Arisu is the current name of the tap water in Seoul, South Korea. Name Arisu was named in 2004, the former name for Han River in ancient Goguryeo, with the combination of 'Ari,' which means 'big' in
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 0x94df1695512be2e8b3d0ecb79db837aca0d2bb1e6d77739af9a0b28307aa6a74. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d5bb4163-8c59-4209-aa5b-98d380578265.json and https://artists.proofprofile.net/proofs/artist/d5bb4163-8c59-4209-aa5b-98d380578265.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 0xfe528d2001d5162b4e35131d4aa75ada95a23ff277071f3130c639dc157d5a61. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/QZPJ32199075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0109ee5e6e913dcc7cce9182a1a9aa59cefe4043badefdb7f217c1c39a37200. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T13:14:32Z), 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/QZPJ32180891.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a04c8535109a94c3f99c63bcd1f8b448ae2fdf8bdef5c92a04b4c567f210e39. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T13:14:32Z), 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/QZPJ32205993.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0f1941b9c605677498dc406743186f693dd09b5ef8dfc977cf54f8461ee3479. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/USANG2224369.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1e1d445b0050952be96db492bacd4a9ff4f4340a4e79911f77f7c457726f461. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T13:14:32Z), 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/USANG2245030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x925a906462c0665fd17288dcc8d6a34728893cdaf5db646ac80d2fb293ecb47d. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/USANG2250986.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb288bab3bf60da1d8b269c4ffabb04ed1c067574195b9deb835174d9332229bf. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T12:03:04Z), 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/USANG2260612.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5660e6c106fc7eaf41056867a68c1a9194a76bf41c8c7da31acd5ab1825307b. Chain 2 (Bitcoin): anchored in block 958058 (2026-07-14T20:20:34Z), 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/USANG2274536.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c9839aa33242f38ca9a37a08a36ba33ef7726a2404baa4152cfb3e12f6811c5. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/USANG2294553.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe72d5f50def56a3ec01366e7ca9d9b13d03dd16876fd5f9ff250e11258ffeef. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/QZPJ32264893.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72c04aea002bd4b8f13416364d53b5f57a8301e3984e9394d01a233c2d0b708f. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/DEH742511430.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ef428925756a88f62e31246b6bbd10fa64bcfa76684197b9d8b77f3a546908f. Chain 2 (Bitcoin): anchored in block 960199 (2026-07-30T02:30:29Z), 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/QZPJ32167598.