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 BATANGAS Award a ₱499.4K contract to G.L. LUMBAN CONSTRUCTIONProvinces
Transaction hash:
5de06a115fc6ea0bed3de8862933d9d369adcc4f2ec41b762f509df244f7de3f
Status:
Included and unchanged
Block:
#4,646 1,367 blocks after it
Position in block:
Transaction 84 of 256
Award day:
Dec 1, 2021 (4 yrs 11 mo ago)
From:
Value:
₱499,409.07
Project:
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 #4,646 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 BATANGAS awarded it to G.L. LUMBAN CONSTRUCTION on 2021-12-01.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 Batangas gave a "not stated" 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 5de06a115f…f7de3fnow …
- 2. Block Merkle root changedstored 7ef33ff58b…46b390now …
- 3. Block #4646 hash changedstored 1697a4fbe7…6bad1enow …
Chain intact. The record matches its fingerprint, so the block and every block after it still line up.
Merkle proof (8 steps)
How this one record is tied to the block's Merkle root, without needing the other 255 records. Each step hashes the current value together with the sibling shown.
- leaf 5de06a115fc6ea0bed3de8862933d9d369adcc4f2ec41b762f509df244f7de3f
- 01 R 5e1c60d0563ac16e358d379e90ad64d9a0571134b86fdde22406e63bc3a30453
- 02 R 24ea041821f160b75dc3b0b894aa9b67c9d5986c5fa8404cad8db8592fae08c5
- 03 L 39b4f3d2000867222238343d551724ff80b0776ea3a73bf59eb826f8004a7ace
- 04 R ad26817211625f38957d99f61c6c40021559d3377d36e59d1a669407e24943aa
- 05 L f37f8bfc4c30c36c93e348cb23f1f062ed71343d9223a0ac8dba10831763fa92
- 06 R 818e31a5a0ef0ec4a07b3ae7fd0832fd9bb02fd2b180d49f0f1ee52e28e61685
- 07 L 1327278b5277950212731b6df8ef89edef24cd53bc0afb2fd1e4deba53b2d8f9
- 08 R 648f88b54c1d559a866bca445f83d57f1f851b978fb8d7aa3f099cfc129ac472
- root 7ef33ff58bea2fda55e30b925214eeecc2c1d9965b07ca0d9a579dbbb446b390