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 QUEZON Award a ₱5.9M contract to MATTRO CONSTRUCTIONCities
Transaction hash:
319d61decf48d652bf73c5d8e6b7068fd1a39d42bfda377ca063da56489f1a13
Status:
Included and unchanged
Block:
#3,711 2,302 blocks after it
Position in block:
Transaction 97 of 549
Award day:
Mar 18, 2019 (7 yrs 7 mo ago)
From:
Value:
₱5,891,449.48
Project:
19-4018
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 #3,711 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 QUEZON awarded it to MATTRO CONSTRUCTION on 2019-03-18.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 Quezon City gave a "unmodified" 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 319d61decf…9f1a13now …
- 2. Block Merkle root changedstored 17c0a4d51c…d1c242now …
- 3. Block #3711 hash changedstored d51df648cf…905a01now …
Chain intact. The record matches its fingerprint, so the block and every block after it still line up.
Merkle proof (10 steps)
How this one record is tied to the block's Merkle root, without needing the other 548 records. Each step hashes the current value together with the sibling shown.
- leaf 319d61decf48d652bf73c5d8e6b7068fd1a39d42bfda377ca063da56489f1a13
- 01 L 30dd32c123a83717ef2a8eac0fffb23a8cb5056b95af2cce643644b7954dd21c
- 02 R 4045cb2e1b9d2b61de6061ada2e920208173aaa7bab2bc7b43f7b076cd51693a
- 03 R dc874c813407673d2681557e3cc940ebac6db3a57e0fcc0ddf5ba5c0581c06cb
- 04 R 9b9a01177507d81714eca99e6fed814216903e975e035082cf9ed7909195de63
- 05 R 76cc1d7132ebbeeb975d463fe7420fbc7ec6e56e8ece198ea82fac8df65f024d
- 06 L a73eaed34ab5bd21f32a624734b3f110fd4b1857a0ec3734f9b2db83660277fe
- 07 L a834fb2c382390859df54cda90c7772f11029e6ab5a2e1f10ff39242ad57e7e4
- 08 R f07c4449eb2e9f08c798a8746b6ecbfbf14695d52dfe8980bb6995a7cf9c022e
- 09 R f277f88e5944d3f6b1221d6c711806d984c6e69b707e10f1f48546afe9babe17
- 10 R 35321fcfaf8c7c3d0dc499546a1b997c233216add8627bbe5f09dc20bab4510e
- root 17c0a4d51c0a90325e960f9cd0a3f3e4319115d92c0f0b4a717590879fd1c242