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 GOVERNMENT OF CALAPAN Award a ₱2.0M contract to L.N SALVADOR CONSTRUCTION CORP.Cities
Transaction hash:
b31683fd4e9f2dfa12548c6dc385bb80d2a25774957c24d54716ee15f2d4e8b0
Status:
Included and unchanged
Block:
#5,015 998 blocks after it
Position in block:
Transaction 214 of 305
Award day:
Dec 23, 2022 (3 yrs 10 mo ago)
Value:
₱1,996,016.80
Project:
construction of apartment type nitch new calapan
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 #5,015 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 GOVERNMENT OF CALAPAN awarded it to L.N SALVADOR CONSTRUCTION CORP. on 2022-12-23.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 Calapan 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 b31683fd4e…d4e8b0now …
- 2. Block Merkle root changedstored cf78763a6c…ae54c9now …
- 3. Block #5015 hash changedstored be34ee0179…f443d7now …
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 304 records. Each step hashes the current value together with the sibling shown.
- leaf b31683fd4e9f2dfa12548c6dc385bb80d2a25774957c24d54716ee15f2d4e8b0
- 01 R b328a464136cd5d5ad234f8d3c792ce8257774f3df19c5e74fd351841fa9205e
- 02 L ee61db464da1482d817d13c14f68e628b1b4e873089b71908c78ee5676f5a4d9
- 03 L 2aebd0fc5ee628014b7b973701c59c16d9b292a5a71e6fa88a70bbec1ecfbc49
- 04 R 806beb5b7c4da8fe6771af5f399571db012f96351051209c4ec2766305d974af
- 05 L 913cc881ca9ee26f2903a9433ff440c9bfaeb1ed5322cb90c095157a6da5203f
- 06 R 802ce58b63b7a284575fb61783ad44279f2d40844ef65e9b1aa26d69aff6cb01
- 07 L e204fefd334bde4ed3cf7e6d905733c8e63b21d522946d566f196cb93e4c637c
- 08 L 37416cd8259316ec46101df65c096ecce41cdadbdb872c07d77a8250be821f7e
- 09 R bb10e31cd682d68840d81117c9a93fda03189c3dc08ba4a1bbdb637936337f2a
- root cf78763a6cc784150afc082b5623a50a9d971e7cf1da5d128ee3163c24ae54c9