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
DEPARTMENT OF PUBLIC WORKS AND HIGHWAYS - REGION IV-A Award a ₱205.9M contract to MG SAMIDAN CONSTRUCTIONNational agencies
Transaction hash:
2cfbfda7446a199b0375ff6a890efcabd31800462e839a5911dbb452be4503e4
Status:
Included and unchanged
Block:
#5,852 161 blocks after it
Position in block:
Transaction 132 of 813
Award day:
May 16, 2025 (1 yr 5 mo ago)
Value:
₱205,906,928.03
Project:
25D00205
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 #5,852 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)DEPARTMENT OF PUBLIC WORKS AND HIGHWAYS - REGION IV-A awarded it to MG SAMIDAN CONSTRUCTION on 2025-05-16.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)No COA finding linked to this contract.Not published
1 of 8 documents found, 0 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 2cfbfda744…4503e4now …
- 2. Block Merkle root changedstored 74afd9f55e…db365fnow …
- 3. Block #5852 hash changedstored 8f6dedb2d4…9889f4now …
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 812 records. Each step hashes the current value together with the sibling shown.
- leaf 2cfbfda7446a199b0375ff6a890efcabd31800462e839a5911dbb452be4503e4
- 01 R 2d27d6e0c714cae3796c4d131781ff67b42f3d04d7079ad6f5b3f94b5740a070
- 02 R 02da443af9539f2caead00cf4a3a8f237876beb45b9346eee8597c7e662c7e5d
- 03 L 39553a2534bd4921382ae2f33686ee0a3ebc41c6bed4553496a0f51c180f7dc6
- 04 R 88b2266162a839f9105c725dc74632459141b99a3801e9f26e9450ba3be6259d
- 05 R d1e46446cfc6eda7477eb589fb0d66978502f5814c70110b50a22205be9dc05f
- 06 R 09455c02e13708ded5dae33bb9c52b68feac2efec0fd138f664a420ef8e95896
- 07 R 4f3591dcd0f5df3a3ac6d01c70fa1b07d192e20a15e8d0a19a253b26dd966032
- 08 L 022848fd0242bda2a8d5c477c5054f92f1dc83c4ea71e2da00fa5779d53e110a
- 09 R a1caeb38f24e1490c9b1a94fd6fd839aee8809a090fc1c33de413186265da5af
- 10 R 17378d3946460302d4deb16158c41aa7390db8832172b74483045db75ef5ecab
- root 74afd9f55e6b406bda7fdd4862162a45b6f181e58e420f64618663ab1edb365f