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 TAGUIG Award a ₱4.9M contract to PERRC CONSTRUCTION & DEV'T. CORP / AARCON BUILDERS JOINT VENTURECities
Transaction hash:
a2ffa14159d7b523b5eda0eefc6a6fe5ddcb901ca0c81b6bf70ecaff334cc07c
Status:
Included and unchanged
Block:
#2,121 3,892 blocks after it
Position in block:
Transaction 40 of 67
Award day:
Jul 7, 2014 (12 yrs 4 mo ago)
From:
Value:
₱4,925,615.28
Project:
Improvement of Drainage System Laura Drive
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 #2,121 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 TAGUIG awarded it to PERRC CONSTRUCTION & DEV'T. CORP / AARCON BUILDERS JOINT VENTURE on 2014-07-07.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 Taguig 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 a2ffa14159…4cc07cnow …
- 2. Block Merkle root changedstored b0607d9013…5ddb97now …
- 3. Block #2121 hash changedstored b827ce8d9d…5becbfnow …
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 66 records. Each step hashes the current value together with the sibling shown.
- leaf a2ffa14159d7b523b5eda0eefc6a6fe5ddcb901ca0c81b6bf70ecaff334cc07c
- 01 R aba529040c4079b588e63f78038f390274a560bd3c18f261cef1471dad812b4f
- 02 R bc0262fe0c76104aea479dc3ab93aad298091dd95709a6abf124a708f804b475
- 03 R 91370543f1eacef06229d40f8ef42f83b6d8cfd3fc13c28a1c2c9882bf0c6971
- 04 L f9f004946ca7c113695e39dbf7595720e12f9466ef039b96bd4a09ac22aaef1b
- 05 R 8fb105084cd2a0ddd960c48ab92b3065939e22a0425a69ab7a8895779983433d
- 06 L 008c4182ed9cc5ce843b90ee7bedb7a20a0a4be95d2fdccd26e449dd39402ad3
- 07 R 83bf684c55908aa73685292ac500714ca9203448e0002bf7b198b5a2081596b9
- root b0607d90130695f898f11ec5ec8a77cc46cf4db10d89f3d0a5187f5a375ddb97