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 MANDALUYONG Award a ₱9.2M contract to SPRINGSTAR CONSTRUCTION & SUPPLYCities
Transaction hash:
95faae491877ea00b2eb2b1dc83021ac422e6794986b9c783e8ef72c90d58e16
Status:
Included and unchanged
Block:
#4,115 1,898 blocks after it
Position in block:
Transaction 97 of 166
Award day:
May 27, 2020 (6 yrs 5 mo ago)
From:
Value:
₱9,222,628.00
Project:
Drainage and Street
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 #4,115 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 MANDALUYONG awarded it to SPRINGSTAR CONSTRUCTION & SUPPLY on 2020-05-27.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 Mandaluyong 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 95faae4918…d58e16now …
- 2. Block Merkle root changedstored 0b0d35c987…9e74dbnow …
- 3. Block #4115 hash changedstored 2d25ca8918…9a26d7now …
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 165 records. Each step hashes the current value together with the sibling shown.
- leaf 95faae491877ea00b2eb2b1dc83021ac422e6794986b9c783e8ef72c90d58e16
- 01 L 95bc6bb6529015744972f8d046cb545fb5ac1f4fe840f026f4a9ad3e20cbc6c0
- 02 R ed201a5c805bebb46bd9f73e2293656e2453f6500c3e972237cfc6802357ddd1
- 03 R befa43c4367c75a4d8267983453dee4437cdf50ed96b03ce2d4133a5776ff1fe
- 04 R b9f1966054c5ec130a925afdd1b8745196b56fb68b6d8dcc31d611d50eb347bb
- 05 R e272c8b233db7f907aeef000d0e41e7aadcc96d46dcb95aae95add1a5a84c938
- 06 L 5e970b7533790196c40e218eafa4d4f914e1c02c008c80267d6ef89b0dbb0aef
- 07 L 14f2f1fda8e71b595f8863a9afbb9296ae4a1559bde131a1c17738bd8647dc8c
- 08 R 868e540173a52bdd3b993fc649d9368b0ccab98f3ec3385d9a7eb52aac22bd04
- root 0b0d35c987964167ba663ae3e37a77f2d7ea7b84e62720542b9babdd619e74db