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
METRO MANILA DEVELOPMENT AUTHORITY Award a ₱39.9M contract to ARMSPEAL BUILDERS AND SUPPLYNational agencies
Transaction hash:
5502fb8d0d9d5943725a8d35a4df19dbd1e1a096c3c00839bbdd5431c96e1f79
Status:
Included and unchanged
Block:
#5,851 162 blocks after it
Position in block:
Transaction 983 of 2,858
Award day:
May 15, 2025 (1 yr 6 mo ago)
Value:
₱39,880,310.23
Project:
Construction Projects
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 #5,851 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)METRO MANILA DEVELOPMENT AUTHORITY awarded it to ARMSPEAL BUILDERS AND SUPPLY on 2025-05-15.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 5502fb8d0d…6e1f79now …
- 2. Block Merkle root changedstored fc99ff1548…9fc46fnow …
- 3. Block #5851 hash changedstored 8437c26118…4f768dnow …
Chain intact. The record matches its fingerprint, so the block and every block after it still line up.
Merkle proof (12 steps)
How this one record is tied to the block's Merkle root, without needing the other 2,857 records. Each step hashes the current value together with the sibling shown.
- leaf 5502fb8d0d9d5943725a8d35a4df19dbd1e1a096c3c00839bbdd5431c96e1f79
- 01 L 54f87d08387b9c480d5c8cf6dfda1783c914dc789d036a6ced4b8f8f04dde2d9
- 02 L 831a110b9d7467b7c86d77b338ecdaa7adf6f162ee151405dd210064229f3b1d
- 03 L f3a9819c1447e5e173d4c2c1d8ac97986d1a871af5c2c70b27d5b0b5091d14d8
- 04 R e70adbaad71af2d2122f309f18fc718a872d341278c6e98ba52be159af27cbaf
- 05 L 54337fa8039a33f4bd0369752138ea455c2053c5d3bca46bcf38b12f235e3cd2
- 06 R 8a89982fca3a69f96ddb0a248b2d2d4d9da8a0add749e22c02fbde7bb93d1624
- 07 L 0e8d35d9d982a01386973f87f45a1dd62186e2980714d103cdaa9524076eaaeb
- 08 L 728a7140bdd85461bd1ab984629a208312e58c55602d7e8bc2683443e91fa554
- 09 L 7918d0772d869ea667ad1b3342a4fa898ae09cd1d3f17c1b79cbd920ee703266
- 10 L bf91d1ce619093d937d766ed7b847d87a9a717a7c68d31d99cc74efe45d3e4ee
- 11 R 9d97ed96c9fd27bb6db91030298187ee0dc9914155f861593645076920efca2f
- 12 R dcdbb0fb9a0a1d28d74687be0e55d131b68e768cf8f06bb3648c970517adc6c5
- root fc99ff1548b162d4f7cef1495fb31d80984131c41c0465bc5646b648019fc46f