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 0xc7a372823a4a757b2397182a404b141f19cdbfcdf0d8e31cd53b9ca3a0e6d4f6. 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/e016a8fe-3d77-4846-a2e6-d885d1c271f6.json and https://artists.proofprofile.net/proofs/artist/e016a8fe-3d77-4846-a2e6-d885d1c271f6.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 0x88c3c208c0e815914341f463b85234ad6cc3eaa5b8a7b281a22165afc6f5034b. 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/JPX401700108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6321ef3f16d920331d58b7e5519f702463ae2f716b1b09ed8be656614676e3ff. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/JPX401700110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2df452f062f16c476ab7e16f452805cb30e8db66375443c8c538f79e622bd619. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-15T23:24:33Z), 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/JPX401800089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0afae06cbd8babf93fd348c9cd39113a63435d79d2a76c566e3565630da65d93. 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/JPX401800090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2df452f062f16c476ab7e16f452805cb30e8db66375443c8c538f79e622bd619. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), 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/JPX401800089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63ba4267a1a7048288d6d2cd58692ff7e324604bb58a42c0045777a111f7a94e. Chain 2 (Bitcoin): anchored in block 957705 (2026-07-12T12:50:42Z), 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/JPX401800093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd2328fd83e429d0c1c1c62753d1fd54bfda6285fd4bbad50f92c14496e2f567. Chain 2 (Bitcoin): anchored in block 958346 (2026-07-17T01:47:42Z), 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/JPX401800091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11e39a54701e79137f0c4ccef5ff50437464cbec51270d27ab5f516ed7105b6e. 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/JPX401800094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8a20d17bb9ef0bb8882f1b2032d1e4ed7134752e995fce0844f6225c3a33625. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), 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/JPX402200021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ea6e798303904680d3991da4e8f4237aa3dc4d41f790a136d4ea57a7287263b. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/JPX402400002.
生まれてきたことに感謝しなさい！
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa51904aca99f2206dc4fe522da24a8a405c8f5341f345d2bbafe8af170d3b040. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/TCJPC2426796.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f1e9553e3a4606abf2504f3fefc7e6ae9520697eeb02d5383a1b807685d783b. 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/JPPC02413688.
ミュージックレイン・オールスターMIX "バイブル" mixed by DJ和
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c416832aa288c3a9b593b9ab1ee148def028e0fe29fdc35a2b0e31080541afd. 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/JPX402100129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d610ee105d4fdd10caf0874f07873c4a092f8bc1a8caf56d0f09aa1240e76b7. 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/JPX401700005.