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

CITY OF TANAUAN, BATANGAS Award a ₱992.0K contract to C. CASTILLO CONSTRUCTIONCities

Transaction hash:

e8d46109c536dcfb68fa7cf788d209690d0a516206f02b6b571190cb441726b4

Status:

Included and unchanged

Block:

#2,427 3,586 blocks after it

Position in block:

Transaction 134 of 150

Award day:

Jun 8, 2015 (11 yrs 5 mo ago)

From:

CITY OF TANAUAN, BATANGAS

To:

C. CASTILLO CONSTRUCTION

Value:

₱992,000.00

Project:

Infra Projects 2015(2nd qtr.)

Full record:

Open the award page

Accountability

Bill Sec. 3 and 19

Responsible agency:

CITY OF TANAUAN, BATANGAS

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 #2,427 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)
CITY OF TANAUAN, BATANGAS awarded it to C. CASTILLO CONSTRUCTION on 2015-06-08.
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)
COA's CY2024 audit of City of Tanauan gave a "qualified" opinion on its financial statements (not specific to this contract).
Partly
Open

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

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 e8d46109c5…1726b4now …
2. Block Merkle root changed
stored 7c4c48b137…9e5104now …
3. Block #2427 hash changed
stored 6d775f7c9a…cacfc7now …

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

leaf e8d46109c536dcfb68fa7cf788d209690d0a516206f02b6b571190cb441726b4
01 R e8e0de7a91300fbe23f0711f327a3bad7391e9e5e8c8b9154084f1c89f565121
02 L 7053dd7d6a5cbe7d98edb31eb282fcfe7269283331c3c3c8bd5c342c07672da8
03 L 8695e7e4c21f500ea92b6bef3f14682897aa35adb1d10e510d45ec4ea2ed27c3
04 R 81e83ba24ef6220b54b3f2834f1593eabb2b50c1f3793322afa4dec3fc6a760c
05 R 040325cb88b5a59c95fbbf472e7e0cd62359bc1d8f88ca4087c6a03bfff2bc1a
06 R 08da26515081e332e212fb77153f115d17705c80f775a0b1467a0a7298833fa9
07 R f4625a6a9be36c0290bafd7cc8d516ff671049424685e69368536214d51b6798
08 L c46d44f2d1bce9bd89692044fd0a7dc5848e0cdba93a76dfcf971be983817314
root 7c4c48b13756a2967cd8c22f67fca798c8cab57caa90badc5264c9a8569e5104