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 0x26ed4141d8e73af3423baad812ff65caec1c8b115da3e4fbdf6afc9f067115ee. 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/6794cd41-b9e3-47e5-88dd-cf0ddc924111.json and https://artists.proofprofile.net/proofs/artist/6794cd41-b9e3-47e5-88dd-cf0ddc924111.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 0xdc0264d048e3014b038456ffd1ed94a199a6316b580c489e380124bd8808cd82. 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/JPJ902305540.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdf0ff3647d21264d24856d98a53a2faf8dab4dc4ef9109fd32e6689ca0fc929. 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/JPJ902305550.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24a4b915ab8f2abba967653aeb27c6259a4524d7b155c634f632f7191447ebbf. 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/JPJ902305560.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d899a4bb4e035bc3e713e85e2e19cd71336f9c05d0b4cc716420a473908bc7c. 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/JPJ902305570.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafd8c04139d4fba125b311c66377638a34924ae00322fd599ed145cec6237e41. 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/JP92L2301590.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e25348e7f4725581ac47543c41ae2f41e396b29a926234a8f899c6eb7e0ea43. 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/JPJ902305580.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2ca4f5d5aaab824e9d4d53d73b479f44e1c0b81627f087b4317be94af4eab12. 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/JPJ902305590.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddc994b331f89b2796ccb2ff95f86d251508942572b6588cb714739194f12adf. 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/JPJ902305600.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7d513aa2dc27c284cd37f46f3e0b5eeef30f6e342756c3dd10325ce56efd014. 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/JPJ902305610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27b7062f2b3e36cbcec00b82ce0b6c03a8c4b93d26b7a594b53ec1fc6d912a28. 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/JPJ902305620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fc6052973812dade22214996ba4e8e618a6b4fa204c220f63c7e89166731fd3. 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/JPJ902305630.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83cb5dbb4662fd81a21411fc4c0e1362214dc52155fe3196ad1c86df69107f71. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/JPJ902305640.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0d2e70acf564155074004659b6bc86a50fa1507bec26cf8e80baaff75a2b599. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/JP92L2425150.
Reason (This is why we rap) feat. ZEEBRA, Mummy-D, MACCHO [Non Stop Mix Ver.]
LocoHAMA CRUISING DJ PMX THE GREATEST HITS MIX
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28aa18231cbb180be493d5058d2b73b5df591d659381ad1f7ea936fcc1bd5b37. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/JPVI01404340.
君の名は…(だってしょうがないじゃない)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ef004713b8d3bc78bc488d9f7d7509eb7d14824d8fdf29f4ef66a7cd1ab1ab9. 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/JPTO00700027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x313c29af5149b4ffd3c5a9553dfcb4e1b9b53e63d63d3ea9e6717cd991393661. 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/JPZ920600041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecb1be6b1365d4b1bf8074852d20dc4fd1679ff56d2f49f628ec3e1b67c7c9a1. 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/TCJPB2407337.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53e4a5298f55a6316bb34528f89c1a73c065cc7da426a5fb27f23c408ec5cffb. 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/JPB600511908.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3862343a070fb8295f936967b2ce951ededd0b4861f33a1bd4201b36bc33cea. 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/JPPO01401606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2bd995bee5ded2a306e9a0be2d0f4cbc42e05f4e1c35ca1b8525810382f4441. 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/JPPO00738070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2bd995bee5ded2a306e9a0be2d0f4cbc42e05f4e1c35ca1b8525810382f4441. 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/JPPO00738070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb12852924afa3d0bbd4fac523e11c0679591bf747f56251b1154535773f4697. 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/JPMV00301790.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x056388dcc84bd4d471a857316a773f51a4a86db26fd23670757dcf7b1f4de2b6. 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/JPP401001021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0dccf003701dc7b5bde594676f4e2700b83e297ee14cf8fb8a512fd0270bc249. Chain 2 (Bitcoin): anchored in block 960352 (2026-07-31T05:48:30Z), 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/JPSR01400082.
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