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 ₱6.3M contract to MANGELESE CONSTRUCTION CORPORATIONCities
Transaction hash:
ba98d01d1efbfd5a96a32bb22eddd495d6f4604bf621ecfc70de7f29d76b6c7d
Status:
Included and unchanged
Block:
#5,799 214 blocks after it
Position in block:
Transaction 962 of 1,308
Award day:
Mar 13, 2025 (1 yr 8 mo ago)
From:
Value:
₱6,298,289.00
Project:
Installation of Streetlights
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 #5,799 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 2025-03-13.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 ba98d01d1e…6b6c7dnow …
- 2. Block Merkle root changedstored 32976f43d5…bd9f32now …
- 3. Block #5799 hash changedstored c1f58e8366…1eb2e1now …
Chain intact. The record matches its fingerprint, so the block and every block after it still line up.
Merkle proof (11 steps)
How this one record is tied to the block's Merkle root, without needing the other 1,307 records. Each step hashes the current value together with the sibling shown.
- leaf ba98d01d1efbfd5a96a32bb22eddd495d6f4604bf621ecfc70de7f29d76b6c7d
- 01 R bac1720197b395dc01cd3e26609f23b2eb9e31a76fbcd550015419563185d777
- 02 L 855595349647490f326319b9e41861708022f9ddcef0e95249fcdb6da47d689a
- 03 R 10b5a1e690834258b88089bedf6c6da80c18598bb8f0624ce72c5f5750cfb2fa
- 04 R 9451d7d41b012f4470c14453cbe30c42ed7ae433db02ae5996457e31abfc9b44
- 05 R e5765b295ca31bc1e825fba9a3ef66f3722f84f101cb4005675cb3b676eadb16
- 06 R e2051bae3690b63696e919eed6fff010d4889dc135764e9c1a4fa69e0d97e713
- 07 L c67024f0162eefca647caf67825caa07376bb6ddebcdcff4e68b1efdb2eb92f1
- 08 L 26db5e39fc4874f19cf1227eeea6700b99148ac9437895c1a2e84cf574c04541
- 09 L e1c111ad9a16766dbca9641c4dc15c170e440fe7152c44fa738c432a318ef7dd
- 10 L 4ac15a6aa202ff9e783aa1fac16ae76d069e46e9d67409511f8a4ecaadba70e8
- 11 R cbed0a46b15022dd2637646d347d31eaa5ef9907d7a7ef3f66a1f70c3e431135
- root 32976f43d537ee94c5f0a62ff43aef274595e5c6ecd09fca4da5e3f5c0bd9f32