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 0x2f5cab3bed336c9ea1303cddc04d464ebe7a7794764c24b034fa1b7b596a1d98. 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/e1b6cdb6-d3f1-45b0-a3af-bef31a712348.json and https://artists.proofprofile.net/proofs/artist/e1b6cdb6-d3f1-45b0-a3af-bef31a712348.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 0x288eb2322124a189c2ee38e53513795047180866ddba8fcce854c570a51532b5. 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/JPB600772101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe79abdd160a8e0da3a878608368b7165346d23334f19f37bbf1d1e3f2bf6c9e3. Chain 2 (Bitcoin): anchored in block 957067 (2026-07-07T16:54:37Z), 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/JPB600853603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e155f2329407f3842f6ff2ce8c01dfe701f9ad084885c6ca06a9b476c388633. 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/JPB600772109.
Climax Jump DEN-LINER form - モモウラキンリュウ セリフ Ver.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ef055570a148ae20bdcb5b2c585bcba6b2b48ff347fc7bef54575240246d48e. 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/JPB600772102.
Climax Jump DEN-LINER form - モモタロス セリフ Ver.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bf869c371600b88ebb4a43eb970af43f4d34490404ee1ac7551083e7b991e4b. Chain 2 (Bitcoin): anchored in block 960250 (2026-07-30T11:13:28Z), 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/JPB600772103.
Climax Jump DEN-LINER form - ウラタロス セリフ Ver.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c636dd7455e2503e4bde97d5c6cfd2f21d1d6f1b88d36d1fcb6ff604e70f12f. Chain 2 (Bitcoin): anchored in block 960157 (2026-07-29T22:12:10Z), 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/JPB600772104.
Climax Jump DEN-LINER form - キンタロス セリフ Ver.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77a01b3f939b3dbcb7fb916eb32ac8eb7b1edb8e6b6793324addf4bb334b814a. Chain 2 (Bitcoin): anchored in block 960247 (2026-07-30T10:42:33Z), 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/JPB600772105.
Climax Jump DEN-LINER form - リュウタロス セリフVer.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x130a917aa7cf88e3a08fc73da8f85ed912de0c55977fd45b82b28a97d92aa8a5. Chain 2 (Bitcoin): anchored in block 960268 (2026-07-30T14:53:07Z), 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/JPB600772106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe1a336913396c25d4286fc9c2d65b22427002ad44cf1af7bdb9fa593656ddb7. Chain 2 (Bitcoin): anchored in block 960231 (2026-07-30T08:33:28Z), 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/JPB600853607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1673930e05110e40c6b32165ccdefe883681da76315a9d41ba371993b6fbfe28. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/JPB600739901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b9a2b9cc96582d57367f277b962c3c84166b285b6de43fc6ba7c0b8967e06f3. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/JPB600822301.
いーじゃん! いーじゃん! スゲーじゃん!?
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe79abdd160a8e0da3a878608368b7165346d23334f19f37bbf1d1e3f2bf6c9e3. 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/JPB600853603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe1a336913396c25d4286fc9c2d65b22427002ad44cf1af7bdb9fa593656ddb7. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/JPB600853607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ef055570a148ae20bdcb5b2c585bcba6b2b48ff347fc7bef54575240246d48e. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/JPB600772102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bf869c371600b88ebb4a43eb970af43f4d34490404ee1ac7551083e7b991e4b. Chain 2 (Bitcoin): anchored in block 960317 (2026-07-30T21:35:24Z), 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/JPB600772103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c636dd7455e2503e4bde97d5c6cfd2f21d1d6f1b88d36d1fcb6ff604e70f12f. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/JPB600772104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77a01b3f939b3dbcb7fb916eb32ac8eb7b1edb8e6b6793324addf4bb334b814a. Chain 2 (Bitcoin): anchored in block 960384 (2026-07-31T09:54:03Z), 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/JPB600772105.