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 PUBLIC WORKS AND HIGHWAYS - BILIRAN ED Award a ₱57.0M contract to YAKAL CONSTRUCTIONNational agencies

Transaction hash:

db520f0d8be5b7bc13d2704f687c28528b85fc325abcc2b65d6f3f7f928a003b

Status:

Included and unchanged

Block:

#3,150 2,863 blocks after it

Position in block:

Transaction 137 of 167

Award day:

Aug 1, 2017 (9 yrs 3 mo ago)

From:

DEPARTMENT OF PUBLIC WORKS AND HIGHWAYS - BILIRAN ED

To:

YAKAL CONSTRUCTION

Value:

₱57,000,100.99

Project:

17IA0077 Construction of Road Slope Protection St

Full record:

Open the award page

Accountability

Bill Sec. 3 and 19

Responsible agency:

DEPARTMENT OF PUBLIC WORKS AND HIGHWAYS - BILIRAN ED

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 #3,150 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)
DPWH lists the funding source as "Regular Infra - GAA 2017 MFO-1", i.e. the FY2017 GAA. The exact UACS line is not given.
Partly
Open
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 PUBLIC WORKS AND HIGHWAYS - BILIRAN ED awarded it to YAKAL CONSTRUCTION on 2017-08-01.
Found
Open
5. Contract & progress
Contract / progress report (DPWH) · Sec. 5(d)
DPWH contract 17IA0077: Completed, 100% physical progress.
Found
Open
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)
DPWH marks the contract "Completed" (end 2022-06-01). The certificate itself is not published.
Partly
8. Audit
COA annual audit report · Sec. 5(e)(iii)
No COA finding linked to this contract.
Not published

2 of 8 documents found, 2 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 db520f0d8b…8a003bnow …
2. Block Merkle root changed
stored 6c56a0ee8d…a407f8now …
3. Block #3150 hash changed
stored a5b314c995…f3f8b5now …

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 166 records. Each step hashes the current value together with the sibling shown.

leaf db520f0d8be5b7bc13d2704f687c28528b85fc325abcc2b65d6f3f7f928a003b
01 L d5f1a446bc4e9f3a9f4b8f7bbc7383e7bbb4a999618d5d984bef54c54c68f4f2
02 R 1618b8f7b086946341bcebd154ced546ec4f33de988af668eb933078fcb1e2b0
03 R 32f5e5b18df9adcd49dacb07cdd5d16b46b0f0b48395b05d9a185110d4fc6e9b
04 L 69fba61662caa106237e39452b9b10c42e5e420abe27f41605c203a380221cb9
05 R 29b982a6caa2df3360eea09b3e722b02a62ac8c25aac2cc5762639f1e0bfe8bd
06 R 9409ffa005bc93ccfdf27af1567c696ff8cf24f727b7079f7ca3024cb9835242
07 R 81c642cf9f129f923c3921f6f262a7ae92bacc0e57c9244884f6658d4b70be3d
08 L a4e2dd95020f6e792f206638dc6cacd425793d2c62b985795e86d863bdcdeee6
root 6c56a0ee8de6cf9387c25f8834d02b09e39ab7552a36c17a4d1dd15119a407f8