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
DEPARTMENT OF PUBLIC WORKS AND HIGHWAYS - DAVAO DEL SUR DIST Award a ₱16.6M contract to R.C. MELGAZO BUILDERSNational agencies
Transaction hash:
bb236ba4f39bf9bf4715fae206c236c99e952ee341b170bdbc19a960ab9bd0e4
Status:
Included and unchanged
Block:
#4,197 1,816 blocks after it
Position in block:
Transaction 103 of 151
Award day:
Aug 19, 2020 (6 yrs 2 mo ago)
Value:
₱16,586,912.82
Project:
20LD0130-NOA, NTP & Contract
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 #4,197 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)DPWH lists the funding source as "Outside Infra - GAA 2020 DepEd BEFF", i.e. the FY2020 GAA. The exact UACS line is not given.Partly
- 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)DEPARTMENT OF PUBLIC WORKS AND HIGHWAYS - DAVAO DEL SUR DIST awarded it to R.C. MELGAZO BUILDERS on 2020-08-19.Found
- 5. Contract & progressContract / progress report (DPWH) · Sec. 5(d)DPWH contract 20LD0130: Completed, 100% physical progress.Found
- 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)DPWH marks the contract "Completed" (end 2021-01-17). The certificate itself is not published.Partly
- 8. AuditCOA annual audit report · Sec. 5(e)(iii)No COA finding linked to this contract.Not published
2 of 8 documents found, 2 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 bb236ba4f3…9bd0e4now …
- 2. Block Merkle root changedstored cad136d2ed…417f34now …
- 3. Block #4197 hash changedstored b0d1fb3d57…81f983now …
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 150 records. Each step hashes the current value together with the sibling shown.
- leaf bb236ba4f39bf9bf4715fae206c236c99e952ee341b170bdbc19a960ab9bd0e4
- 01 L ba662d4436dc2a8386ea52ce77270c821ba899acc04e7c95d51c5771fd48bb40
- 02 L 6f53f5cfd47504e22c50a5cf77c7022bf33cef23a2aefd587fe1ea6f3a9b2cbd
- 03 L e4e12e40b6de40f4a76fb6bb32c0e87ad229e5bb5ac12a3a90bdeda57f8285a0
- 04 R 17f88931b7d71e4436aa2438c8893925f920bd8240a22ed4bb3c9b4dc8627b33
- 05 R bdcf446a95e89921062515fbae5f7d3f48f8fa74dc233b3ffd5282896d550b20
- 06 L ab2d89bb809fb2323809ae2347141f594eda5fb0f81355655680209432779a35
- 07 L 7689d783ca5c83dff15aa346b50b7bb2cba8ff895de65d2160255300227d5855
- 08 R 91dc842a264278f9f831eb70c286f19b0cb2cdbcd93af450009e520edca4578b
- root cad136d2eda3dada2f1f07e6c7bece349951aef3492d28870f341ba225417f34