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 0x5dc6410fa0b2951d2cc2d7922f8f1317baf0f01566ab88f5f15273707ed92cd9. 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/82771b13-8b27-412b-94af-32524423999f.json and https://artists.proofprofile.net/proofs/artist/82771b13-8b27-412b-94af-32524423999f.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 0xc05cb8fbde936483051419951533852ea03e47593ff593b28d25a9e64499d9f1. 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/JPJ901512170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa307ec636dbc812f0966758a1c9d23466c7ec05cf966afb5656e30d7dfec7c16. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/JPJ901512180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadb685b69f08a3d21e282ec0f0cc9db6cae8b9225352260a05e8ce2e5175a6e8. 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/JPJ901512190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3652b5d71080ffea353a6fbcb2b35a1a05232ff3d58b2d88a22822a58fa9525. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/JPJ901512200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x007cc873ddce2962df21fdc50f0ba076369cc9d8486b40b2c020a7a1f7d1125d. 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/JPJ901512210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x056c88a90a0f71531dd10304d22b05c3bcd3be4b978f28f9cd07b7e64ece43d8. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/JPJ901512260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94fb923804040b12e752ce0e84e97e7ea1d515164d19450605766bb8ca497539. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/JPJ901710720.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x562512005329171e7191b133592a2854e954d84a6f90eeef1cdd2a6ba928d82d. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-20T00:12:20Z), 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/JPJ901710730.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x049c04fe00a843ffa27c3da3daa9c5c774d972efba4c416681fdbe175517cd4b. 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/JPJ901907300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x371cc60847ff393e3383ff85c3ba26d1e5ce2c5e434e4f58a479744770cfcdf5. 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/JPJ901907310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb23c7afb090d16797de588ac2ec9e00a5d97069e19611d53c704c375d6a342db. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/JPJ901907320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c9e38d2d747c2a7525a7b714ecc5501308afc72c46faedc08a7fd5d56152b70. 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/JPJ901907330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef742a66c3bf285f7aff6d39fc69f8b73acf028244a61f7fa269743fcd28f433. 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/JPJ901907340.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37d557d7c809c4300bbac995c0f9ad72fa4b61b4fab79b709a233e5292d73c9f. 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/JPJ901907360.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25318d8e4bc7d8edb0184402195052a7ff0e4d04974feec0b3314da3ef599a4a. 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/JPJ901907400.
The Secret Dub Life of VIDEOTAPEMUSIC (Deluxe Edition)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1653ab7ea85a99cc441d4d29f31ae7a6ab69166248b0a646bf2aa59e14e855a. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/JPJ902102630.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39eb1caf2129dc099ac12fe774ed84ef4b7f03493d33065f573b3747ba96537f. Chain 2 (Bitcoin): anchored in block 958122 (2026-07-15T10:55:57Z), 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/JPJ902104140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4a8599e9edda4874d82a8c2940e3b8526ed66a181f3917dd3d0c60abfc9303c. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/JPJ902109450.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2aee8fbb16e376a1587b079c210ed38ba8c47c6b552e2fafb7bbaf0c33019aad. Chain 2 (Bitcoin): anchored in block 958991 (2026-07-21T11:06:38Z), 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/JP92L2203440.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed52cf084ed6517508d52b211a600943c599b7dd8ecb857f585fde66873b1e18. 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/JP92L2421570.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00c764fb201f730738b2fa37f9daa813356aeff934d1307ce545f7c87d7163ac. 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/JP92L2421550.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d1d3142f4afcced116ec7db49a697b182712fecc8ee26857bdf5f6a632d9272. 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/JP92L2421560.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed52cf084ed6517508d52b211a600943c599b7dd8ecb857f585fde66873b1e18. 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/JP92L2421570.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5f2b65cce46c56f705152fe37ad91c60c1b78f4504b5f1a0d64111851b98ec0. 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/JP92L2421580.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcba2a4702eb451efee50dbb2ea15a9af8c5321a96ac4a92971918b37768ce829. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/JP92L2421590.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc95f2c8b818916b238ed8be50b35acf72e23f6270c28bf3bef52bcb146be5a4d. 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/JP92L2421600.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15f2abdfa44b3d665d801de6a688ff9244027022e62d59a9c9c4de441e85dea5. 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/JP92L2421610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78d19f42eeccde851e30c6a93b494cfa76edf17a06929983ac367a5d54e9729c. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/JP92L2421630.
Ishibiki Geba Geba Ondo (feat. Takefumi Tsujimura)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2883c5035403fd7589592b37b061b9799014e40a5a2725d41563c2ca6a21f5c. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/TCJPJ2587198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55e4575777a6739695eab3bad661a4ee6c0b4c58ce00f004206609797145a964. Chain 2 (Bitcoin): anchored in block 958246 (2026-07-16T08:05:20Z), 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/TCJPJ2587226.