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 ₱1.4M contract to DAVID DALE CONSTRUCTIONCities
Transaction hash:
1723f7fb70bdffbdba08673c9975c5effe28bd7574f0e6fecffc0ce574c35a29
Status:
Included and unchanged
Block:
#3,132 2,881 blocks after it
Position in block:
Transaction 28 of 273
Award day:
Jul 14, 2017 (9 yrs 4 mo ago)
Value:
₱1,406,537.65
Project:
Improvement of Farm-to-Market Road at Limaong
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 #3,132 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 DAVID DALE CONSTRUCTION on 2017-07-14.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 1723f7fb70…c35a29now …
- 2. Block Merkle root changedstored 0e41bf38cb…a31cf2now …
- 3. Block #3132 hash changedstored 7e0510c584…1f12d4now …
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 272 records. Each step hashes the current value together with the sibling shown.
- leaf 1723f7fb70bdffbdba08673c9975c5effe28bd7574f0e6fecffc0ce574c35a29
- 01 R 17500392d7b99bda187580bbb57b2e04229d0f14d4380afc36fc7ba0c0524325
- 02 R 7f469393d75fe333250b5347773cf0f53d17f79c14c3c9a6cadba88ad86e466c
- 03 L 26bd952b55da359ad12b7efdb6ab07db52ea871bfdb52cf3bb811073872e9c7d
- 04 L be92d42431aff16a531fae51db3067e81e7f76fae31dfe685d76d0dcbe958688
- 05 L e403f48bb88f373a490fde5bd9f1dd24584c086d63a3ec2bf72c2d8ec0e5335b
- 06 R ef2a0a1b6b6c1ea36e754a692ff342959df26b5c7027945a7172e8cad6993849
- 07 R 85e979b49af2733cdd5beeaffb856d96158a69b72827d3373bce3f1c1a97dc09
- 08 R ec061a32038b4792557c223ca5e543407a6f3716082ec9f4f86464e97c5c5fba
- 09 R 81e6f3667b2acbb50c314659344f1687f65b5f1bd4bb721d1b164fc812a2bb0d
- root 0e41bf38cb33dfca5d988a19d8af01536d65184b29025fc338b5f47cbea31cf2