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
MUNICIPALITY OF SAN NICOLAS, BATANGAS Award a ₱236.1K contract to L. ALVAREZ CONSTRUCTION AND SUPPLYMunicipalities
Transaction hash:
8b736b2a9df7b02fd69a630c24de32ae3c3e92bf6efdc50bcd1d9313da8305ce
Status:
Included and unchanged
Block:
#1,844 4,169 blocks after it
Position in block:
Transaction 96 of 184
Award day:
Aug 27, 2013 (13 yrs 2 mo ago)
Value:
₱236,125.00
Project:
Widening of Barangay Road
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 #1,844 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)MUNICIPALITY OF SAN NICOLAS, BATANGAS awarded it to L. ALVAREZ CONSTRUCTION AND SUPPLY on 2013-08-27.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 San Nicolas gave a "not stated" 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 8b736b2a9d…8305cenow …
- 2. Block Merkle root changedstored 5a90255395…4fb918now …
- 3. Block #1844 hash changedstored 421aec233c…6341denow …
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 183 records. Each step hashes the current value together with the sibling shown.
- leaf 8b736b2a9df7b02fd69a630c24de32ae3c3e92bf6efdc50bcd1d9313da8305ce
- 01 R 8ba759790fb9ec6bb4f04417ca9bf61ea9e42d25fb1a0d24343f74259b1598b1
- 02 R 86887221ed240edcc1cc5cc07281d0f945756df67f188f874b20f2747870a992
- 03 R 8a57777b34e8c36fe97d093b629d906b598ca68ad488b50413e0488ed39db20a
- 04 R 6f311e3997e0208b59766bb6213900a9027a6006ed3228383eb83275584bbe0a
- 05 R c9fcd84074effc6c7ba9049e78555063d4705ee4b19a4ff1f7518d528e0047fa
- 06 L c1568b9da2ad42075f014a15271e74f3e74d44e79a5c9c70dfb0276855adf6ad
- 07 L 43a67f07d8ef9060da0db2d2062a60d2c82e23ab1972864a6ff45e914bbe30c1
- 08 R f60d1791fdb81479d8c9ad162a44ea0683f40b29a71fb5e2d17063aca054d28e
- root 5a90255395098a3b82ed2aa400d1862c3a10dcd58b18a65978749f08c04fb918