1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0xe61290a8fc266486cc51f6131b6d30b007d74c5507122a6ea7389233723e1d33. Chain 2 (Bitcoin): anchored in block 953885 (2026-06-16T04:12:47Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0bedb119-2673-458d-8d69-a27d2a3bed0e.json and https://artists.proofprofile.net/proofs/artist/0bedb119-2673-458d-8d69-a27d2a3bed0e.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 → block OTSBitcoinBlock must exist at that height 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 0xe594e1c2a572f032f7f527f43eec214507506f0d88ec75ca2e9aa18fa4eafe08. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/JPTO09322780.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8071e8b592e13da0497105d9d6ade2b29af68cecaafea8e2aa236c3fc0d6b1e. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/JPTO09322790.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcf7fab9cdb5761caa10ad7ca8843e4627ef68135de5c609a6067a3cc3bbf524. 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/JPTO09322820.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7b94828b4c29cac18b61cc6b686888bca8f0c0a0aee2c8d205b74701cca491e. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/JPTO09322830.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd20d13ed0e8164cc8cf27ef41005cdc6016a8659d05c810fcfceb62058bbd4d9. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/JPTO09239640.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x971ac2396230e56d549a39a99931dc54533713695854b1c87ded4a9bc6cb05b1. Chain 2 (Bitcoin): anchored in block 957304 (2026-07-09T12:19:34Z), 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/JPTO09239690.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc19ed9b5e2ccb57f53f9767281be5d2bcfd34104539bb519f051a67745ac267c. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/JPTO09239700.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b344713d3947978c1e5c1b7016e6ea361a249b02608e556abbc4a97a6c40823. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/JPTO09239710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88dcff3e05b6ff054d7488ed99c4ec350a6d95bed3bdd279eb4d854b9ace9c02. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/JPTO09311900.
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3916ca4c79f907cdc07cb27575f86f24f62ba95835c088553ce2ad0523f77e55. 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/JPPO08200310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91ed51e73750edcdfe6350bc7ba1554fb82f2d7b234cde6170da82e7b58f3bb4. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/JPTO09322740.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0105286359075aef0b213e8ba09cb2dbaa8e6d48e62f6c15cf740d5676474bba. 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/JPTO08721590.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed2e7e08804f4768a0987119bc6c8215160cc08d48db9a0ba31978b79bfb6656. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/JPTO08721600.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd12f04f518b0206ab117e48403693696616afd9dc7067c3ea689f0cf3a2039dd. 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/JPTO09409940.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae99bcbbb5b01506d72117e0e342e50cd8b25047b95e5646a5c90e6163d34743. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/JPZ921604599.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57b32712dbf9da19947f4401b4bb100d620b545b04eea1b18849a1f121483268. 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/JPTO08722110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccc67e67b7403fa4c663d5cc5be4ad6e27d3e3c828e7bcccd403bbf74e2eb4c7. 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/JPPO00427570.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1246d6a07ae4cbbe411a0e70c7a9ae955d287343e86417656c8ae134688d7972. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/JPTO09108310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x226bc3a73efb90b61796bbd79492ea2ee005756db9abff6a96e42107d5468e25. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/JPTO09108320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82a8c7c89ce08bbe9d5ce2d5352c7362dc6411348d6cd12fac48e2c89341ddda. 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/JPTO09141530.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85d5bd85b395660843f8d0f96eadcd3932d7e6e5b4076d06de16f45cd7ebc760. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/JPPO02001444.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6a17ffc280e68d7a7b270530842a183600ebfc35822a96510465be14b9bc58f. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/JPTO09141500.
Imawano Kiyoshiro Little Screaming Revue
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6430d668cd9038e1b7487b148737d335f99fb67b2ac1cb87e3aafd205c337608. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/JPPO00320140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa67ff8b35abb86be90704addea0f05af4bda0efad36fac93a8944bb078f2e92a. 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/JPPO09806470.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e5db390b22f3b459f82d0c446f969e0e25ce9ba281157175b9dc4f51c162487. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/JPPO09806490.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x688209a92bad3f01814c5e464cf4a3f56616128c33c25a29013463d4a5f7554b. 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/JPPO00945400.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6944af42fec7cdc6638966788bc38016583cad55c4f2fc961edee6c5b4a4877. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/JPPO00945410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e696dc674e8180fb5750d4a734dbd42ebf559eff26e955547beee8bc18329d8. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/JPTO09505460.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9689f859ac34e998e7aba0f95a1a97a8ab2546541164646d043df43532267644. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/JPPO09806480.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3edfbcb9365a89f4227e6d0e793fd7a150c6dfe0c5b3881129fa821ba8a0a72e. 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/JPTO09141510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36fc4afac1a5daba41624484af27338222ef7fb641b1dc0e55636c6832ba49e1. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/JPPO00501740.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d6120c7b164ba6203e04ddb65ca81d03126821b0a50fc07f76ecf1da0bbcadc. Chain 2 (Bitcoin): anchored in block 957820 (2026-07-13T07:54:01Z), 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/JPTO09505530.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf4d432cb29bf58c59dd59b1cdec47efdfd78af251554dce2156e763dbc94631. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/JPPO00628010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6eb3b5a15dd9a89bdb6ba51bc272d49dff61421f36302c0fda458986010c6fa6. 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/JPPO00830990.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f4eeb4c6d493041c585e9b1469d995eb29e01edd79daef5538b9735433757b4. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/JPTO09141590.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcf3ffc7b22c0876d72803c32133b0ec4be8713af431899cf9f9b85fb32c444c. 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/JPTO09114910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91a0f2a33c558481931fdc315258f16c0ab98f6afb05024e4d7177289edb563f. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/JPPO00320200.
ぼくの家の前の道を今朝も小学生が通います
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebc8444fae1fcee4693abf453b986a80265bfa65f21af4a47dd8dbbd5c94aefe. 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/JPTO01101221.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf4fd75b5259d22dfe8f91175a47f16429512f14bd120b612fca031b8f1ba080. 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/JPTO00801361.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde0409196daa2ae59a618a2ad33c52ab4c96cfb1ba3859b57b3cc9233d8657d0. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/JPTO09439110.