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 0x5b09261d83c02c481fc7e71e495ec608eab20ef042bbf3f90d11719d2e905575. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0aa69440-9e10-4981-8298-fc0b9e2e9dcc.json and https://artists.proofprofile.net/proofs/artist/0aa69440-9e10-4981-8298-fc0b9e2e9dcc.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 0x0f2ec40264a86863b615c7487346b3b666f1cbddbf11b289b3e87b8220287717. Chain 2 (Bitcoin): anchored in block 957745 (2026-07-12T19:20:20Z), 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/JPB620500251.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6500ea3e888f58e891cc57a5379dc8471453d2ee074cfc2095c12cadff1d79fa. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/JPB620500252.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a9bc0a473535b94c206bb4d519ef77d9b6bec4712a6cbda0155eb389821b314. Chain 2 (Bitcoin): anchored in block 958776 (2026-07-19T20:11:59Z), 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/JPB620500255.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bd1a2fff5bdef97b9497f6b3774799e1503abca26e6bb052d5e1e5cd69f4ad9. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/JPB620500256.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26c764203a7c9f8483cf776cc63370819d44d4bb61ca7fde637fd3e2d1669d71. 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/JPB620500072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x765f5ec1be652b85d3bcfb5e7a878fa85f13fd72415679e9ea68479e4cced01a. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/JPB620500073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21754459345b3eb6835d00571c9439b32eeec75e779d231c8ad6dd43b1091290. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/JPB620500075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c7fdc1568dafdf97f2197182482349701564649f6977c985a4b37ceb6edc905. Chain 2 (Bitcoin): anchored in block 958357 (2026-07-17T03:33:42Z), 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/JPB620500076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x961167e0e0f454077b55c754962d5bc5126bdc537a23c70348bd5f30e7d765f1. Chain 2 (Bitcoin): anchored in block 958711 (2026-07-19T09:26:32Z), 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/JPB620500545.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d0f40ee7a0f840fe571936d22ddd2861bf747a1855304b24e67cc147e8582d5. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T03:44:27Z), 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/JPB620500223.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35c74676e8cc7023364397bc9b82ac35900b80570bd7d3380f8b9b57420d56cb. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/JPB620500225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e08a5a48d5bb1cc002973173b1bc8b376e90c7b72a299a45b1b594454711a05. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/JPU621500033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0ac2b8bd492b885f31adbfb658db10e884d13efec5b6bc58479f251c6b55927. Chain 2 (Bitcoin): anchored in block 958832 (2026-07-20T08:29:58Z), 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/JPU621500035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e08a5a48d5bb1cc002973173b1bc8b376e90c7b72a299a45b1b594454711a05. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/JPU621500033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca1f863e4ae5689af2ae2f9249ed4140d32505f41406dc83eef38a0b71fc085e. 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/JPB622401588.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd0a4079ba2207e8c748c49f821a8292095c532cf46bb6c8680bd0d33a1d7a8a. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T16:09:27Z), 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/JPB622401589.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86c6a19287160bb7a252a4c7f88329445306339f3260e20525556164611bb673. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T17:50:28Z), 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/JPB622401590.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e873b250c38969f62d93de44dbf16bcca8b003d0a953b84b5dd8cd317605a1f. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/JPB622401591.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe36521da6b3c8f5aa2387d97c3de80ab96ce8316a002e555da07470b2ae27a0a. 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/JPB622401592.
奥野真哉(ソウル・フラワー・ユニオン)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e5b445fc20d0083855b93f389f51a739ff68d4b31d8497d719a41b2e224cfe2. 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/JPTE01906750.