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 LAS PIÑAS Award a ₱8.6M contract to MANGELESE CONSTRUCTION CORPORATIONCities
Transaction hash:
06aef4551ec02c598f53ad5f1079f1fe11e8c0f14bed8e1e813537c3b82c7de9
Status:
Included and unchanged
Block:
#4,843 1,170 blocks after it
Position in block:
Transaction 5 of 142
Award day:
Jul 1, 2022 (4 yrs 4 mo ago)
From:
Value:
₱8,640,516.00
Project:
Upgrading of Roads & Drainage System
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 #4,843 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 LAS PIÑAS awarded it to MANGELESE CONSTRUCTION CORPORATION on 2022-07-01.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 Las Piñas 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 06aef4551e…2c7de9now …
- 2. Block Merkle root changedstored 1a9c6ea6d8…2eeaaenow …
- 3. Block #4843 hash changedstored 9136fb3132…9768banow …
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 141 records. Each step hashes the current value together with the sibling shown.
- leaf 06aef4551ec02c598f53ad5f1079f1fe11e8c0f14bed8e1e813537c3b82c7de9
- 01 L 060a0c431fa8e0e1b4bc01736dac70dcfbf872770b1b12532e1c7050e8df880a
- 02 R d6e79c79924c89f9263f39a0c1faca9f797509875ed178a8e8783bcdf2699494
- 03 L 4f002fe17ba219ee57803120055a3b5bde307720cf58a56e999a2c0d77bfe96b
- 04 R ab930ee015a93f6dd8496b4f26f2efb2ed43aeebf2b0acac9b3adc37b8f7012c
- 05 R 2c56a4ef768edb9b00b139ed79c109007fd8a4a60cce130b6987f64c52799e71
- 06 R fcf28c57e72eba31c85eae2a8e15ceec519c84ffccd9d85dec8ce307b5e4659f
- 07 R c8729016ceecb28d6e05fb7a1cd59134101583f5c7f0847f9fd824f57bb413d1
- 08 R c9a45e89314bebd23a77a52a05c82b2700ab883a26fde74cf0ace320d5ee0776
- root 1a9c6ea6d8e6f8ab52e0dfaadc9c76d47c14fb02b77de7c82cd8e76f3a2eeaae