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
PROVINCE OF TARLAC Award a ₱2.2M contract to AMVIL CONSTRUCTION & SUPPLIESProvinces
Transaction hash:
47f0d38fb4d42e6e7be9352254c96353b8711f821d6ad8afeabc3642571a18c6
Status:
Included and unchanged
Block:
#4,465 1,548 blocks after it
Position in block:
Transaction 63 of 255
Award day:
May 31, 2021 (5 yrs 5 mo ago)
From:
Value:
₱2,173,557.10
Project:
Construction of Multi-Purpose Building
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 #4,465 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)PROVINCE OF TARLAC awarded it to AMVIL CONSTRUCTION & SUPPLIES on 2021-05-31.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 Tarlac 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 47f0d38fb4…1a18c6now …
- 2. Block Merkle root changedstored e6c2433589…e0ed07now …
- 3. Block #4465 hash changedstored 6d8b0678ab…b65c5cnow …
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 254 records. Each step hashes the current value together with the sibling shown.
- leaf 47f0d38fb4d42e6e7be9352254c96353b8711f821d6ad8afeabc3642571a18c6
- 01 L 473677d24a660ab916416eab64c2b55300de1e3766e9d2cdc1111517d26e6f0c
- 02 L ceb1a99240445abc2cc34e83616bb116eca3192bb97c4fbda150294febcc4b29
- 03 L a9ff1d95f831df27184096fc6f860ac5f6130764964710e4b299d9893c8902e0
- 04 L a5e229313792aba22bb4e92d516b4d711059cebfc8c17df1604ddd9c3e8e6657
- 05 L 32dd2b1492a4dff88ab37a6d8e00c30fc9229e5dcd2ded1424b08add143dd242
- 06 L 209e335d9ab71ad86f7ec70cb0643b853a9ba8eaee50f87b2273e7be93aa6147
- 07 R a82258ebb9fedc488076fc7de23315e347ec253ccb4bbc00f46743d6f0db1165
- 08 R e3c93481064e289159899a08edcef3414d651f29fe31865846411b3db0f86204
- root e6c243358974e5fedcf7286dec8b81ac8c05edef9375616317e2af1c3be0ed07