KJM can mean: the Kyoto Jazz Massive the German Commission for the Protection of Minors in the Media (German: Kommission für Jugendmedienschutz, KJM) Keyshawn, JWill & Max Show, an ESPN radio show
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 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 0xed818d53cce47ad25c9d0e2449cb6b9c6eacc88a68c1a41331cf2f6ca5007592. 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/cfc17a4e-6815-498a-b7d8-05a2377a9225.json and https://artists.proofprofile.net/proofs/artist/cfc17a4e-6815-498a-b7d8-05a2377a9225.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 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 0xc565e355c293ad64eada760e0dc2134b3521eede3fc66e44ce4fbbe9c82e894d. 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/US3DF2461354.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bcb5a758c7afefb7b14831bb831c59599b0be90a93877b832077ff2adc7f067. 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/UKZGC2402282.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b40ee6a0f7db8e1674f898a136281ebd71a85361ea7f7b98906cd6b59d261aa. 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/US3DF2416237.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0998253be5cc4bd14ae1f70ebbf5b59da5406803591f34f51da4ddc46f0350f. 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/US3DF2416238.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22e425dcd05f697813d1f149c124ea5e47f16ff45ecb12600e4d2323c22a0526. 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/US3DF2416239.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x703c667cf92b5687aa24c9d106f44118c8b987217b665b6a1e3ee9ee4a6798d1. 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/US3DF2416235.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd561741c2976b64459daa9f53ed1ff28fffabb5f2ed4d1187a21678a1446ef13. 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/QMANG2245806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea8ec2c48c6745d4b654e5c8939afd3607a12c6d1dfb4b0ef02ef2f24ce4b456. 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/QM3DF2474793.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20c15119f7e51776f1b796bf151b75325219ee5bf2f7b00e3d93aacd00a65dca. 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/US3DF2402752.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49a5fa2ea7378aefdf69b283a3c60cea6c8d67ef8009ae9a2c3ef4e99ed41c4e. 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/US3DF2454904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3db6d5bba7546259c2a3a60b9027bc08f6a11ad45d085c2b263534d8870fe5c. 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/QMANG2235821.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a9c1783d21211843afb7d533e8e5c1c878f177596905c213747e3b83181429f. 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/NL4WT2300310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcad66e9bb07f7620e0cdb5add1e46b8fcaae74dc292a86bed75a324fc48403b5. 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/QM3DF2289252.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1113b474b76b45a7f3db3f6797a707b8b81d8371ad99738d25f105c600f00788. 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/QM3DF2289255.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d231b30b5578b417f3f9436e0d0510588662036a89f3885aadccd6671bc44af. 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/QM3DF2289256.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7056a71d2e92a02ff02c3743d2c5779308306b4a7d1378ed9417d0994a903ab8. 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/QM3DF2289257.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ab64e6f72b45c65ee2e091c564a5c8035d0ef311fce8d449502bf4fffee048c. 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/QZTAW2393107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0530b2b13844a0a786c9841de35120b8f9388d2f99a127540083fe255b5e4940. 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/QM3DF2219383.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdef441f095af8859f0ab2f2a47f6ec82980a0a59900fe8e0b4fd10adf2b09479. Chain 2 (Bitcoin): anchored in block 959118 (2026-07-22T10:01:58Z), 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/QM3DF2243514.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc034ec4b36d620ca6f2cb94212b96a561992bbc2d7720540af5d5c3d548adf6b. 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/NL3JA2300011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a55feb574dab37e544206e93d182b8ce2d4bc9134eb241a24d34d1dd9f34ef8. 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/USANG2293937.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x893b922917e019a9274aec264fb81dc75a43ff6c01f0509c6d16f8039239b0b9. 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/USANG2293938.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffdfeea321919bfce91e116eb9730c96b53cdef660df45bc9ba7f18527b886d5. 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/USANG2244960.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd070a18d6348d28f29a019cacb09002878ea56cb60a715dad0d120388e128dcd. 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/US3DF2597446.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf249b83cfb766d42423ee8ea98b38812986edac379414ed230dbe1ddb92738a0. 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/US3DF2597448.