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 ₱498.8K contract to WIL TAN CONSTRUCTIONCities
Transaction hash:
c47cbfd0a2f21294140ecf137655d7d435ec053b66b271aea15f17c9ee0cd4e0
Status:
Included and unchanged
Block:
#496 5,517 blocks after it
Position in block:
Transaction 59 of 76
Award day:
Dec 18, 2008 (17 yrs 10 mo ago)
Value:
₱498,765.80
Project:
Rehabilitation of School Building at Pangulayan Elementary School, Tolosa
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 #496 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 WIL TAN CONSTRUCTION on 2008-12-18.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)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 c47cbfd0a2…0cd4e0now …
- 2. Block Merkle root changedstored 7de5f444a2…3ebb65now …
- 3. Block #496 hash changedstored d9d6118b2c…5af91bnow …
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 75 records. Each step hashes the current value together with the sibling shown.
- leaf c47cbfd0a2f21294140ecf137655d7d435ec053b66b271aea15f17c9ee0cd4e0
- 01 L c2dd066f2c8b297a60d37c58b30247a2380d878f3f0f1bd177ca2dc910ee3722
- 02 L 5593ba603262606b53e548f7f9966dc3a1d449c59bb41953fa08479d7e260da3
- 03 R 9d2ffc82aa46b9aab374eec5bc07e4575d2fe07ad6c478f6de8d06c3fbc806c9
- 04 L 667746822f1aea7079451314e40cfaa38acc24ab790d2a68bf5a6e7cba3cbbbf
- 05 L 6e49350d750c67fd23644074be88acf651ea097cb18f3f66e6a4a107a2e99177
- 06 L 43fde99018fb9971ed073eb53c498a919e0dfe757efd114c735275463c09299c
- 07 R 336a3fad873b3e3513fee1b2139c119f593376266544916d421f97654aba70c5
- root 7de5f444a217567e89c5391e64b6c15a81d2a39984f0e829c32acc5e103ebb65