KBG or kbg may refer to: KBG syndrome, a rare genetic disease that is the result of a mutation in the ANKRD11 gene KBG, the station code for Kongsberg Station, Buskerud, Norway kbg, the ISO 639-3
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 0x1201fb9b959658a2b2776118b71dc2b73941d526a0322c6bc730ec68d37d6852. Chain 2 (Bitcoin): anchored in block 953882 (2026-06-16T03:13:34Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0a6254ea-7aa3-418b-ae9d-78bc27bc4019.json and https://artists.proofprofile.net/proofs/artist/0a6254ea-7aa3-418b-ae9d-78bc27bc4019.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 0x3bead6381a1e858a49068e41d51aabbcf97901380b0648c9c48683345652e9ac. 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/GBLFP2140285.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68f707944bf2ae1477c496d0f705453e5bb4c50fdeb993d5da77411a68621d8d. 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/QZTBA2270401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1f6b19cbf47cb4e6504d78e78e6d5da01f1b680766fca98fa60cc44f172b1e6. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/QZTBA2270402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcced3a1034bd7ed3d44bf28a8593ba5811e95ba8d3525fd71d26ccab116a71ff. 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/QZFZ22351496.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25fcce0c416db96cded6f23f1c1dacece001dd957473ed8a46bb9d0712d2241d. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/GB5EA1703959.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc89ba2488569ca29483e3f3a31bfc2c8260ae9e73838b54cfa7f0e394f6f4083. 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/GB5EA1703961.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7ffd7d65858d541371d6cc7067ba9fa7dfdf083efa9344c4d02d26bf1a7263b. Chain 2 (Bitcoin): anchored in block 960370 (2026-07-31T08:38:45Z), 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/GB5EA1703962.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5312fa5adf1e42b821b8a0d34555e73f03f37a4809ac3913377a624705d9a960. Chain 2 (Bitcoin): anchored in block 958041 (2026-07-14T18:13:17Z), 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/QZDA82267545.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2644c8948b7c8eda0b3ab0f214e76af77ef39f60952075dc8d73dbf63bb4bfe2. Chain 2 (Bitcoin): anchored in block 960497 (2026-08-01T02:22:04Z), 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/QZDA82267546.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x842b5cafa9c43087924874d51ee89cba70c73f537ad27fd52d36262ffc8eef6b. 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/QZK6Q2293871.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6712de38305972d8f86b16e9a347e00e04f920cefef6c990bce477e41c50a8f3. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/QZK6Q2293872.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5f7c8bc848d7fc72e182afaabed8d89e9794147fbef4551e925f308ea81f7f3. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T08:41:42Z), 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/GBMA22420538.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfbf2db0fea0e093e70b52bc59b23c41107ce0bb608b53b873cc0d7cd37b9999. 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/QZWFG2304124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ce6d2fa3a59ba6d950929d3b2d08641e2cb0a692be0e82dd288eba139cbf075. 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/QZWFG2304125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebd6f3f7dd9d9db2a5cdc9517c58ffda90c15bbb7d17648898686f9342ebe321. 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/QZWFG2304126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f61a3bffe1ea505faf22f44f3da93525355faf49b26905cc679be8af9f381f7. Chain 2 (Bitcoin): anchored in block 957046 (2026-07-07T14:04:01Z), 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/QZWFG2304127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5fb04919f0dfa5f88968ffba8240a0870ea3aa95c54df835adc766da715a169. 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/QZWFG2304128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8fe8abb2d302cf20f3bbf47aa0753b27bff0eb2ec2de32d80a754d58af3392a. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/QZWFG2304129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc455f0d89ad388301823aaa3242d5de573d49300c97a0ee01d176c4c6c6a92d2. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/QZWFG2304130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0d8374db84920ff265078e1a8a0fac6a666cd01797644b84062367fac3bd9a7. 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/QZMEP2190859.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3360b12ea1ee1c234952e3464207b20ad777f1c4a8ee4a14a18df3dbe2d9ee5a. 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/QZMEP2190860.