1.2 KiB
1.2 KiB
6. Look up a hash on the central Verae chain
Zapier search: Find Timestamp by SHA256.
Middleware: GET /zapier/v1/hashes/{sha256}.
This asks the main Verae chain (or its mock) whether that digest was itemized as its own seal.
| Result | Meaning |
|---|---|
One record, exists: true, itemizedOnMainChain: true |
This hash has its own certificate. Use jobId / receipts[0]. |
Empty / exists: false |
Not itemized on the main chain. It may still exist as a leaf of a bulk summary — use tree-node lookup. |
Searches in Zapier must return a list. Zero hits is a miss (the Zap can follow the “not found” path). Errors other than 404 fail the step.
When central lookup is the right tool
- You registered with Create Timestamp (single item).
- You stored the
sha256from that Zap and want to confirm the seal later. - You are verifying someone else’s itemized hash (they gave you 64 hex chars that they sealed individually).
When it is the wrong tool
- The hash was submitted in Create Batch Timestamps. The chain stored the Merkle root, not this leaf. Central lookup will miss. Continue to tree nodes.