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 ZAMBOANGA, ZAMBOANGA DEL SUR Award a ₱494.5K contract to THOM-ARMAN CONSTRUCTION-ZAMBOANGA CITY BRANCHCities
Transaction hash:
8a3dbba2d5e4298481e984a21340786cd1f9025199305b72f5fb180cb5261f03
Status:
Included and unchanged
Block:
#444 5,569 blocks after it
Position in block:
Transaction 8 of 17
Award day:
Oct 9, 2008 (18 yrs 1 mo ago)
Value:
₱494,470.10
Project:
Improvement of Farm-to-Market Road at Guisao - Dalanitan - Catumbal Road, Guisao Road (REVISED)
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 #444 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 ZAMBOANGA, ZAMBOANGA DEL SUR awarded it to THOM-ARMAN CONSTRUCTION-ZAMBOANGA CITY BRANCH on 2008-10-09.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 Zamboanga 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 8a3dbba2d5…261f03now …
- 2. Block Merkle root changedstored fe38b8e5e3…21239bnow …
- 3. Block #444 hash changedstored 8156ff18ea…e42f5enow …
Chain intact. The record matches its fingerprint, so the block and every block after it still line up.
Merkle proof (5 steps)
How this one record is tied to the block's Merkle root, without needing the other 16 records. Each step hashes the current value together with the sibling shown.
- leaf 8a3dbba2d5e4298481e984a21340786cd1f9025199305b72f5fb180cb5261f03
- 01 R 917888d41d54c61bf7e332d4899ce7818f968fcba6e54eed40d072f5d5559c5c
- 02 R dbd84e451573c9560d817191823da8df6fe5360149ac6d1d29593ca212ac691a
- 03 R 16428fe9d3237e1937d8c797a3b2b46b7404a0212f5e26f25bc7a061ce2ee820
- 04 L 0da24f96f4f66f61cdea4b295a0a2d955e5720a9a5662b06a10aa7740fec4f82
- 05 R b48fea62ef8acac42f858fe15df52bbb602247773a435e2120ab005f58655fd9
- root fe38b8e5e3a46da5d3fdf22368afa4bc7173bdd0515d14482d2792572e21239b