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 LUCBAN, QUEZON Award a ₱499.2K contract to TAN TAY LIM BUILDERS AND GENERAL CONTRACTORMunicipalities
Transaction hash:
98dd9cf0df3dc46975a7072bc6d863e4de5005f7aecaa9f50a660508730c67ec
Status:
Included and unchanged
Block:
#4,453 1,560 blocks after it
Position in block:
Transaction 102 of 176
Award day:
May 18, 2021 (5 yrs 5 mo ago)
Value:
₱499,235.19
Project:
Improvement of Multi-Purpose Hall, Brgy. Tinamnan
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 #4,453 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 LUCBAN, QUEZON awarded it to TAN TAY LIM BUILDERS AND GENERAL CONTRACTOR on 2021-05-18.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 Lucban gave a "unmodified" 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 98dd9cf0df…0c67ecnow …
- 2. Block Merkle root changedstored e837053297…0c8d4cnow …
- 3. Block #4453 hash changedstored 17c55ac545…d92c74now …
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 175 records. Each step hashes the current value together with the sibling shown.
- leaf 98dd9cf0df3dc46975a7072bc6d863e4de5005f7aecaa9f50a660508730c67ec
- 01 R 9a2540ed6ca995528cf33fa40c2dc217c7f20475151fa0cc71fefce44053d9b0
- 02 L e6cb90cf7bafdc7548944e6a4be9ac867c389045e557b8d71f891433a5e3fcc7
- 03 L ebf3248961176c4f49be8534527fd5ea966d4bff0fb9defc970fbc012174c82d
- 04 R cab6aaa99f18d84fb9bc0740814c4f629cbb367cb46aa2c64e843c613850ace2
- 05 R bde8a381089787016132bae0069bcf657654c44801406bf9faa822e1049e9b51
- 06 L 9773296a2ae0b063750f1d687d0da47d4ba8c3941dbef25411eeaf7aeb08b1fb
- 07 L 903af14cbe561eb43cc7aaa03f6b3c3ce5ccdf053941887aebb7774dbfde47a0
- 08 R 34a47206933a1ccac1a2c1133a6d2361665d58c215260bb30f9da0b59d93e846
- root e837053297e525d2927942e7f956eab99251962cdaf1d6bdcf9fac418b0c8d4c