Ringwanderung is a Japanese girl group formed in 2019. They released their debut album, Synchronism, in August 2021. History On November 23, 2019, Ringwanderung was formed by Sun Colorz with a six-
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 0xf8c4ebb8520d5b0f01e539c8c83568cfffc29017667858ed0a8322f94249601b. 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/8d03a3af-0394-45a7-a9b2-04d6cccb9c51.json and https://artists.proofprofile.net/proofs/artist/8d03a3af-0394-45a7-a9b2-04d6cccb9c51.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 0x17e18757c92df11227dd00d675f6ea713828a38b228651b3d56d69472f5c62e1. 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/JPB622401138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4308432b2229fb56a725e59349f8c4c1e3182b67cb174a5b84f706e7de0df099. 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/JPB622401278.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85a44ef8608f200ef1d8c9c00836ed73af474bc8de699471edcf963eed9760ec. 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/JPB622401279.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbebbc1076b7c63d1f02b980b71bf6b6f84bfbf6edc8360f127527a6a5c6e8628. 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/JPB622401280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfab7a247504b6cebcf7894c5da61526da0a42c905e839d5f5b4ff3183e5be2f3. 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/JPB622401281.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e77e85226da0cbda1425265bf9ab4d43a1783e94634cddea5efe596144a9d5c. 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/JPB622400501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe62c2396fb08de6aa5522e877cfc963bff35660a726646129fe3d5d6ce0c43d4. 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/JPB622401284.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd24289ec6c693ec6431ee770d9a9caf0f16995fafd0a210849e25af69e970b8e. 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/JPB622401285.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91617fc88f984905fb4fb0430229554744e7d59bd7bc9aec51d815dce1a70759. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T19:57:35Z), 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/JPB622401283.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72e22b78fbfd693068fca0f4e28415606ef1a0e8553e2080b0775182ca52d918. 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/JPB622201353.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a4114e34d1462fb604389753d71b16a8eb1ba9423287993953b923be3c8acbb. 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/JPB622201354.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda81c08dbbd116059da02336dbd4b78b69f39e0a57f103df87e284f05df8287b. 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/JPB622201355.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0186d0b995183bcbe8742010c936c4eed93cae57f2f49b639273c1c041d05849. 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/JPB622201357.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf64b8a4177f89987faebb925aea349c3399f2d6c8bc743b0d552f3bf9d0af321. 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/JPB622201358.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x845a730d60b5ca79109e3ddd2cd8dd42c400257292f088f298b7baff145bd049. 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/JPB622201360.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36d5c7e0576709eee0ecc27034a34bc3361acf2ed22434b87ccaa7b5131fe405. 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/JPB622201361.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97c0a0847e175b6c086cbe06807b673eb06b3bda3d6f04121b31434c604fc37d. 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/JPB622201362.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x849eec574ab5448ca3b236d198e59a1803fc2dc17aa367a845aa16068b8b0418. 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/JPB622201363.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x962c0f5d0d121eb8563cdb87b4bc891aa9cb131e2c57dd966f198274901a7e92. 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/JPB622201364.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ede47c5bc27749a68b4b2951874c08a9534ac63bf92a392f370fe3c4c1663c5. 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/TCJPP2120018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17e18757c92df11227dd00d675f6ea713828a38b228651b3d56d69472f5c62e1. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/JPB622401138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e77e85226da0cbda1425265bf9ab4d43a1783e94634cddea5efe596144a9d5c. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/JPB622400501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d446ad006b217ceb0a8ad6cf1d99e47a12eb71840503d9e89163462a2cbe12e. Chain 2 (Bitcoin): anchored in block 957048 (2026-07-07T14:18:56Z), 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/JPB622203198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d4e95ebdf5fd8d94d589b65c4933a28124c0154ed0eadd34105f36bc16a06e4. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/JPB622202130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc614091e2d01df29fd548e83450ffbf3976c48c4cacd3258c34bdf8953c2643. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/JPB622202124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf03132cb63e4789244c388085cc18be86af4f209e2259811953a7be776a54b94. 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/JPB622202099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f6144f3025d5729171e34c41ac0e487c983fe97359e9136099adc0ec02c101f. 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/JPB622200478.