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 MANDALUYONG Award a ₱13.4M contract to ALEXA TRADING AND CONSTRUCTIONCities
Transaction hash:
cf73bdd08d3d0bf25c497dff54226c5dea37bb567ba0fa6cba51baa6d6cb7db5
Status:
Included and unchanged
Block:
#3,683 2,330 blocks after it
Position in block:
Transaction 303 of 385
Award day:
Feb 18, 2019 (7 yrs 8 mo ago)
From:
Value:
₱13,378,942.00
Project:
Drainage & Street Improvement
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 #3,683 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 MANDALUYONG awarded it to ALEXA TRADING AND CONSTRUCTION on 2019-02-18.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 Mandaluyong 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 cf73bdd08d…cb7db5now …
- 2. Block Merkle root changedstored c695e241da…5a64a5now …
- 3. Block #3683 hash changedstored ba3fb84601…810b50now …
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 384 records. Each step hashes the current value together with the sibling shown.
- leaf cf73bdd08d3d0bf25c497dff54226c5dea37bb567ba0fa6cba51baa6d6cb7db5
- 01 L cf618056205357148251afee8e97935de843e2217511f4e9129eb5478d72a1e4
- 02 L c7bdbe9f0d4c9fbb68bc4168b77c0b1193b99c090db8ad1919ff9045536e5115
- 03 L 30a4d2ca9fb9f500e787659fa2b18f2bd4b1cba1c75fdbc91016fddb786e8e70
- 04 L 2ea4790513ec15b86396b36022385d112a746f7da0cd8a4bab7c90ca84060f2e
- 05 R 8e2ac37321987966bf4f25c99ece9858a00d931ee452924e1ab4398072926cb2
- 06 L 461fe8407a69310604749af60aaf217c980e3d63be2cc82cb92d0b4fcaa6f2ee
- 07 R 8cadf82e545b25f47261f7524116ff6f6e9bd3dd174fa0719fe1db180646bc73
- 08 R 7b83118698bc2a15b31f32ae86e903c070ab10dae4d93a855c2fd5d0fc112b69
- 09 L 30574f9d2f97640d3e0027c17cf73bde4fdf6ecf8ea9e91c5fda4dae4bfc3f5c
- root c695e241da2bd65e3d9263f73c0a181fce45b8a8de25d2d4fb9400c9785a64a5