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
CITY OF SANTIAGO, ISABELA Award a ₱254.8K contract to R.T. ALVAREZ CONSTRUCTIONCities
Transaction hash:
cd84cc5f37f6fc2271fda311b452b76fd00e2f8013095accfec67888b3c1d807
Status:
Included and unchanged
Block:
#1,466 4,547 blocks after it
Position in block:
Transaction 66 of 82
Award day:
May 28, 2012 (14 yrs 5 mo ago)
Value:
₱254,762.09
Project:
Concrete Works
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 #1,466 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)CITY OF SANTIAGO, ISABELA awarded it to R.T. ALVAREZ CONSTRUCTION on 2012-05-28.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)COA's CY2024 audit of City of Santiago gave a "qualified" opinion on its financial statements (not specific to this contract).Partly
1 of 8 documents found, 1 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 cd84cc5f37…c1d807now …
- 2. Block Merkle root changedstored 0bddc597b8…f1bf48now …
- 3. Block #1466 hash changedstored 16719f9572…5d7df2now …
Chain intact. The record matches its fingerprint, so the block and every block after it still line up.
Merkle proof (7 steps)
How this one record is tied to the block's Merkle root, without needing the other 81 records. Each step hashes the current value together with the sibling shown.
- leaf cd84cc5f37f6fc2271fda311b452b76fd00e2f8013095accfec67888b3c1d807
- 01 R d6f5f3e7b46bfae386bb88acdbf9bdac27e849d46a1343dccfe1233d69a2178a
- 02 L 25be06468ef8642c3c757948933acc891497adc99ff16cb42d14c315380f93a0
- 03 R 3d7bb9f073875d470852912a2075a8ab1e1e337961a8ba7da2068975a47c1546
- 04 R 874142c5a2a80ec73828b79cb7e6c4908518064d9347815ecc43b7df8d7e5b6c
- 05 R 03686f771b678b9a9080464f786a661693913f39e11b63e628e64e665a3438a6
- 06 R d816ff331a21ad19050de3c9f577c6bdb6e269f3022d4153a611fa762385ece8
- 07 L 3c0ff19b1dd5a40fda54659cc1d0d4a44817b3477f9d962e591fc8da593ab4ee
- root 0bddc597b8585acfabe30cad7e0de358c0699128cf66c87dc8b4502d25f1bf48