Kas, Kaš, or KAS may refer to: Government Kerala Administrative Service, administrative civil service of the state of Kerala, India Karnataka Administrative Service, civil service of the Indian sta
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 0x7c20e0589bb15f2af8ba2b646a657cadfc02fb2f48b0e922df7e7127d6ac3e7e. 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/c61ca0c3-3ea2-4133-b10f-8de2b3055edc.json and https://artists.proofprofile.net/proofs/artist/c61ca0c3-3ea2-4133-b10f-8de2b3055edc.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 0x5edc9d05ee7b8cf698685c48564766e8eaaf79fdb9cdf1ea893ce481acfa78d4. Chain 2 (Bitcoin): anchored in block 958711 (2026-07-19T09:26:32Z), 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/USUYG1285401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cbba4f8cd923517280244db9bfab186ff2578de31e476e12172fd38e22f7b36. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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/USUYG1362350.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x824950311e828f756fb6948a3fbcb916c16245b0be12a530e16075becf58ae38. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/QZS672144837.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a582b7c62affe6e21fd1e1170bcd74ca2dfb932ae37ff4a72165d0459e307d7. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QZS672145603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x795db444e8c3ea29231729cf82a9c5e68167a42196031d9dbed051a99b37afda. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QM42K2281282.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x839cbb790c4928714ae106242b7b803184dfa10a1d02d0d9d40ad357045afcac. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/QZMHM2232521.
EXTRAEXTRA (feat. Silkk The Shocker) - Bonus Track
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x101bbd24e543c814a43c95523a13e05889c22721d4153f48b8883e74e11f4a90. Chain 2 (Bitcoin): anchored in block 958430 (2026-07-17T15:33:28Z), 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/USUYG1718460.
Peter Rosenberg x Ecko Present: The New York Renaissance
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfacf42306840035faf3fc7c37474271c18cc9f0c2fea7ea88d2738bc7f3ab8e. 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/USLD90805025.