Marika Takeuchi (born 14 March 1987 in Kawasaki) is a Japanese contemporary composer, film composer, music producer and pianist. Education Takeuchi is a graduate of Berklee College of Music in Boston
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x1beebfe49a2362f516373db83ea2e9a009966c23d1d1c682315378d7be2a1190. 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/06d53c4b-1ef9-485d-9f34-e6998e67f0e8.json and https://artists.proofprofile.net/proofs/artist/06d53c4b-1ef9-485d-9f34-e6998e67f0e8.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 → block OTSBitcoinBlock must exist at that height 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 0xd656952634c116dee75b52b90a25fe544baca07c13c996eb9064d0e012fc9d45. 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/USHM81118069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2545e7987e8edec9def8ae81e59dea5cee13a9cd1ebff5c0bb286cbaf0689eb. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/USFYP1400420.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf956a0e9fe59c8a59bef77bd9fa69cca4c27e22ef57e1c0373f4d9354f4fd1c8. Chain 2 (Bitcoin): anchored in block 958363 (2026-07-17T04:34:46Z), 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/USFYP1400430.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9245437cd6fb2fafa98036d1b73974beaab362094c8acbceeb67487d968fbb72. 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/USFYP1400440.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc793e95acdd2f88cc335a22761d131c8edd22af15341db82a2cfde4b34433f1b. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/USFYP1400450.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07369e39ed8094a4b55f17ef0a5867b9d857a046234d6b0c9d1f6feb5b5027d9. 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/USFYP1400460.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f63376a63a4fccd83b66e4cfba3475908a1b1e7de9414b5337eacd0065849d1. 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/USFYP1400470.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80e0176cee9d9124957072c8bef13a5622bb466cde2f8a5ef024ae2f62f5626a. 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/USFYP1400480.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd641b51a4ae650a11fc500250b430330546be782677248b3a6d34d4423682ca8. 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/USFYP1400490.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcaf50322f4761c3c29f0a0d598a58a53f0b8b9271078f55c547d6aef4c0ec6e0. 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/USFYP1400500.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48af6bb7475f2eb870a4f197e871710ab114bc8fc7fe1e5f38f54ff91c9de874. 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/USFYP1400510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ed0cc7c02bbb466e6f6d373d310c416f870418d46c1458b4c1e42d5d8d2f76a. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/QMAAK1614719.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa79f18b0ce9eea9052b3d876651a175e410b6e8a56d522798daf4a27146fcb2. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/GBWMY1850470.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbad5748264b4748e4e3bb4bda355db062a875e1c36f672e413e97380fa275438. Chain 2 (Bitcoin): anchored in block 958504 (2026-07-18T05:41:32Z), 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/GBWMY1850480.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99466bbd843bac557574bb88cfb14f2ae334d40fc647527dfa6967c203ada270. 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/GBWMY1850500.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c177c1ef270830d6a3359f98e04fa2a411190797aeb0c7f0a5ea801b5e33cc3. Chain 2 (Bitcoin): anchored in block 958117 (2026-07-15T10:21:59Z), 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/GBWMY1850510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24fa5676a880a9799b22e06227a84c9689dcda979ac4ef72b61bc90601e1972a. Chain 2 (Bitcoin): anchored in block 957801 (2026-07-13T04:17:08Z), 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/GBWMY1850420.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4555c808c1e2ee0a2eeab641f756a1e236a80ad2095fadcd4b9710550cf23956. Chain 2 (Bitcoin): anchored in block 958355 (2026-07-17T03:11:50Z), 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/GBWMY1850530.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x468d936eddec345f0cd5128bf0adc85eb8ca920643f61ce5d0eb73e0dc96e20f. 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/GBWMY1850550.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe648147459c79110e33fd55b24470d479faaff59ed42cffd291925880ab6b2c3. Chain 2 (Bitcoin): anchored in block 957874 (2026-07-13T15:43:57Z), 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/GBWMY1950030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf24d1c5ae042f231239274cc0280ed0ecec8ae0887b65c55638fd60e5b26ea98. Chain 2 (Bitcoin): anchored in block 958415 (2026-07-17T12:50:13Z), 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/GBWMY1950500.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x120c2b63a1a8a18ab9d931523d730f830f690f6c03864fe0ccf9702f15a59a5f. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/GBWMY1950490.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed57bd1504307995773ec0b027bb7cd798c2179215c0ecff5d07acc33cd101be. 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/QM24S2000072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c5b6a921851546239c00d290fa0d69a6033c3a2c57a7e15ab8f8aba57ce9112. Chain 2 (Bitcoin): anchored in block 957876 (2026-07-13T16:00:32Z), 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/ITK252130079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24d5afc46db06e83ec097e2b39e839447e13cd8af7d40f1d6a6bf9f26b11685a. Chain 2 (Bitcoin): anchored in block 958622 (2026-07-18T22:58:55Z), 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/GBFPN2158607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a16d4b236c3a14ea3981e1bf5e5bec986b507ce054bdb0be24eddb6e8166754. 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/GBFPN2158611.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0bea2237a3d107363c921ac44f88afeb54045472d4f88690970ed95f84b1b8a. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-16T01:46:28Z), 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/GBWMY2251650.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35896a3ec816cd93b860ff786b99ed11a2db60bba7eda36ccef0e619f1fccf30. 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/GBWMY2251690.
Aurora's Journey and the Pitiful Lackey (Original Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0febd3bbd88d510e1700163acfff5f8f051f84a5cc147a74a8712b7ef51d5a72. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/GBWMY2400020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2bd377c7108d782733e82945b2dba251c6964663b93db4158bd5a236df4392d. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T11:34:57Z), 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/GBWMY2400510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e8b27dae51a942f9918fb5e3ab8fc44650b2c8470ba30293a015ef78fbc3501. 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/GBWMY2400520.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabe0d163ebf62300cabb47a278ccdde299376999a8145fed327574cdfff4eeb4. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/GBWMY2400540.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1305b1ac863a5b1a58ecb13af8101208d067bd64899707a6b04eab3ef49b226f. 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/GBWMY2400550.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bb2f9a47996a55f0ddf2ce2d65cadb8e3a0eb80748df367e52c77915c6e928a. 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/GBWMY2400570.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6de908418fa131d03ae7f2664bbbb28598526e5891df899f9af89a1141180827. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T17:33:43Z), 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/GBWMY2401410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x163d0f393f275f258ffe4cfa1856b4870ac270aa7a2514df63ddaad0a01e8f8e. 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/GBWMY2401920.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x559bcdfd21aa00268d6cd2251c474a7dc44741b9dac83bb4955232f6b3ee54af. 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/GBWMY2500710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86b98d1e27e29b39e4e9de7de5d6cf4ab424c21e9da06bdcdf7fbfb71d88c375. 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/GBWMY1950370.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x795eedb4f86f519b2a1233f1cb5a2a1a209f847151683bdff35e67d63f79308d. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/GBWMY2050280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff15237e1118cdd37a04cb030ef765e861307ae08c2a8fa4c9b9fcfa66d48ec9. 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/GBWMY2050770.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4fd550647ea354203c2ec2ff243800a44383b64b1e34553424ef7104b061fed. 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/QMAAK1614710.