Maria Solheim (born 19 January 1982 in Alsvåg, Øksnes Municipality, Vesterålen) is a Norwegian singer-songwriter. She was discovered at 15 years old, by a travelling musician, singing her own songs in
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 0x441f5b73139591d1b4be6d6a39034b9606ed6421c45d2062912d19d354aa036e. Chain 2 (Bitcoin): anchored in block 953772 (2026-06-15T10:33:29Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c826624e-be78-447a-8d3e-42d1bd4be9b1.json and https://artists.proofprofile.net/proofs/artist/c826624e-be78-447a-8d3e-42d1bd4be9b1.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 0x601309f3b8d9f4c44704ebbd4ec4b9718b95cfe60e30855a0e8da9756ea6c047. 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/NOFKF0102020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18805873d29e191de387f4723ab551db398cb931df13610323e5ce7462d58f6c. Chain 2 (Bitcoin): anchored in block 958376 (2026-07-17T06:41:00Z), 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/NOX9X3129005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7bab8332c163265b441d2e2c413700f4e42ffc23f70828efd6796a2f833d661. 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/NOFKF1802200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95134e69ca15eadcb6204b3f1e5f00e2965b100016ed7900b5ca3d9daa8d5391. 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/NOFKF2009150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef46bb0646957bab15aa81110d1fc9f8ecbc707125e3d5e113c00710ef638d0b. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/NOFKF2501100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x879fc419b85db3bb38eb294fd3b3c87a5c68af13e07ea29c5c00ea0a70f8a595. 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/NOFKF2501030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51b6d204d56ee9985857c3ebbb2366f9fc54a5b1d39dc4460e7690102595f98a. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T07:30:05Z), 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/NOFKF2501010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x879fc419b85db3bb38eb294fd3b3c87a5c68af13e07ea29c5c00ea0a70f8a595. 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/NOFKF2501030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef46bb0646957bab15aa81110d1fc9f8ecbc707125e3d5e113c00710ef638d0b. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/NOFKF2501100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc3aca06a37067db20e518031ccf6853446dbb51e1bbd6853b544e1f01ad468f. 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/NOFKF2501050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c8dfe9ad70c65f1108b2314a0f793d464b94b8b82836acc1a9ad6382976d43e. 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/NOFKF2501060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09246115a48c901ed02cfb3f2f9c65d56ebeacf24a8f630dc218a2b2e1619029. 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/NOFKF2501070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb092e40eccb6f67fddc933375ed927aecb47c8df1af7733c5cf1e70887f39687. Chain 2 (Bitcoin): anchored in block 958378 (2026-07-17T06:45:39Z), 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/NOFKF2501090.
Sorgen Og Gleden - HKH Kronprinsesse Mette-Marits Utvalgte Salmer
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3247165c443ffbe872769298608189db206f07610a9533192dd80a03cb8e5ce6. 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/NOFKF0803030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c59be3a64bb93727f9799f6df229406014beea85cd5ed7d66a854e2619b3bf2. 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/NOFVV0281062.
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 0x15dac2603b29a1ebe688df791416a3196af91ca08343a679c611f5f1493faae5. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/NOFKF0304140.