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 ZAMBOANGA, ZAMBOANGA DEL SUR Award a ₱20.0M contract to YN BUILDERS AND SUPPLYCities
Transaction hash:
ea11d6b54dafae612c75bb2e947b23f81c195084997d9f226e302f9497b6040b
Status:
Included and unchanged
Block:
#5,841 172 blocks after it
Position in block:
Transaction 102 of 111
Award day:
May 2, 2025 (1 yr 6 mo ago)
Value:
₱19,995,000.00
Project:
Construction of Slope Protection at Recodo
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 #5,841 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 ZAMBOANGA, ZAMBOANGA DEL SUR awarded it to YN BUILDERS AND SUPPLY on 2025-05-02.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 Zamboanga 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 ea11d6b54d…b6040bnow …
- 2. Block Merkle root changedstored 6ef06018e8…c96dfcnow …
- 3. Block #5841 hash changedstored 9959375d22…74dc5bnow …
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 110 records. Each step hashes the current value together with the sibling shown.
- leaf ea11d6b54dafae612c75bb2e947b23f81c195084997d9f226e302f9497b6040b
- 01 R eb297cdc8945092190f64cae044ca14382e068e19052c4b1369c540fe512ac28
- 02 L f65ad18fe35a013a0935354823d3bd9acce2a10958026f1b0011b4da80ff5bd9
- 03 L 06b9846d925b4f36048e4e5efde0fc9ebd6b029e4c92854c83e691a867023953
- 04 R 35679a41c5c2d4500ce8ddd41cf8224f02535af41c7cf6232c2190a95040d9d1
- 05 R 5d240dbb324d660108a541f36f5ec468251acccdfe75e9e51c388636bcd50a6c
- 06 L ec6f7d3b95a748b7e6c015df939ff1aa7f9987fec12531bb4b3770b466d89fda
- 07 L 1f28f66e5adb9cca46ab45b562bba462f016b7d507573d14a49002f5ce6b0be3
- root 6ef06018e8feeba3a394edc61c16c449969cf1060db8ae8b737abc0438c96dfc