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
PROVINCE OF QUEZON Award a ₱3.5M contract to ADAD ENGINEERING SERVICES AND SUPPLYProvinces
Transaction hash:
741dafaacd34cf515fd2c29084c5c3a9ee4ad5630bbe148b0173fcb1b3b779bf
Status:
Included and unchanged
Block:
#3,338 2,675 blocks after it
Position in block:
Transaction 200 of 452
Award day:
Feb 19, 2018 (8 yrs 8 mo ago)
From:
Value:
₱3,520,533.45
Project:
Construction Materials and Civil Works
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 #3,338 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)PROVINCE OF QUEZON awarded it to ADAD ENGINEERING SERVICES AND SUPPLY on 2018-02-19.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 Quezon 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 741dafaacd…b779bfnow …
- 2. Block Merkle root changedstored 0f1961e09d…0e3b27now …
- 3. Block #3338 hash changedstored 961e164f6e…ca30bdnow …
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 451 records. Each step hashes the current value together with the sibling shown.
- leaf 741dafaacd34cf515fd2c29084c5c3a9ee4ad5630bbe148b0173fcb1b3b779bf
- 01 R 749c5eb1ba2c6e08dfe1b5836fa59d5f0d3f0377c4359707da718214123295b1
- 02 R ff39a5f8fa3fd65487bef45bdd09b95d97286bab900b914ce0459a58ced8e01e
- 03 R 4efdf73a6f7711d7d23e49f2c03419ed0501ca443bd04a37be83b8165cb057ea
- 04 L 20cc7704c1f0610225d1cbaaa3d9a7689ea0004c50a1c923ef26174927b2ae08
- 05 R 26c78038657157e63186d484eccf77cbed575a5baa155e6fd0b2932173f87837
- 06 R 7ed7d73cea41e1658e62a556ff27cb6bda5af080e98c8e61163b1e220a188807
- 07 L eea7e3f0be95df1d31fe5a0730f0cbc1f8968c9cadc0536b88fa3d1c37c5a37f
- 08 L 7ba5c83d06549f33bf4d8291acdd8ca1a70b4a156179437902f1b1938926ec6c
- 09 R c206a0ae913a7141e10303f9daa31006cbe5e831081c4a1538fd9d1435432ae7
- root 0f1961e09d8869b403279569077dfc10f59b4beecacf5451d5642feeb80e3b27