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 0x6262cf2ce57363d0f2cf7181f7164f7e92b2f2d7c497726260fd3382dc186fe4. 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/67abc892-9133-4a22-9d18-559650afee4c.json and https://artists.proofprofile.net/proofs/artist/67abc892-9133-4a22-9d18-559650afee4c.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 0x4e1266ba6d61eb00d683091b1661825d0aa6d392862db1d09a34671990536e9e. 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/JPB602201410.
the Love Bug - YUC'e Remix KYO Non-stop Mix Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x949c416134cf6d806f38b0fb251b4540a16143bdca52641ac6e232e894414ec3. 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/JPB601903098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc1acb79ddfd2062ed12580a83cb6b6ca9d929c14d82cd70222ca4bfbaf165eb. 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/JPP561100416.
YUMENARA IINONI - LUPIN THE THIRD JAM Remixed by YUC'e
LUPIN THE THIRD JAM -LUPIN THE THIRD REMIX-
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9605b9ebf8c3550878e1807d198d2fdd687b10750632945d6670e00b339b3ab2. 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/JPVP02006708.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88a7711a2cffe20619ad4d76f4e15ef65e1612952195634c182b0cb923ee674a. 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/JPB601800298.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3a743b13f66f1f8409c3b273221397aaed6b633090a6bdcb5c77c8a7c429648. 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/TCJPK2082077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea6cca46761adf231d0762a10114e740d93cf9681df57f0599df43c726714bf9. 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/TCJPK2082129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54f2ed40aac8d79379459f9c251673f975edf89e875719240229e23777ffedc6. 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/TCJPK2082130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf975e6ae2a6b5f28d88f44000c064a21799b0da1246801443666628de11d15f7. 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/TCJPX2380653.
チキチキバンバン (スペシャル・パリピ・アルバム)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6403fe67bbfa42e7cf90d84cf1813bc48018ad0f41cb2e1b33ba9e07c578de90. 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/JPB602203139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf247a6cae961a0188a32d42f9f9818d91d236f5c21a267c91200df877c37c20c. 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/TCJPQ2296394.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0c80634ff5bbc50b90f7b60ce371486f29ff1d3387001dda0721184e8fe7973. Chain 2 (Bitcoin): anchored in block 960376 (2026-07-31T09:09:19Z), 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/JPQ891801007.
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 0xa80b217220c33757f257aa233af025e45250cd99fb3207de1710bbeb6bb1ff0d. Chain 2 (Bitcoin): anchored in block 960218 (2026-07-30T06:57:05Z), 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/TCJPY2345626.
CHUNITHM ALL JUSTICE COLLECTION episode II 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb81c42a9bdbaf0a53dbe7700bfcbfacd513547e1e6a374bdf5f49e9f357eedf6. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/TCJPS2247017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x652036d6ebaa977a2348b4531eaed0d4c1396ddb6eabed77ef7e7934ac36be82. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/TCJPZ2459317.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf30c66de86046b7ac6aed2d25550fd610be72d52e16061a73c34e38fecfb8db2. 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/TCJPZ2459322.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa2d6bc55a57b906200ed1c7baee23cfe2d7ed2df3bf502367b933a1865b15b9. 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/JPV752104604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x764405a78cdd1654d31d97d294f20e333b4b94db29e08e28d24da4eb86679be0. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/GX8LD2281002.