{"copyright_id":"0x0c9e034eecdcbb82daacacba88d314c26d628bc22460af5b0efdd25fdaddb25b","name":"TOKYO HEALTH CLUB","registered_at":"2026-06-12T04:58:36Z","symbol":"NIM0193814","token_address":"0xac6c736a506cdaa7878f5c24bf2febd4067412f7","type":"artist","uuid":"96ab8a89-3cac-47b0-8e7e-7a461ed3d37d"}
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 0x0c9e034eecdcbb82daacacba88d314c26d628bc22460af5b0efdd25fdaddb25b. 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/96ab8a89-3cac-47b0-8e7e-7a461ed3d37d.json and https://artists.proofprofile.net/proofs/artist/96ab8a89-3cac-47b0-8e7e-7a461ed3d37d.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 0xd2ec1a99f7ac926c5b91ce34cfde59c4c1b7a41451f8fb88b05e36d1f47892a4. 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/JPS801404660.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fb1a0e0911ec75f197f5617f1e1568784c50a3daf6fcddc6684f22a8f5bd3f9. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-19T22:55:52Z), 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/JPM591000874.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24e013e5e5e87d2b24b8f1ddd5fb51f88d8997017b3d972719892e3f8c49b790. Chain 2 (Bitcoin): anchored in block 956745 (2026-07-05T05:33:35Z), 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/JPM591000877.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01c7f10a3e59f515d8cbd58727ceb2783130f8bd553ce76182f3515e29467280. 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/JPM591000878.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f2f96d53310c03aec56380c87d0700888a01e0bbdb9c1a6d7dd947b63409b74. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T21:05:52Z), 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/JPM591000960.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e3340c33cdd5ed49df97e415084ca818078e3e15ac6a9856e2188120215e926. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/JPM591000957.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb17e09c3f1686043fcf97a93d85e3b8d5fdb7dec5fecc97f09e7584254fb003. 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/JPM591001042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ed66d5189543f31325dd25fc6a6a2e703ed0f27c6bd3f4dc1665a86325c5bcf. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/JPP301800428.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x548104544630ee501015919bc3e8b62f7007d0af798a26d2c2a63bf0d314cb31. 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/JPS801851648.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a4874106362cf729e4d6fcef18ddcfbb299ab6db6d78d14984836b7e9a53961. 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/JPS802000375.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x492686644796438813c315b295db5bcc29d69798171902d1ceeb43b53b302a47. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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/JPS802000376.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47a899379874b4a3945adc3def1ecb695c58423f31f097068554dbd94b70b51f. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/JPS802000380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x561c133088ad393aadf9c3241f090fba4c81f3e20206500d88bdaa2d262954a8. 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/JPS801943848.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b40fa5b6babb980f80e74d634900db8a05fb9269fcc1349b173b88a06fd5fe9. Chain 2 (Bitcoin): anchored in block 959087 (2026-07-22T02:05:55Z), 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/JPS802351189.