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
TAPIA ELEMENTARY SCHOOL - TANAUAN CITY, BATANGAS Award a ₱67.2K contract to AED BUILDERS CORP.National agencies
Transaction hash:
a2c05f378878b52befc2f8239938d8d062afb5ab067d043e6c0d14ce1c817c41
Status:
Included and unchanged
Block:
#5,994 19 blocks after it
Position in block:
Transaction 217 of 352
Award day:
Nov 6, 2025 (1 yr ago)
Value:
₱67,230.00
Project:
Construction Supplies and Materials
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 #5,994 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)TAPIA ELEMENTARY SCHOOL - TANAUAN CITY, BATANGAS awarded it to AED BUILDERS CORP. on 2025-11-06.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 a2c05f3788…817c41now …
- 2. Block Merkle root changedstored cd410a5666…65c27anow …
- 3. Block #5994 hash changedstored 1af390920f…3800c5now …
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 351 records. Each step hashes the current value together with the sibling shown.
- leaf a2c05f378878b52befc2f8239938d8d062afb5ab067d043e6c0d14ce1c817c41
- 01 L a22ed868233a5694a982a798d4dddb028764b735bbb3945c2380858347f502be
- 02 R bb9036f10bc9408755a749fd44b0bfc32c52a2f76fd1bf79f8c1eb2b14f7bb30
- 03 R 31de25b1d0da32a843683704784ed5af1b19750f30c9e1774f93021292c5ceb9
- 04 L df17bea976aea765eaacb05c73a1bf0fc52b8f2576b80928beb1240d0f334b6f
- 05 L 737f394ed4c27ba73f37b2f673f4cae8e6f4ef7fd6b02fa20cee85e38fbe6c27
- 06 R 4dc2bc73c2d2008e1044e71980e733760b710769bac11b49ea85ddef1e124140
- 07 L 917ea3e81f3ace620cd06ce8ff1df39f059db1afbb37b72ffbbe3724b0c0a356
- 08 L eb753c508bfd10cfe166b03beb7d7d909fd5ff399740c2c8fa418a41154fd0c3
- 09 R 212c8e5456cb676a9d73787e92454b274d15202e6275c8cc87480daafcdc2aac
- root cd410a5666ae6f726c5a1ae3465f8ff76de70299ecfd9eef2fa82ec3de65c27a