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
F. G. CALDERON ELEMENTARY SCHOOL Award a ₱231.0K contract to SHERF BUILDERS CORPORATIONNational agencies
Transaction hash:
900d065c4e9a7d219f7403eacf141c9175a53263d8407f71632308a4e87baed3
Status:
Included and unchanged
Block:
#5,957 56 blocks after it
Position in block:
Transaction 161 of 274
Award day:
Sep 6, 2025 (1 yr 2 mo ago)
Value:
₱230,972.15
Project:
FLOORING 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 #5,957 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)F. G. CALDERON ELEMENTARY SCHOOL awarded it to SHERF BUILDERS CORPORATION on 2025-09-06.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)No COA finding linked to this contract.Not published
1 of 8 documents found, 0 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 900d065c4e…7baed3now …
- 2. Block Merkle root changedstored 67529375c5…8a5458now …
- 3. Block #5957 hash changedstored f88d1da274…7402b1now …
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 273 records. Each step hashes the current value together with the sibling shown.
- leaf 900d065c4e9a7d219f7403eacf141c9175a53263d8407f71632308a4e87baed3
- 01 L 8fdca0519aee2de62531d84b10768280d0b852b53642dc168da8da79371b6acd
- 02 R 6f5d37c18a10c23175b1628d4e427c4b86ecf596cb56a0cc88f4628681a8b154
- 03 R 586763f140dd63d2b35aac0b33982fb030513c1f7afb258a4dc04b70f1c5981e
- 04 R 7afe4b31e561971936cc6dc82ffdfbe06e20e2e647af5cb9ccaa89eae82cc22a
- 05 R 8f010856ee349e998424bdb7d925095f85989af618d0e2a685857f6643f651c4
- 06 L b2e7e2e2fd3ed746f5828e3b12734844ad7ff59de9324e6016851fba108b9c17
- 07 R dee2340fe6956c7ece8a734bfbb3d72adf89af37d84304071d5ed7d742b6690e
- 08 L 9cf0b7d5622a6d0abb1c767fc7ffec76ef1f0ca3b68525efaae88fc01d37898a
- 09 R 9fd0252e9987dc7fedb609267f0b523124e2ac9b60b9d70662f313361be1bafe
- root 67529375c504d34317c768e1be8af9dd09ff2b01f786eccf2d0800144c8a5458