Makthaverskan are a Swedish post-punk band from Gothenburg, formed in 2008. Led by vocalist Maja Milner, the band combines post-punk with elements of dream pop, jangle pop, gothic rock and shoegaze.
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 0x6778f341191b6fe21a81cb467811b74a558580298b9c84937f74088f98eb0301. 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/406ea0ce-f5bb-4aca-834c-c95c4b4a9c4c.json and https://artists.proofprofile.net/proofs/artist/406ea0ce-f5bb-4aca-834c-c95c4b4a9c4c.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 0xed26cceb8ec562d92f934ca80e6621e2717838ee56780259633d47035afc78eb. Chain 2 (Bitcoin): anchored in block 958742 (2026-07-19T16:26:42Z), 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/SEYOL0901001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2db3da8843ad50ac8f3539342f9cd61eceb0f37923b1da4829b56bd60bf6910a. 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/SEYOL0901002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x682068145d632c2cbf51723a6fb88187d920ed2b91d2de83ead13ed5bfe0c565. 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/SEYOL0901006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4017765afca5c01d971cfa7443ac79a02648149b58230a731ec1956e3fab8b0f. 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/SEYOL1300407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa20b4440f7bac259284bf42bbd6a26c1f2e03edc10189b127009a76a407b974. Chain 2 (Bitcoin): anchored in block 956402 (2026-07-17T02:26:40Z), 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/SEYOL1300408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4d8e30aa7fa187714062022bb1c369c62c20ae465f103f9e1e84acf2bffcee2. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/QMCE71300087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8094fa8280455fd3e3a6bbb4ca867e2c5c795afe614bd71c3685b4757619bbd. Chain 2 (Bitcoin): anchored in block 957759 (2026-07-12T21:46:51Z), 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/QMCE71300088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed3ded3d3a27b91e46089dd7c7d13db316d611da12f124c883852862fa703ead. Chain 2 (Bitcoin): anchored in block 958582 (2026-07-18T16:47:25Z), 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/QMCE71300090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3abdba8664b74c4ea6e7b57475ff251b74ad6c80bac0d53efb6f0819b1b26041. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T19:09:53Z), 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/QMCE71300091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6cc4965919c0016157890c84c349a9349fa1eaf623ee941e06f9716ea5d6585. 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/SEYOL1701401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02d20763f5c717ba85b5bfc2b8514fac00cf4a1c3dc91b1bdcc1375e82317db0. 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/SEYOL1701404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09a0a001ef5fb688ac2d3e109ef8f472ca9c91a617d921b5f51856f5f6151425. Chain 2 (Bitcoin): anchored in block 958083 (2026-07-15T01:50:31Z), 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/SEYOL1701409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53ab5c2e434a3810d3f75ecbb013977ebb20686498535f1f646393b67a3e7d21. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/QMCE71301643.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53792bd2627f533d3311651205cd341e7ea9a3729bd0c0e10dd068b8c20bcb94. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/QMCE71301645.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf240ada0e499c331392ae5d85a7f33e3d29d07f9b1cbe770f860b96520ee3972. 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/SEYOL1900101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a95b782780e5eedaa4a4b0eb017ea7ae1329711cc07da5bd78068aa76a26f53. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T18:02:20Z), 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/SEYOL2100102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a95b782780e5eedaa4a4b0eb017ea7ae1329711cc07da5bd78068aa76a26f53. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/SEYOL2100102.