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 CALATAGAN, BATANGAS Award a ₱890.0K contract to MICHAEVELLI CONSTRUCTION AND SUPPLIESMunicipalities
Transaction hash:
4b8dcc94a65133be511f031c58228db023465c4cf76ab3c309f34560d87f0b86
Status:
Included and unchanged
Block:
#4,748 1,265 blocks after it
Position in block:
Transaction 252 of 755
Award day:
Mar 16, 2022 (4 yrs 7 mo ago)
Value:
₱890,000.00
Project:
Construction of Canal
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 #4,748 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 CALATAGAN, BATANGAS awarded it to MICHAEVELLI CONSTRUCTION AND SUPPLIES on 2022-03-16.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 Calatagan gave a "not stated" 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 4b8dcc94a6…7f0b86now …
- 2. Block Merkle root changedstored 49bfa937da…58f062now …
- 3. Block #4748 hash changedstored c9c6501282…1b848enow …
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 754 records. Each step hashes the current value together with the sibling shown.
- leaf 4b8dcc94a65133be511f031c58228db023465c4cf76ab3c309f34560d87f0b86
- 01 R 4caf07d55514ecb412c0d76a80c473be3c7525c4731658e2ce2b6f287441a8a8
- 02 R e8c6f4b2e7e6f97b9b4482c66e89a23f30beca17e91bd9ced03deedd77ac75ae
- 03 L 7155bc4b83f020b1ef5637f1a0e8355d60d04ba22c7154a481b6915ab739d7da
- 04 L 0828a8392e7ee149e9cca8f19e88ae8db14fd23e8f893a039d5b393ee1068885
- 05 L 11d23b2fb6e5b3c7990573053cdb1ed2abea41c43ab825f6116029883445d2e8
- 06 L f0be40971f2f532d4e0a456895f7dc51f193b845ecae1d962f9e29f3f2a1f7ef
- 07 L b9637ce8de4cc3e7e1f54eac18754beb0798fca5ea73a93e514bfdfa834f12a5
- 08 L d747ef53d62f2d73cbcef177c7d0d9d4b8b8faf6a3d6807328d3a7fa0bc90a72
- 09 R 225ef9da9411754a077e138c5b484ee3e8e9306d1f49a8f4c223d5e1c20a18af
- 10 R 4f72140deb2afc65ba670d8b7c164ef7c4287412b5c0a8e92c259cb972938d6f
- root 49bfa937daadda4a5c4d9ece3272ff45b81898442ce5ce9ae5999fc15c58f062