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 CALAMBA, LAGUNA Award a ₱997.8K contract to FOURTH GENERATION T CONSTRUCTIONCities
Transaction hash:
77330c84f1fd315e7a91a0a75b0c6e5cfb4320d70a6fa3da8766d0a8f99ffbd9
Status:
Included and unchanged
Block:
#5,232 781 blocks after it
Position in block:
Transaction 125 of 279
Award day:
Aug 3, 2023 (3 yrs 3 mo ago)
Value:
₱997,753.62
Project:
Classrooms
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 #5,232 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 CALAMBA, LAGUNA awarded it to FOURTH GENERATION T CONSTRUCTION on 2023-08-03.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 Calamba 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 77330c84f1…9ffbd9now …
- 2. Block Merkle root changedstored c1bdbeaaf0…f8f9fcnow …
- 3. Block #5232 hash changedstored 1dac7eefe9…70c505now …
Chain intact. The record matches its fingerprint, so the block and every block after it still line up.
Merkle proof (9 steps)
How this one record is tied to the block's Merkle root, without needing the other 278 records. Each step hashes the current value together with the sibling shown.
- leaf 77330c84f1fd315e7a91a0a75b0c6e5cfb4320d70a6fa3da8766d0a8f99ffbd9
- 01 L 77039d627997be588b064da64ae64af04bb04aa449299056fc3750f8f8618d81
- 02 R edeb6c256259a39877138bb023b93401cd61c18b7e37d3aba150e6f5b5ae6092
- 03 L efbb16ff81e9eb379e80e2b6a4a74b54caf1540dcba40f4d7c781d1055d59fe0
- 04 L 74b7925a9cd1a35598c3bf7cd1cb123a26795a5763267a5c63e7c9f3b7d52eb1
- 05 L d52cecc7873e2aed6bbf69503a432cdd3d2a328c158eec4480f6c8dccc036c55
- 06 L 7f257e7f185bd2ad44251ab4973313434b687ce9e4811b51dff5ffa593b39022
- 07 L daa9695c8da8acb431b36ba76512e42df3a6e8f0539db5b948a920d1bd37d43c
- 08 R 5903d2c59ccf446f153ffce5f7f764837191416d51179051a3246be7ab6274dc
- 09 R 60c1734bd5e1a688d69497be0936746910311b28e6daa547e0417218a98a3bd3
- root c1bdbeaaf06e6ab5fae2d20f00d547cdba1a9cbb2e25af56ab5c45e760f8f9fc