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
MUNICIPALITY OF SAMAL, BATAAN Award a ₱30.0M contract to AS MACHA CONSTRUCTION AND TRADINGMunicipalities
Transaction hash:
71d461f6aef3e47b0065cea8d4e409ef34d7571e52b3e787d7cf5449b96bbe7b
Status:
Included and unchanged
Block:
#4,148 1,865 blocks after it
Position in block:
Transaction 122 of 249
Award day:
Jun 30, 2020 (6 yrs 4 mo ago)
Value:
₱29,962,474.97
Project:
Construction of Housing Units
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 #4,148 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)MUNICIPALITY OF SAMAL, BATAAN awarded it to AS MACHA CONSTRUCTION AND TRADING on 2020-06-30.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 Samal 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 71d461f6ae…6bbe7bnow …
- 2. Block Merkle root changedstored 8abce8a878…eb9c42now …
- 3. Block #4148 hash changedstored 034630ed48…b40a61now …
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 248 records. Each step hashes the current value together with the sibling shown.
- leaf 71d461f6aef3e47b0065cea8d4e409ef34d7571e52b3e787d7cf5449b96bbe7b
- 01 R 7279523d8f17832a47ac987c6856a7b644a712f5711d3f22abab9c0c708307d9
- 02 L d4ead0b0f716a2a11d14db1c160068da6c0395c4d10f7592d3ef0900277f1322
- 03 R 97e7ee48e4728dd3738547f347622b16e6ccefc1b02ebb5e58b88b5699b35711
- 04 L adfe15debbec79d328fb955f1ff751dc5569776b08c49876c3973439b8e58f93
- 05 L e41b7915c45848ee12999b608c987b7f3ed0ab2907d97d2ee5249936a97d5cef
- 06 L d01cc3ce1349d43abf2b3594d07f8f3a2c5a8104dbc51446a9620407e3d9a5e1
- 07 L 6913b3d14cdba04e7af03b5c983339947938306f5075de2b254813b04acc61b9
- 08 R 9234f8e355a2aa5970bf368e2e3d867e77f5876bf422387a58098ee949ad5105
- root 8abce8a8786a06b74b1b8da0dd6e98afc10188c7b101ec19483d9acccaeb9c42