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 0xf58e6d12cc5a419646fe310752d3039ec31d8aaf06c9d77f7c4eb2bed7c45006. 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/b9f45383-7142-413c-aca1-6d5c9060f8d7.json and https://artists.proofprofile.net/proofs/artist/b9f45383-7142-413c-aca1-6d5c9060f8d7.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 0xd5cae88219b2a08a05396a28312c15eec335d9e31e6cfba2f71e677e22cd304a. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/JPPC02100300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x629c1109dbb271bca8416977ba45f20f7edf9ca335772f831cd330ed3f371bc4. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/JPPC02100299.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea084e02855e402ea2cc775d32d8e4517e6b94307d7de13e11fdda7744678698. 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/JPPC02110599.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65282d7d50488c579775824a414e9c319e78ed2d9128038cc2ec3589f0e4e058. Chain 2 (Bitcoin): anchored in block 958828 (2026-07-20T07:54:02Z), 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/JPPC02111555.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaec10906d7674f94631be94ab0a1145529561bd4ea53b6c4e4377c9ab629812f. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/JPPC02111556.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3389f63544ab6d4f2cb5a5a035b7ecbf2bb95388a47749cab5bd825801e2320d. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T08:39:15Z), 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/JPPC02210980.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2214dd1affd9976b766c09535e6ca3e71271e388997be6307c39614f0b65f74c. Chain 2 (Bitcoin): anchored in block 958991 (2026-07-21T11:00:31Z), 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/JPPC02210985.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a9f0e9e0d0fc4c48219e9bc343a5377c4dc1884a2175a8876c048e408111e79. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/JPPC02210986.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fe41b40812855bdfd399ce2708806ab2ec3d1d8f9664c1bcf7de494adb4b488. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/JPPC02211551.
Kimagure Ticktack (fu_mou Remix/Live Ver.)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53f4c97a17e3477ed4f11add51f67ea98300b2a4c9dc673abd959b27713adba9. Chain 2 (Bitcoin): anchored in block 956748 (2026-07-05T05:55:59Z), 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/JPPC02310234.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f704c1d84e1bebd8ddce9370d7732adfa0fea6ac1d05d2bb1085d8d76144394. Chain 2 (Bitcoin): anchored in block 958969 (2026-07-21T04:58:13Z), 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/JPPC02310235.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46bec87e5d40d61b2a7a48b8bd6878b6e559828919ca60472c8ea6e36bbea28d. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/JPPC02310236.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x892d91e206b2d037fb646a2de050812e01bc0fdb9e09f5f1e42b6e5e886be9c3. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/JPPC02310237.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91716f60f393f4e129ba7662b4921aed9b5542dca071f51272c5ebd25525dcc0. Chain 2 (Bitcoin): anchored in block 959071 (2026-07-22T01:27:58Z), 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/JPPC02311348.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91716f60f393f4e129ba7662b4921aed9b5542dca071f51272c5ebd25525dcc0. Chain 2 (Bitcoin): anchored in block 958465 (2026-07-18T00:04:42Z), 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/JPPC02311348.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3606685d17b44f7404fd747fdd5e572d9491ecd0e300be30d6d33eceafec196. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T10:49:41Z), 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/JPPC02311738.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81e316eb4c7ae9097e8aeb535055e28edcea7d590bcc4d47782abfccc58807ac. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T20:03:27Z), 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/JPPC02312737.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81e316eb4c7ae9097e8aeb535055e28edcea7d590bcc4d47782abfccc58807ac. Chain 2 (Bitcoin): anchored in block 958969 (2026-07-21T04:58:13Z), 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/JPPC02312737.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc37f37bb8b58b23939d08cfd744b7008ddb822f588aa7afdd9191b47e98ba621. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/JPPC02312738.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81e316eb4c7ae9097e8aeb535055e28edcea7d590bcc4d47782abfccc58807ac. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T10:59:26Z), 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/JPPC02312737.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3e2e15cd87fb03e7dc29b2171f80dd5c4c244707cffb45ebcf544681feeff42. Chain 2 (Bitcoin): anchored in block 958633 (2026-07-19T00:54:50Z), 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/JPPC02411312.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae034dba3d191aef163b6c6bbe0f392cbf748bd039e09b026cbfe9a6e8a65acf. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/JPPC02413538.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafa65761a5923b11ae5de680ee63f3d47aa2c8ed865877505d2448958acdf5f6. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/JPPC02413539.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x527a1ec9b293bc1846caf065944dde2a5e59dd96faca89e79107094a0845f933. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-17T04:21:59Z), 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/JPPC02510825.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x527a1ec9b293bc1846caf065944dde2a5e59dd96faca89e79107094a0845f933. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/JPPC02510825.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed6fc7c591eba373a4d1d3293cdc8b561b5ddb7d7bf58ac9683b1b1a02587c4a. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/JPPC02510824.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fef8c0e36c6b97f299e8026cdd055dd058472bfa19c22ec0c6cc786ab74279f. Chain 2 (Bitcoin): anchored in block 957779 (2026-07-13T00:19:08Z), 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/JPPC02511303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed6fc7c591eba373a4d1d3293cdc8b561b5ddb7d7bf58ac9683b1b1a02587c4a. Chain 2 (Bitcoin): anchored in block 957780 (2026-07-13T00:36:44Z), 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/JPPC02510824.