Reo Okuma (born November 17, 1997), better known by his stage name OZworld, formerly known as R'kuma, is a Japanese rapper from Kadena, Okinawa Prefecture. Early life Born to parents who divorced s
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 0xbcc9d9322a57b41e1ec5651b227043e9798707660bce3f039a87ddfb009d1d7f. 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/8d53001d-f6b0-4d46-9e7b-33e3cd06863b.json and https://artists.proofprofile.net/proofs/artist/8d53001d-f6b0-4d46-9e7b-33e3cd06863b.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 0x3a6386413a6e7eea41d44831d1067a154a7facd94486ce0435063f56326087e1. Chain 2 (Bitcoin): anchored in block 958612 (2026-07-18T21:29:37Z), 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/JPX601900001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcf338945b6b216eed5365e3d7ffc2843d5a683a9370badf5603456129c52eed. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T11:00:15Z), 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/JPX601900002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26d59e1bc0710481134570c6539af8d62f091a38d04d75764c1a34c0c42d6506. Chain 2 (Bitcoin): anchored in block 958613 (2026-07-18T21:35:09Z), 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/JPX601900005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42e0b87cfd1b31f9d3bf017a57c103f4b21d94e260335e7f7ae20200163fc13b. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/JPX601900006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a226dd6cd05f927ed127b64d2c7ab493c3f865828b1bd38c4bf3a4c030a7a41. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/JPX601900009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8735ee61e5b9546425c7d6614d569aab452d59dc7099a432991ba33905f4e193. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T09:40:55Z), 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/TCJPM2012721.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0586164a974e238ecde8962471cacee0ae4fda785afd45b0a4816b7905c56df. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/TCJPM2079018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6e1692405554d057dfc8601e2b47ac0f5ec1ff770bf07213a49e06b3daf2143. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T17:46:54Z), 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/TCJPM2078905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd02ab10678717c14778826e8eb8725be437311c90989def033b6051a07b5dd0d. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T03:07:11Z), 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/TCJPM2078964.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a8318111a94f93aaf0bcfa94966377f54be40aa64fee3f20b853005d7a91d96. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/TCJPM2078970.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41c6ae1e79eff6faf00daba7fcebd6d77933f63d6ecc060564ea10489f08d8be. 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/TCJPM2078977.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d5a18440fa92e685cf74bc5252da7cb7e9988d945062e2787cac828bb6baba5. 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/TCJPM2078989.
High up (feat. Grace Aimi & Marie Yasuko)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3418fd9340f92c07ee322292908c2e64a29b217989fc094808b9c271c76afd95. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T23:15:55Z), 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/TCJPM2078991.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c14fb213d27118ccd544330a1bdb84b454ed6788d8f9e33f80cb0b97b1f9026. 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/TCJPM2078993.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ccafc9405facfff74c30df25ce6eb4d90e9867594e2f6b909aab6fe3355c6bf. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T12:52:01Z), 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/TCJPM2078984.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaef9ad2ad4e6c807693469442586de58d3c6647dda0bf312bb2e78eb52e3ae20. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T13:03:21Z), 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/TCJPQ2135869.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7a816fb1802784a9392d92a6d0752a06f9763283132cf3e6a5619a9b89db2ec. 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/JPX602200003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56ee691f75f35f7b827fa7960ca114fd2578038fc2d31291c59dc2114b515a24. Chain 2 (Bitcoin): anchored in block 958185 (2026-07-15T18:19:04Z), 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/JPX602300014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x121e545b28a8328ffa87e33e1494874dbabff6bb3cef76feeb0f982ce61418bd. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T08:44:44Z), 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/JPX602300018.
META EDEN (feat. PEANUTS KUN & PIEC3 POPPO)
Hey Siri, Hifumiyoi (feat. KUJA & Grace Aimi)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5e184ebf2be8a6d8c47199aff4e49785cc078cb93c1b5cd3df9982adbaf2e31. Chain 2 (Bitcoin): anchored in block 958349 (2026-07-17T04:51:03Z), 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/JPX602300034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc3ed4c809c1457e7871eac625e672d459c92ce71bad00dae6daf97b488826a3. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-16T00:38:48Z), 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/JPX602300035.
