Masami Tsuchiya may refer to: Masami Tsuchiya (Aum Shinrikyo) (1965–2018), member of the Aum Shinrikyo movement Masami Tsuchiya (singer) (born 1952), singer and guitarist
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 0xf4a355432a89c51d14deb576a49d52241e582a2e4bf16addcce78b9984994558. 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/4cdbfdd4-325b-4890-af9c-a43ea567c170.json and https://artists.proofprofile.net/proofs/artist/4cdbfdd4-325b-4890-af9c-a43ea567c170.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 0x66abce9171b5c526813d2ffea65b7a5bf255b0b3c94d9b2e1f2572405617a6a7. 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/JPES08501210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a4cc237d57dbe9f2a14d3342f8c7ba1855ad32e6ebe1c37c9ead636dae6ec74. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), 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/JPES08501220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91cda2fd7d29e3a2db5dffab6ad8e7a1b776172764cf916fead2d4bd6de3b1eb. Chain 2 (Bitcoin): anchored in block 960429 (2026-07-31T16:07:24Z), 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/JPES08501230.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6df7099a41d195909458f98bad1cba44ef76d980f93ff5c99489f0c2f051efb1. 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/JPES08501240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26c3d1e75b084420154031a0d2302324c35796129742a171f965271ed2d7f068. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/JPES08501250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x417d75fae782c73743410059d5db877f0ce81636320ea2e228ba3bcc06e3e117. 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/JPES08501260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19eb12116f16fe2ddd3a7db3bcbc9e0c4c45f2b4e7fae5c21f81d1c8f64b4a8c. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/JPES08501270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a6f3dba258bfc1f287fe0a2732fca5fa31de052f4ff5fc54a29f1647bf07678. Chain 2 (Bitcoin): anchored in block 960497 (2026-08-01T02:22:04Z), 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/JPES08501280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x200190fad465a7d7fe25f220ae2acd2da5a4d4d73ffca55c1c1b23b13177aed0. 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/JPES08501290.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4095e22b8fe322579946f79efc28af3dd116afd822cafbf920c50e85d3ed9059. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/JPES08505120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb32708320003cee86ffac119e701149e8d0c9853318af4daf5c6b78693b83a2f. 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/JPES08200760.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2632b15b019eca92fce5fd50af048be343bbeff3bae7f8fc38e6460eb8056515. 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/JPES08200770.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7684c02313f66d196dde365bfe1b750773d02b169952dee4abaf6c7c7686c4a. Chain 2 (Bitcoin): anchored in block 960294 (2026-07-30T18:46:00Z), 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/JPES08200780.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bcec9d08650596d28f73e483f04995aff31f5e6759447a5ed67187b49920f14. 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/JPES08200790.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7d19c37a29af5b45bcec5955aad7e6bedbc1e48c5c3a4e6f855d7cd9d0c8f7c. Chain 2 (Bitcoin): anchored in block 960212 (2026-07-30T05:43:45Z), 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/JPES08200800.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb61c7378f1a3500119ac10d794a45deb86e3b40d5fef1d06012602b5cf46fea. 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/JPES08200810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4479fe061a7ede065d779b7c52b2786f6f95460e2512acc9cc19383c9ddf5ea2. 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/JPES08200820.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6603c246f055c37ccb83bd9e7514d6eda798937c9f28c7f59de8dafd62d000d3. Chain 2 (Bitcoin): anchored in block 960309 (2026-07-30T20:35:49Z), 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/JPES08200830.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbb5d487cc51a778f843f1b67f506f2c59239823f78fcc8abb4b1caf8332d619. 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/JPES08200840.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f7c5299a44d29ebdb134a0109454d31ab2c68e736209075c250e3eb2a63c94b. Chain 2 (Bitcoin): anchored in block 960155 (2026-07-29T22:13:32Z), 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/JPES08200850.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d296eff4529eb49372013c88a976513265c627c655efa3de6fe6742361615b0. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/JPES08400990.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cc7721302d6c9a85ff069a649b5da4868764abfbc1c552f941a448d32e916a2. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/JPES08704230.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bb5aa5c23762d730e9b66652572f4720fc855cceecb92f493b6296bb9180c95. 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/JPBV09601042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5978eb5cc434ec28e70a52a2cc2a44c33c14be257e4bb47528de26e1ed385339. 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/JPES08301540.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc190a92399258797bbbd38a7ee0edf416d0b18f7b65bb0c9b853d3c78971b02e. 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/JPES08301550.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90c941ed6b7ca12271a892a5e12749ab5bfe810318d39e8f62e8660e34c69f39. 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/JPES08301560.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cb5c48eedfae71faf1c3b012d80ee27298bfa1900f39988ade682e975fba7ea. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/JPES08301570.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b24dc7d2d6b66ddff884a99db68c7fb3f57be267e879438f6f920269df632f9. 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/JPES08301580.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80e208a6b133e9978d594a3bc15c568fa3e969e1cd8eba95bf8e23ef302d3fa8. Chain 2 (Bitcoin): anchored in block 960247 (2026-07-30T10:42:33Z), 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/JPES08301590.
ドリーム・オブ・ザ・ジプシーズ
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0c4cb5af37d38a1e4e9d4c74a8ca8424fc68ba7be5503dcb820ac748ab3ddcd. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/JPES08301600.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0f0e6ac645ad04e45b77866ddbb6eea85ca786218c1e040aac4b182f1de7c44. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/JPES08301610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x504f2cc83b94eb01fd7acfd7f168e9823ad882a8501dbbaad232f7d1b99070b8. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/JPES08301620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x083b73bb9d556c81ffb129f2b717bc3912f5393c5612b0e061470ad9b0a34368. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/JPES08301630.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe694b61044f13d5a93089035c09b9fa9f370b6b72c8c8a622c1328fa10dc47a5. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/JPES08302350.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7c46521ceb7437363429e75552ce431e5c3b7f5b0b22a30d580fad1a06cd64a. Chain 2 (Bitcoin): anchored in block 960459 (2026-07-31T20:22:46Z), 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/JPES08302360.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde61f6501326e2a029787811271ae731bfef4a2315bb630b576417532237e5cd. 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/JPES08302370.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd29c399315ae2b24524040f7d57738ba6e0cf23aa951d93836d7f9f0ee81ff2a. 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/JPES08302380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3aecd710ffaf9d1309320c52ee547e45f157c7a177e218e7c1525a30f2e55352. 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/JPES08302390.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9be9c43321db609bc51985663a324b76c0f2c95a8f59d05390ceb222ce49920e. 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/JPES08302400.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc58377ece5b0316de5fc280c7d1da26e64305a11abb641bd609ad419b33b6446. 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/JPES08400450.