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 OF CALAMBA, LAGUNA Award a ₱387.5K contract to TRI-DOM TRADING AND CONSTRUCTIONCities
Transaction hash:
0f4a53fe8fba685ec6f69f1120e9a8cecd5da3d05271b4c7c36a6f57238f5c57
Status:
Included and unchanged
Block:
#83 5,930 blocks after it
Position in block:
Transaction 0 of 54
Award day:
Mar 27, 2007 (19 yrs 7 mo ago)
Value:
₱387,476.29
Project:
I-2007-023 Rip-rapping of Road Approach/Sitio Tibag, Barangay No. 2
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 #83 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 OF CALAMBA, LAGUNA awarded it to TRI-DOM TRADING AND CONSTRUCTION on 2007-03-27.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 Calamba gave a "qualified" 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 0f4a53fe8f…8f5c57now …
- 2. Block Merkle root changedstored 9abecf410f…ba85e2now …
- 3. Block #83 hash changedstored 6f7f4929b9…d106dcnow …
Chain intact. The record matches its fingerprint, so the block and every block after it still line up.
Merkle proof (6 steps)
How this one record is tied to the block's Merkle root, without needing the other 53 records. Each step hashes the current value together with the sibling shown.
- leaf 0f4a53fe8fba685ec6f69f1120e9a8cecd5da3d05271b4c7c36a6f57238f5c57
- 01 R 10d0b2a1ffab75575d8446bfef877a30fde95b2c4ba6eaf242510358bae7f3a0
- 02 R 5ec2f5a1bece852951afd5b7f9a83175108e627704cb0f7f71f4650ef7562f32
- 03 R ae776a8456deea73b3ef6db496acf98ca2a65ba1605a78f48bed959d5776d134
- 04 R 2d29bac43da01b6115b2cfbd95ed8159b658fc5da438715f9ea945fea462e5a8
- 05 R d9f7aa947f50a91bd1167624a6d2fc639ab6c3f6f9577f7bc2b7bb6c20478315
- 06 R ded79343bf15e07cca53e025c38345d346f97b9664d822b17d8afa6215c40b87
- root 9abecf410faa8520fac7921701aad1719afbbec6a37509d8a7e797fd48ba85e2