DemoFor public education only. These blocks are built by PisoScan from published PhilGEPS records to show how a budget ledger like CADENA would work. No government agency created or signed them, and this is not an official ledger. How it works
Transaction details
APITransaction action
NATIONAL PRINTING OFFICE Award a ₱5.0M contract to MADAMBA BUILDERS & TRADING CORP.National agencies
Transaction hash:
4e17e6611b4115d8fc64c86b7359eb9a9841a07c8f5873bfb2e43abf3d9585ca
Status:
Included and unchanged
Block:
#4,563 1,450 blocks after it
Position in block:
Transaction 52 of 158
Award day:
Sep 9, 2021 (5 yrs 2 mo ago)
Value:
₱4,978,618.56
Project:
NPO Maintenance Container Type Accommodation
Full record:
Accountability
Bill Sec. 3 and 19Responsible agency:
Accountable officer:
Not stated in the source. PhilGEPS does not publish who certified the award.
Certification:
Not certified No agency signed this record. Under CADENA the accountable officer would sign it with their own key.
Demo signature:
Block #4,563 signature valid Demo key, proves nothing about the governmentPublic key
Linked records: from budget to payment
Bill Sec. 5- 1. AppropriationGAA line item · Sec. 5(b)The award does not say which budget line pays for it.Not published
- 2. Allotment releaseSARO / allotment · Sec. 5(c)(iii)Not published per project. DBM releases SAROs, but not linked to individual contracts.Not published
- 3. Cash allocationNotice of Cash Allocation · Sec. 5(c)(iv)Not published per project.Not published
- 4. Contract awardNotice of Award (PhilGEPS) · Sec. 5(d)NATIONAL PRINTING OFFICE awarded it to MADAMBA BUILDERS & TRADING CORP. on 2021-09-09.Found
- 5. Contract & progressContract / progress report (DPWH) · Sec. 5(d)No matching DPWH contract record (only DPWH contracts are listed with progress).Not published
- 6. PaymentDisbursement voucher · Sec. 5(c)(viii)Not published. No public source shows how much of this contract has been paid.Not published
- 7. CompletionCertificate of completion · Sec. 5(d)No completion certificate published.Not published
- 8. AuditCOA annual audit report · Sec. 5(e)(iii)No COA finding linked to this contract.Not published
1 of 8 documents found, 0 partly. Under CADENA every step would be published within 7 working days and linked to this record.
Tamper test: try changing this record
DemoEdit the amount as if someone quietly changed the record. Your browser re-hashes it and walks up the chain. Nothing is saved.
- 1. Record fingerprint changedstored 4e17e6611b…9585canow …
- 2. Block Merkle root changedstored ef1c0ab29c…473a4dnow …
- 3. Block #4563 hash changedstored 1cae7f5b41…f22855now …
Chain intact. The record matches its fingerprint, so the block and every block after it still line up.
Merkle proof (8 steps)
How this one record is tied to the block's Merkle root, without needing the other 157 records. Each step hashes the current value together with the sibling shown.
- leaf 4e17e6611b4115d8fc64c86b7359eb9a9841a07c8f5873bfb2e43abf3d9585ca
- 01 R 53a251b29395579fa30ee63cb3371442d2d8c59034edbde6e016b216e6712ca6
- 02 R b8c48be89d190e430f6df596ad276d95ebc6f081572bdf43ac29ca8dd97ab679
- 03 L 07006e1421e58b268684f4ef1ab8be93689c6cd92bbe0ac5fa0994380a2f4466
- 04 R 2526519b13ac44a67970c274ab64e42cc7794229f6071e84365b3d6a5d424524
- 05 L 0e1324e96a3194587d4d515b24b95f40b548e852a86407666e3432f6e24234e2
- 06 L a8f0c630f85974c8b7b30f45da8c90b51fc9fbf8afdf0b9b22b445eaad7c7471
- 07 R e5e73c4459ae301122dc467aa5844f89f859c27cb3ba388c41d6040704a21ed8
- 08 R 17aff74ba7989912323793a10eb4bffe6cdb6606985404690dfd8c4d8c534311
- root ef1c0ab29c1f2ca3a267805f62d6819b8b05031145a9d61dbfc5d9f57c473a4d