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
DEPARTMENT OF PUBLIC WORKS AND HIGHWAYS - TARLAC 1ST DEO Award a ₱95.3M contract to BIG BERTHA CONSTRUCTION & DEVELOPMENTNational agencies
Transaction hash:
a7d862ccd28bd86512f731b5c5f6d3a3a5fdb694b9e026b179c10410691bd8a8
Status:
Included and unchanged
Block:
#5,883 130 blocks after it
Position in block:
Transaction 200 of 332
Award day:
Jun 18, 2025 (1 yr 4 mo ago)
Value:
₱95,342,846.46
Project:
25CJ0247
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 #5,883 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)DEPARTMENT OF PUBLIC WORKS AND HIGHWAYS - TARLAC 1ST DEO awarded it to BIG BERTHA CONSTRUCTION & DEVELOPMENT on 2025-06-18.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 a7d862ccd2…1bd8a8now …
- 2. Block Merkle root changedstored 71a4732f1f…6f526fnow …
- 3. Block #5883 hash changedstored fabe8dfc1c…a8b6cfnow …
Chain intact. The record matches its fingerprint, so the block and every block after it still line up.
Merkle proof (9 steps)
How this one record is tied to the block's Merkle root, without needing the other 331 records. Each step hashes the current value together with the sibling shown.
- leaf a7d862ccd28bd86512f731b5c5f6d3a3a5fdb694b9e026b179c10410691bd8a8
- 01 R a86cf380208b5808a1306d957be7ee0b6b8e218279acde49365bf48117c81093
- 02 R 0dde7612d833bdecc8f906cde20f49041c19fe245c7d0b9b9ed2561131f9e3a9
- 03 R d9c74183dfb62abe6d39323a7faf8c7c90fc623b0f84c9d1e06977f25b6ae022
- 04 L 336bdba71bd6e61bdbdc5e4dd9ae8c27dce575c21808510360b072ad05b697ef
- 05 R 8839b739716bf72c8d1a05cb74359c9f6c0a9e3144534627c5b85175a43fe11c
- 06 R 42b46241a44a15f7c8e4a0bf9e6cc35c3259708bc7e7b513b0d39ccf621e2d8a
- 07 L 492f4087df58caee97246b0a791a57b88b4a2a70c1b274f28b43c52923e7c494
- 08 L 725681290273935c3fcac57b5e7ba00116bdff657508476e6ecbcea4ab6b49f3
- 09 R 8ab29665f017ad826bd8d3f8d98b0b63792b82451b552edf99089e4b1d035162
- root 71a4732f1f0f712028c8a7a2ebea1a6a81236e88263fded27f78f504196f526f