Kursa may refer to: Beta Eridani, a star Kursa, Iran, a village
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 0x3c0619c270b905440c5da95890f3bfe2f8d89a827387f2377849aaca25b87f93. 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/12e8b98b-6802-42f9-b62e-73ca9040fd79.json and https://artists.proofprofile.net/proofs/artist/12e8b98b-6802-42f9-b62e-73ca9040fd79.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
You Can Eat Whatever You Want for Breakfast (First Course)
The Takeaway a Day Tape Breakfast, Pt. 2
The Takeaway-a-day Tape (You Can Eat Whatever You Want For Breakfast Part 2)
YOU CAN EAT WHATEVER YOU WANT FOR BREAKFAST PART 3 (The Final Course)
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 0xddc48e85eb9ee95531d4d85e15c6809e4641e85ca59960289b7a37547422ab41. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T20:53:28Z), 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/QZTB92234646.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa665291c0275c0298f3b9971b8c09a6889f6b541592b3136825da7a83512e0c. Chain 2 (Bitcoin): anchored in block 958140 (2026-07-15T12:43:17Z), 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/QZTB92234651.
You Can Eat Whatever You Want for Breakfast, Pt. 3
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x298f0d3b97bc439514bbeb14ce60571d6371f7226a4ec6aa4b7f6b82d4771041. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T15:22:58Z), 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/QZTB22229796.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a0ffe94de2048b37c759ba42c9ab78bf00ee6f43f88a3cdf11e55da6f4e9902. 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/GBKQU2456214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89d5d6f1edf6a6da5ee0d0426bd4e9695dbd6c050766ee36074387fde846d4d8. 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/GBKPL2153590.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x086f4bd6caa5ad0e723050d579e715683844c2d3ed97fde304bb2788f8a85296. 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/UK6822123039.