859a809e0f183561f77fcd8. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/SE34N1400124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62310648cf0c4ff56072388bf8df77560e42924efc838791e0739b9b007f87ca. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T18:54:44Z), 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/SE34N1500133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6538dfa7839855dafd115c4a0ac93bb5809b6dae9e72d21144472215a18fd32c. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/SE34N1400110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf444da3f542b08e114b4010ba158871bd3b3d03d8470a6875bda3f758998abe7. Chain 2 (Bitcoin): anchored in block 956711 (2026-07-04T22:48:52Z), 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/SE34N1400111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8003c6687727395298dd98e525ff0e6d9ab391b4c0f5531cce3eed6ea557286. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T05:01:45Z), 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/SE34N1400113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f3bf0f83b127205d742a8c94a64bb6327425ed6e6815c17be1d6c5354ac27cb. Chain 2 (Bitcoin): anchored in block 958587 (2026-07-18T17:06:26Z), 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/QZES51868237.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6846a7f2d3724a6db708feccbd51db9e61aa047165349b6b4fbaab84dd7cf832. 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/QMPKX1700344.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4753508c30c58d8b898608886743e00e80950c64915011faf9691791e5886ac. Chain 2 (Bitcoin): anchored in block 960354 (2026-07-31T05:48:18Z), 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/QMPKX1700345.
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 0x1d14be414c3f209821ac0a6895ab3aa60939f11b4f9a56477939e7b57cf870fd. Chain 2 (Bitcoin): anchored in block 958329 (2026-07-17T00:28:14Z), 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/QZDA72064779.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb5cb20eb20fbc0b14abf4bc775dc491423762f1200d50930c86586c69f93f08. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QZHN42017244.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x744c426db86482cd2d7fc3984ec8bc4d16ebc400518a91406e0e1b86a423d36b. 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/QZNWY2009133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdccca6c60831b5bde814b621b53bcc2ba7ea25e69f06cdd4add6c45c397fe298. Chain 2 (Bitcoin): anchored in block 958917 (2026-07-20T20:03:03Z), 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/QZK6K2249801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5723bb9dce205b093c25a501f750a0174744b6d0dded7bc9e81966b6a45ae940. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/QZK6L2328261.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc86ccabb686f09c9217bea1e7f27189d65ca476a6da0fba4555c3ae187ef3570. 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/QZCE61817197.