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 TANZA, CAVITE Award a ₱2.0M contract to N&J CONSTRUCTION AND SUPPLYMunicipalities
Transaction hash:
2464da1f4713eeaa9844946b2b10110ab0c5b2ec53efffc72915a9cc401a397c
Status:
Included and unchanged
Block:
#4,116 1,897 blocks after it
Position in block:
Transaction 18 of 105
Award day:
May 28, 2020 (6 yrs 5 mo ago)
Value:
₱1,997,652.01
Project:
Construction Project
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 #4,116 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 TANZA, CAVITE awarded it to N&J CONSTRUCTION AND SUPPLY on 2020-05-28.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 Tanza 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 2464da1f47…1a397cnow …
- 2. Block Merkle root changedstored 72bd75766e…f757b8now …
- 3. Block #4116 hash changedstored efb5d796a4…20cbbanow …
Chain intact. The record matches its fingerprint, so the block and every block after it still line up.
Merkle proof (7 steps)
How this one record is tied to the block's Merkle root, without needing the other 104 records. Each step hashes the current value together with the sibling shown.
- leaf 2464da1f4713eeaa9844946b2b10110ab0c5b2ec53efffc72915a9cc401a397c
- 01 R 24e430e51d3e40619c4867e9a5b65fd3a34acc8909321d3c77dd4e6199926fdb
- 02 L 7b5319a2f88bc703487e495621b180fe0e9143c6f376ad5b7222a609975707f1
- 03 R b3813fcfbc861a30d71acf8b909a0693fdf2085f4a959ba9b0cd016ba77e9db0
- 04 R 7433fbd5ae76466565ea1f05f0b58a0d58337d7b1840c400ae50b201a4808744
- 05 L c675c7fc8f0efd972154e99c7da3e1ed69859a705dadd1436da29c2eb39a9bd3
- 06 R 8a8b4da6a02fbd2d42b2ef210652a891e6907a137b02b9cc64e96927eea0492a
- 07 R a1c463acbffd84c0da2acd969fd2d23c0cd6c484faa2f9060ce2097a645edc12
- root 72bd75766e836ec810614663a70d85d5e4857c6e39248f94c5582daab6f757b8