thumb| Mange Schmidt at the Gröna Lund, Sommarkrysset|250px|right Bo Magnus "Mange" Schmidt (born 17 November 1973), is a Swedish rapper. He was born and raised in Stockholm. Discography Albums Ma
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 0x5b8c52fee0e9044eb9ccadbfc377b4f657cc63cfc294157ce0c6fdd90b8d8bfe. 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/c9e53d7b-fd8b-4e97-a615-85614e956203.json and https://artists.proofprofile.net/proofs/artist/c9e53d7b-fd8b-4e97-a615-85614e956203.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 0x23de80d2b732e2295be7dfce4cffd36983bc58c0032c3f099d013d3acf13de77. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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/SEWBD0601412.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d84ddd04ee52bef7d27ca25d15528049615fc8a7c6d530f33b67357c2b8c9a2. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/SEWBD0701407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf060aea910c7af60db3cc1f80a657b6fb7ef4cefec2c95c0c4f0846c62310cd. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/SEWBD0701409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0dde063171fb13c702ee1b330f5b00d45416cea0601ab3850a7496a8b655b7eb. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/SEWBD0901421.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3d86ff320b1e0269ea9548736069f1e760c30d22f6835d70b3d4e1e57742969. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/SEWBD0901416.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd18432c28f684668064f7cee266eb595cd3889ea0836aa9487f4cfb55bb4c3ce. Chain 2 (Bitcoin): anchored in block 956425 (2026-07-03T01:28:11Z), 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/SEWBD1001401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x914484e21eaee94f356781d4f4dee0c4c116fac5a0aeb4f20d0e9030d48d6a7f. Chain 2 (Bitcoin): anchored in block 958991 (2026-07-21T10:04:40Z), 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/SEUM71200884.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f92b56a8fca18da83f5f0dc398ac1d0820cd022622a4f5b01be59bd36b2a25e. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T16:21:50Z), 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/SEUM71300881.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b2821418d155f05eb13ca869d992d478caf6ef03c40bc29d2d82384393c4484. 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/SEUM71300886.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x539b14f931c3b680f3b3cb8d7151f6a675592bf28ef3972bebab6ea4b50c9ce9. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/SEUM71300865.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x401de89e890a8f4505a199f57c70c4369e085d095c32fb7b22f2179012a81887. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/SE6QE2065061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e6327267462a9b05f015c7fbeebdbbf1f14359943eddd5399ac739336265e36. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/SE5BU2216984.
Razzia vol 1 - There's A Razzia Going On
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd035a9e1c8c373d4518333dfd1a13cd912969d84b2913e0e345b7ccddecc3361. 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/SEWBD0701405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12acae70c6585a486411d8fed505bd379d0eb2e09dc1a6e1e175c63340963e06. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/DKFJ41700173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cd91b7e92ae39ab29a142c52dd4a5c5ca35c070410a3e3fc86d3989ea86108b. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/SE59D2313101.
Systembolaget (feat. Mange Schmidt) - Kelde Remix Edit
Systembolaget (feat. Mange Schmidt) [Kelde Remix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72c665346cee369fa52fa4bb3a75bbff28f460d9fc85835986c2f2ef5c3c6804. 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/DKFJ41700177.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d76dfcd1b49478da4bc77afdad332344573c288488341408b05a9918c2aca38. 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/SEVGT1003411.