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 LAS PIÑAS Award a ₱4.4M contract to MANGELESE CONSTRUCTION CORPORATIONCities
Transaction hash:
b89f4e58eb3d69ef83acce8f54fda175cf5bf4f1bd2cbaf7a6f8ef25c5c450ba
Status:
Included and unchanged
Block:
#4,999 1,014 blocks after it
Position in block:
Transaction 194 of 291
Award day:
Dec 7, 2022 (3 yrs 11 mo ago)
From:
Value:
₱4,390,055.00
Project:
Upgrading of Roads and Drainage
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 #4,999 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 LAS PIÑAS awarded it to MANGELESE CONSTRUCTION CORPORATION on 2022-12-07.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 Las Piñas 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 b89f4e58eb…c450banow …
- 2. Block Merkle root changedstored 7fe78da63e…170b98now …
- 3. Block #4999 hash changedstored becd449d8b…a96e25now …
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 290 records. Each step hashes the current value together with the sibling shown.
- leaf b89f4e58eb3d69ef83acce8f54fda175cf5bf4f1bd2cbaf7a6f8ef25c5c450ba
- 01 R b8b0df5ffb14367f03cd7a5b7a19951e2ad20f2aa260f6230c1a0c842dd8e646
- 02 L b24816eb02525be8ff8c33d5f5355837eb8409ce6374dfb0ce9f229d838831ab
- 03 R 1e1e9922282c815bb5b0cc9b4ce636612ae3f8c463c19eaf42d0d3448f5d5857
- 04 R 5d0b4ffd367b2b209bf097a73642dd6bc58ad34293aab22e4e9b653ab16c8723
- 05 R b0fda0391a2f448d65d083636e4235e1284c85aa20043def23779a491998d1f4
- 06 R d6e84c440e23009164ae19591136192bd3d5f17403f55392d19364990cc13617
- 07 L 1ef303e71c7256bda40552a29bd7e6daa83c4546e7df133e1fde7f3ad2cd29f6
- 08 L ad80382c6b5ac331749cc8b0c2fedff88f861998fb9779c90ce0eda7950d9773
- 09 R 2677d738f82b57c32f6ab4cbc5046da5d92e767d7b629e62bc660edd301476f6
- root 7fe78da63ee8c963b63b6beb3de5fa2d268c3eed2245f0bca742cb510c170b98