Maija Einfelde (born 2 January 1939) is a Latvian composer. Biography Maija Einfelde was born in Valmiera, Latvia, and began her music studies with her mother, who was a church organist. She continue
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 0x339366601dd9117cdc4d3d940bd9a14e1cdb96c680bc0b56ec670b4e2d619c5b. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/398ae446-18e3-43c2-8d47-0d18c53d9edb.json and https://artists.proofprofile.net/proofs/artist/398ae446-18e3-43c2-8d47-0d18c53d9edb.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Aeternum: Latvian Composers for the Centenary of Latvia
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 0xfc370c1e9eb67f4bd53c3fea11139e1408641e3a1a24ad119ec7150814459b98. 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/LVL152100140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0db2b78811ea02edee20a7507eb8b0e0f36bcd7f9d38f8074dc191f9d1a8f905. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/LVL152100130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b927dd682d802e30beed20103d1cfbd51c17c3b10363592e9550e13236af13f. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/LVL152100133.
Baltic Exchange: Prauliņš - Missa Rigensis and Other Choral Works
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3837b9fcffdf03f075722e5572fc51a9f39e50bbc4717b9f4ac1b23ad6007211. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/GBAJY1074702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b697dc0a46f058d0649c897aa064839dcc0a2267b5fefb13095bc5ed5b52788. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/GBAJY1074703.
Missa Rigensis: IIc. Quoniam tu solus sanctus
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11e5f53d46773a4f495e71e57376784dca4155751fcb57af1ef8d55bedaf982d. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/GBAJY1074704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b96a2dfebfccd0150611a959aef484ba3ec86752403f2df332f3e204dfde12d. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/GBAJY1074707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x884df94b5f744cbd31e8c118a248da94d6ccbe0687b44ce1d9a03368b1d91d18. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/GBAJY1074710.
A Cycle of Fricis Bārda Poems: I. Vakars 'Evening'
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ff0c7b1c1a3573160f176d7c89c1d1d86a089711e9e688387ddba34b3f976f8. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/GBAJY1074711.
A Cycle of Fricis Bārda Poems: II. Lūgšana 'Prayer'
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3ab5c4c3f2d75846ee1677fbce1efdbabb34d98770e251150b0d1eaeb4abe1e. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/GBAJY1074712.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a691b4e2b771e8489d04fdc8cba0b32d438e58b4c462bad302a3ed06f29babe. 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/GBAJY1074715.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae065fbdbfdbbef8853d11b68367e48396c21b562660d996fbc40693ded2a720. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/GBAJY1074716.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc13b3f79ce6d7e509b5a654bbf33c012143312e09de6911c6b0f942bed2f1a9b. 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/QM6P42212673.
Summer, Sun & Classical (150 entspannte klassische Titel für den Sommer)
Mīlas dziesmas / Songs of Love: I. Tāds gaišums / Such lightness
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcb341a41b5892a144a2c244f91165a1af3cd438af09b2b4e539a0187db5c65a. 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/LVL151902800.
Mīlas dziesmas / Songs of Love: II. Un pēkšņi tāds klusums / And suddenly such silence
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33141ebde6d71a9ec775fcf10e530da3cb681f3ecab49433fc6b0526cf78b420. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/LVL151902799.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9caf62b8e1cea0db44d5c242c18d649d8f4aa646667a2c78b43f708809b59a7. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/LVA891400002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd90cbdb1fcb0bc7ec2b0276d5ac826bdf67760bd3fb3ed81db718cca105bca3. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/LVA891400007.
Other Colours: Latvian Composers for Flute
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x133976068e9d37828809bff65ed7a1188def376e0fe45194f17169700d0ddbe3. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/LVL152100018.
Latvian Impressions - Lettische Impressionen
Northern Sun: Contemporary Latvian Chamber Music for Clarinet