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
DEPARTMENT OF PUBLIC WORKS AND HIGHWAYS - DAVAO CITY II DEO Award a ₱9.5M contract to R.C. MELGAZO BUILDERSNational agencies
Transaction hash:
3dbbe8dd31b708e499c8cfb8c4376773cffcd365d104b787073021a3696e3ac0
Status:
Included and unchanged
Block:
#4,740 1,273 blocks after it
Position in block:
Transaction 193 of 838
Award day:
Mar 8, 2022 (4 yrs 8 mo ago)
Value:
₱9,505,750.72
Project:
22LH0068
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 #4,740 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)DPWH lists the funding source as "Regular Infra - GAA 2022 CSSP", i.e. the FY2022 GAA. The exact UACS line is not given.Partly
- 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)DEPARTMENT OF PUBLIC WORKS AND HIGHWAYS - DAVAO CITY II DEO awarded it to R.C. MELGAZO BUILDERS on 2022-03-08.Found
- 5. Contract & progressContract / progress report (DPWH) · Sec. 5(d)DPWH contract 22LH0068: Completed, 100% physical progress.Found
- 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)DPWH marks the contract "Completed" (end 2022-07-21). The certificate itself is not published.Partly
- 8. AuditCOA annual audit report · Sec. 5(e)(iii)No COA finding linked to this contract.Not published
2 of 8 documents found, 2 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 3dbbe8dd31…6e3ac0now …
- 2. Block Merkle root changedstored e6e8da3378…19f8e9now …
- 3. Block #4740 hash changedstored e9416456e3…9fe99bnow …
Chain intact. The record matches its fingerprint, so the block and every block after it still line up.
Merkle proof (10 steps)
How this one record is tied to the block's Merkle root, without needing the other 837 records. Each step hashes the current value together with the sibling shown.
- leaf 3dbbe8dd31b708e499c8cfb8c4376773cffcd365d104b787073021a3696e3ac0
- 01 L 3d911df69e956cb1d5eb61d6d28109da25100c8d94b2631bfd9c448838a78c0e
- 02 R 6f79bed1b52a98b593e93989490454c166672c540f2113d8023558c16adc8c3e
- 03 R 9f2d848a7c7a026a003797def827f6eb7d94943294188aa5c6d6baea44c568e6
- 04 R 5e030d667b013c70eefff79b380200aa3358e5232da476c5d5c0c92207b71975
- 05 R 493fb842f70578d910253034dda564e89996a15dea1b4e642d5d984c10aca8e7
- 06 R eea21b7a38f5f0405e55196155743e27adff693455e8421e148ba8b2aa0381ab
- 07 L 6a1d0d668254e293112ce459a3c87687f4d368c18a64bd65e204705ec90c0d5f
- 08 L 20b15ec07a2c6789df5aaa4a707b442e101ef7b00593b24b06ecb5eb27d6d3c0
- 09 R 7c5e221a600df018de464dc4301273b48a8e5025e07b2582cdef59baa54eb6d6
- 10 R 0f6c19fdc3a3a384bde9eb26d1fef41377df2a7cb8b6a9dded00c18ebe0eebae
- root e6e8da3378ae17754b373ef3968901eb9b9ffa23d062bfbf6f488dcc3619f8e9