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 0x31c84ce9a8da843428985f0d937944370534f004bdc98a662ed1dc9675459160. 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/2bd29d1b-278c-4875-87e8-8e74f44d978f.json and https://artists.proofprofile.net/proofs/artist/2bd29d1b-278c-4875-87e8-8e74f44d978f.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 0xa2123bc159a6731151acd9485935c032f6247cd077e577abf7764a7e03af1057. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/JPJ492100266.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x421d05aecd7f66d1964e2737603390346291ed5c1c14ee71be2764e317bbce6a. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-20T01:31:25Z), 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/JPJ492100267.
季節を巡礼して生きている 季語に縁取られた体で立っている
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fd2b14a41336359ba60ec0e0e7ca49fe0e69154a82cfe5ecfcac8bd35994a41. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/JP92N2301419.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x741e3f0ebd75c1b398861fdbb45f95f808e22bd3291cf345440691c6a575f5a8. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/JP92N2266962.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafb4864ca58ef5962fb739ce14291e0c8032287f2ed2239f879fa095b4bee5ee. 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/JP92N2253769.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24fcc39f15eac9d7e11b5ae6019bc0730ecab09e31ecdd233451651ce5a93ca0. Chain 2 (Bitcoin): anchored in block 958850 (2026-07-20T11:09:08Z), 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/JP92N2345908.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34a429763dccba0e9d268f0ffe720ae0f248063894b93261486eff13f66c49bc. 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/JP92N2360518.
Ollie(巡礼する季語) [in the blue shirt × ゴリラ祭ーズRemix]
光の波間で息継ぎして (ウ山あまね × 諭吉佳作/menRemix)
光の波間で息継ぎして - ウ山あまね × 諭吉佳作/menRemix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f3b0a60d4fa68407b46a70a5a9c8b3d9344fe188c57650b0af2702775eb2817. 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/JPB602500850.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98b17142fea5ac23ad694dd61d902da988736a43842a6e68ba1ec5931af641b3. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/JPB602304731.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24fcc39f15eac9d7e11b5ae6019bc0730ecab09e31ecdd233451651ce5a93ca0. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:38:47Z), 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/JP92N2345908.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6597aff2dbd1890115507a9efd01759ef2ded2cdb0d0103f65e52a6a50ac30a. Chain 2 (Bitcoin): anchored in block 958185 (2026-07-15T18:19:04Z), 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/JPB602501783.