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

API

Transaction action

DEPARTMENT OF EDUCATION - DIVISION OF ILOCOS SUR Award a ₱568.3K contract to M.A. TEJADA CONSTRUCTIONNational agencies

Transaction hash:

cf468622f3fe968a2abda763906bdcb6a2d1ef47f3ec324aa11a8af50dac3a8d

Status:

Included and unchanged

Block:

#1,371 4,642 blocks after it

Position in block:

Transaction 41 of 57

Award day:

Feb 6, 2012 (14 yrs 9 mo ago)

From:

DEPARTMENT OF EDUCATION - DIVISION OF ILOCOS SUR

To:

M.A. TEJADA CONSTRUCTION

Value:

₱568,326.98

Project:

2 Elem. Schools

Full record:

Open the award page

Accountability

Bill Sec. 3 and 19

Responsible agency:

DEPARTMENT OF EDUCATION - DIVISION OF ILOCOS SUR

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 #1,371 signature valid Demo key, proves nothing about the governmentPublic key

Linked records: from budget to payment

Bill Sec. 5

1. Appropriation
GAA line item · Sec. 5(b)
The award does not say which budget line pays for it.
Not published
2. Allotment release
SARO / allotment · Sec. 5(c)(iii)
Not published per project. DBM releases SAROs, but not linked to individual contracts.
Not published
3. Cash allocation
Notice of Cash Allocation · Sec. 5(c)(iv)
Not published per project.
Not published
4. Contract award
Notice of Award (PhilGEPS) · Sec. 5(d)
DEPARTMENT OF EDUCATION - DIVISION OF ILOCOS SUR awarded it to M.A. TEJADA CONSTRUCTION on 2012-02-06.
Found
Open
5. Contract & progress
Contract / progress report (DPWH) · Sec. 5(d)
No matching DPWH contract record (only DPWH contracts are listed with progress).
Not published
6. Payment
Disbursement voucher · Sec. 5(c)(viii)
Not published. No public source shows how much of this contract has been paid.
Not published
7. Completion
Certificate of completion · Sec. 5(d)
No completion certificate published.
Not published
8. Audit
COA 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

Demo

Edit the amount as if someone quietly changed the record. Your browser re-hashes it and walks up the chain. Nothing is saved.

Contract amount (₱)

1. Record fingerprint changed
stored cf468622f3…ac3a8dnow …
2. Block Merkle root changed
stored 48a84f52f1…5fd158now …
3. Block #1371 hash changed
stored 9de7d7046e…fdb087now …

Chain intact. The record matches its fingerprint, so the block and every block after it still line up.

Merkle proof (6 steps)

How this one record is tied to the block's Merkle root, without needing the other 56 records. Each step hashes the current value together with the sibling shown.

leaf cf468622f3fe968a2abda763906bdcb6a2d1ef47f3ec324aa11a8af50dac3a8d
01 L cb9d22ee4d4fb45e79d98b160651cafa519ec80e4d2f4901516890e8d88ad1bc
02 R 369d7b5258dde47fe05e0e5543d0ae2ee24cf03bf525a6e2106e9f7f72a6a297
03 R 203c3d9eae9e8ad601718920cf918a384dffbdea2da9f9d9032e37813a34c5b0
04 L d5463536a7a1f6fc4fa08703fbd320756d76c9ed1676d9066c0a43fff839e16b
05 R a4921e9104f50ca779d202947c90ac09380df793b36096544e26a995eb1d526e
06 L 694f8aa3dbb6aa4766f6a599e87b06773e99dd434a4f4c4dd67c3e7fedc278e1
root 48a84f52f152a8a25cb3809db218d6dccaf402907c7539077b34524c515fd158