META EDEN (feat. Peanuts Kun & PIEC3 POPPO)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x121e545b28a8328ffa87e33e1494874dbabff6bb3cef76feeb0f982ce61418bd. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/JPX602300018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79d49a60e17d46fc97edd7fd2b7d5ee894a23871e6db85d1fe2d995d993094a3. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/JPX602300037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56ee691f75f35f7b827fa7960ca114fd2578038fc2d31291c59dc2114b515a24. Chain 2 (Bitcoin): anchored in block 958631 (2026-07-19T00:50:09Z), 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/JPX602300014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66cad296da2264a37c4b08d3e2e75cf4845aa699859502d5d5cfa7766f102997. 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/JPX602100029.
Gear 5 (feat. MIYACHI & Jinmenusagi) [Remix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73d866d9310db2d43e7c90e9e990b7e1e1245e93afc2218544c723bff78064fa. Chain 2 (Bitcoin): anchored in block 956711 (2026-07-04T22:48:52Z), 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/JPX602400004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x173ec53abf8c55f9cf5bdf1ef595264cd50491e48070013d1f4cf12cfc85d65f. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/JPX602400006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6430befbf8f3e5bbebad991e189c621e90f368dfd3f92fe25d8549b8a51ff64. 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/JPH492516000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a7ea3a7f5f6119632e9f2fac6d7608cd6abc393f831e256d988cdd1b09d28e0. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/QT66J2502562.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9c9737b1c9be57384eaf37c7ddf153fc0f4305201aa7402634d00fbac481d30. 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/TCJPU2393288.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4711d3966c336a1eaeb55e6518146d02da37c98ab1c7e981e20a61c9c9f1a85d. 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/JPWP02400207.
Dream Melody feat. VIGORMAN, OZworld a.k.a. R'kuma
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55db9363ddc58a520946740f035953f7bdf7dc22add5ace7cf2d9ead30ad34fc. 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/JPX601900024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65e8c9840ef013999653968fd2785936d183fe622c2c83511b7212c50b01f784. 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/TCJPU2393276.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee85322af28a10f9e6de5a64195cf3c8b8e068b864f8f5f0089fa8457a187705. 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/JPX602100007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b6b1ab1014e5fdf9f1c05f5da66d56c6fcfe6ab7a7d0212a4f80bd172d89a85. 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/JPY201907440.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c8019fdd24875c3ca02e5eb8b27cf463691e8b1ceb9efb2b020c0d3bbb1fa39. 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/TCJPK1908691.
CONTROL (feat. Young Dalu, OZworld & Shurkn Pap)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68fa2acb01ee34daedc62b7199d597db91b706013a50020013762baf90211d28. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/TCJPI1823057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4711d3966c336a1eaeb55e6518146d02da37c98ab1c7e981e20a61c9c9f1a85d. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/JPWP02400207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c105a12b4ac4be5af873f8fa61a8cb00df6e5ce4b2c70674dc70aed474536a1. 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/JPY201907496.
The Matrix (feat. OZworld, MIYACHI & SHAKA BOSE)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcf4af1746948c90ad1cc98973b10f99100098089485529dea04f8bf863766fb. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/TCJPN2021866.
WORLD PEACE (feat. OZworld & JP THE WAVY)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7945dbf546272549664a2a9b341151875010713c568a3ed7359d4a39637087e6. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/JPJ902009080.
Chain on my neck (feat. ¥ellow bucks & OZworld)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfe96043bf430e61e7eb26c47e2b38a57ff98411fdb43dadf38ec43130a6f4f9. 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/TCJPN2021399.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcca441d4d82fb9079102daf67be0f368ffd2873e3c3a7773fb47a846341a2b4. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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/TCJPQ2178754.
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 0x8bdf8ef87f4bcc61a3c9bb9963d1f8cf30b079f8de8d67ab24f6aaa3b0d5890a. Chain 2 (Bitcoin): anchored in block 960099 (2026-07-29T11:30:20Z), 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/TCJPW2324038.