Kapital may refer to: Literature Das Kapital, a theoretical text of Karl Marx Kapital (magazine), a Norwegian business magazine Kapital (newspaper), weekly newspaper from North Macedonia Comp
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 0x4432d630c0236d397b91efa18fa7a4d590c7633a06e67dcb4eecfb7b49d1d06e. 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/47c8a3b8-6f31-4876-a3aa-061a49ea9449.json and https://artists.proofprofile.net/proofs/artist/47c8a3b8-6f31-4876-a3aa-061a49ea9449.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 0x168dee7e779326e92e4699833259c40076e7cd2e0def6631d2ca5676db36331d. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QZHNA2191367.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fb55a7dff19aa275deb9d4bc9f50d5fb6c1ec57c06e7f05d93c1b20ff598b43. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QZHNA2192568.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab1a92345fd0d15da9194c560c23078614069ad4158f1a30294c2ec8657525b2. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QZHNA2192572.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d487f680bb084e35ae1fff277bb92b4eca523694b1ef71aa0568fefc077b501. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QZHNB2148548.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d5b639d5b5db812b5fe2630e959f17b212800c419d36e71bf646b49f6e0ab29. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/QZDA81889863.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdb9127a583d1711f47dbb216f5985ee7548974d4bd3c37591b5b825ddf525bf. Chain 2 (Bitcoin): anchored in block 958075 (2026-07-14T22:55:31Z), 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/QZDA81889864.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf27316e2e57150e8c7395acc33675674ab0a9271f616f87762aa4e598a243a0a. Chain 2 (Bitcoin): anchored in block 957747 (2026-07-12T19:35:06Z), 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/QZDA81889870.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2dcd4ea428c35d089ebd9e6bb3a8f985cce950864e02aec030211a0ba2f77922. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QZDA81889875.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11197c00d11503c653e649df72ebc2d945d9c558bf1d837e9b5dedfa3b3ab147. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QMPKX1816443.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1bbc0cce11d9ea8f4e3265d3907d2b3de61d1945ac108e35b216bf5295cd274. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T16:14:34Z), 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/QMPKX1816452.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3745bef7ff0be8853084fa5b66f47c57ba80bff96bbea8f7e7223724e2bbf4e6. 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/QZHNB2136273.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7949d28caba25802ff939a71033140f4fd8ed57a9fe95780c8a63028f7deaec4. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QZNWR2003227.