Maria Arnal Dimas (born 8 February 1987) is a Spanish artist, singer and composer based in Barcelona. Her music has received great recognition from Spanish critics. She combines his facet of electroni
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 0x065ab7572fc470fd08d0676bee2f3012e4d92409acec8e4c8772eec9efda7f3f. 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/50d199cb-fc6f-4fdc-835f-3e9350640b97.json and https://artists.proofprofile.net/proofs/artist/50d199cb-fc6f-4fdc-835f-3e9350640b97.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 0xa8aa8bb50fc5e3d9c2bc8df075137e05d2b3c4e5e9cc71a45e7c9d8e1e7403a7. 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/ES70G2000101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec18c1001d346d95ac692bb71766b7607ca953bfa2f7636ba3aa97a381af9fda. 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/ES70G2000102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cf91bfb9d19ff8a927ce23fbba0657874e6dbff89d75764695d8a898ca71198. 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/ES70G2000103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc3b65153b69f0ee26959345ee0ae05350b3d316600ba2e058cb2b00ad73f335. 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/ES70G2000104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf786bf34bf168c4e3f172418f0468f789e68aef1c9b185f32d7285b3b329bc8e. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/ES55G2000038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9aa715f310c5b1e734716e73e605f14e497defdd8f7e18c1e95d2854da552644. 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/ES55G2000039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf471501bdf65307c7cd9d05e02ae67e28a48be4fbe80a1649f4198a28f483025. 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/ES55G2000040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb68e2893ad57636ace948b2bdaf581f36b3c3edb06388e3c91bc5a43a6c8dada. 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/ES55G2000041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b1e92dd84f643cf02d177c7eba4f720f62d1bf0752905fe00c0119c49d3ad02. 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/ES55G2000042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6f441810bcc6352694b7af6dfd2006c85427fc0636605ea4297f6901e387974. 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/ES55G2000043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x096f770aa2a87bd0ee6d360db8771cbbe2c2c38bcbcb21512fc3583abae877fd. 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/ES55G2000044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x371add2fe83a04b92949b4477735fdbbc93bb245fbbc98e257514dd278f11b83. 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/ES55G2000046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa72c3924e593cc6fc177cd8a7654b210fd43bf879191a7ed7256232b2f4893ed. 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/ES55G2000045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc82b7d65c471ab759734d8079a6e5a96fc99311d510e25d475e1e7ab315e50aa. 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/ES55G2000047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x928c4da9a6ce64a7319d1196cbb21286cb41f6584cb0657952196e50b368a314. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/ES55G2000048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x633ded73b43084ecc87cc9dd711c4516a75ee85de5cd5da12b254c7dcb83eef8. 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/ES55G1700008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2372832b14c62ebeace3eaed57fe912a5fec01999a4cb0bcebf312d8031f9900. 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/ES55G1700004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87a5cb1fd734836b5a5c95d76cfa07de5a0d7c326861d98b363aa67fc0881f29. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/ES55G1700001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf47d64f2afd86fa8c6f457299920065a6d3cb869fd33922e4aa871536b506e25. 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/ES55G1700011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46aa8942b2b367fb056bd9ead8382e3aa8fcae07082c7b06589005b1d9324e5a. 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/ES55G1700005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcc7fca076fb25006e824b05560cc3f05d9232a342c7ff315893b2fa753f3022. 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/ES55G1700009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1c27981bae34fc54dbd7589558ea904ee96e7a09341a143ebb1553d4a348db4. 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/ES55G1700006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba60c1d32628107f977daa3c0ccfc9733e1738b9817af3f41360e8088506d229. 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/ES55G1700003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0d27333e98c89b60aebd4f91508c4f06cc4f117745c4bd493f844477bc013d0. 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/ES55G1700002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2ea5c29d18bc50cb1ad99eace5239c13a41496c23669a1a068f5dd8bcdc69e1. 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/QM4TX2462730.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbac5dcc9c5a2d27df366de7792fde31b15f41745825ec9f959c1519211943680. 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/ES5152400115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf471501bdf65307c7cd9d05e02ae67e28a48be4fbe80a1649f4198a28f483025. 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/ES55G2000040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87a5cb1fd734836b5a5c95d76cfa07de5a0d7c326861d98b363aa67fc0881f29. 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/ES55G1700001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1888cf090784a02aca31b38a0bf2305f457c39c264cd351098a408fc081aa212. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/ES55G1600005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8d7c244fbc980c94458c1911b78394f9bc3c881c5d3f84a8abb91f13b364f12. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/ES55G1600006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf387578939b8c23bcfd8dd355cf41c1b6762970c54c299b449ae1204c5b2c6f9. 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/ES55G1600007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x811ff0508da621f68e1e3ffca8579c89ea7c63426c47a90ec84edd9a581adf89. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T20:45:22Z), 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/ES55G1600008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9937799f69cc76bd3db7c298b7a0f0734781edd5fc60177ca19bcbd77a98e39f. 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/ES55G1600009.
Long Time Passing: Kronos Quartet and Friends Celebrate Pete Seeger
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4e5cd40737ce0a29f5daff487d590583eb5b7a0083e7c501954c39a0341eafa. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/USSF12024012.