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 DAVAO, DAVAO DEL SUR Award a ₱4.7M contract to ARDRAW CONSTRUCTION AND SUPPLY CORPORATIONCities
Transaction hash:
37bf3bb4f00100be0e5feb5396f24c955d9c6c785ef3e0eda044b96e50082bbe
Status:
Included and unchanged
Block:
#5,848 165 blocks after it
Position in block:
Transaction 86 of 425
Award day:
May 9, 2025 (1 yr 6 mo ago)
Value:
₱4,690,659.29
Project:
Infrastructure B08-2025-04
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 #5,848 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 DAVAO, DAVAO DEL SUR awarded it to ARDRAW CONSTRUCTION AND SUPPLY CORPORATION on 2025-05-09.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 Davao gave a "qualified" 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 37bf3bb4f0…082bbenow …
- 2. Block Merkle root changedstored 847cfd625d…8cefc5now …
- 3. Block #5848 hash changedstored a834efe9f3…64e1d5now …
Chain intact. The record matches its fingerprint, so the block and every block after it still line up.
Merkle proof (9 steps)
How this one record is tied to the block's Merkle root, without needing the other 424 records. Each step hashes the current value together with the sibling shown.
- leaf 37bf3bb4f00100be0e5feb5396f24c955d9c6c785ef3e0eda044b96e50082bbe
- 01 R 387d83cd99601e4804e7d9f9faf0903b2ed7e78f0453d519953ebb8e61d1fbf1
- 02 L cd99620d4de33599d8d2793bc8795b4ab4aaf3724be334679a64c09168582fc3
- 03 L d55f001694d96a6c6aa7b5a4e4b20dca4d0cac1b953b769669ca8684df6148f7
- 04 R ae2bd0e2ca8b4153feeecc98d311aacf10fce3c726674970b13379ededb5424f
- 05 L 2e28488c1e7c645d9e6ea0172f626828de35acad23bc56cf021a98ed6d28c26f
- 06 R 43fd0dd527eb33e6f6d352126feb9fc42e0828e1ff550fe29bf0dc2c1bae1a0a
- 07 L c58080c4df0faf85a441916c0b8de40ad1eca72c2407f445f23d6355b5d34c4a
- 08 R 4c55033ba2e0dca7a27928f3562740e0db8ad1069d560527405713b5e3d7b89d
- 09 R 27640758cbeb549c59b022ffda0ad03f4eacce103f329923d7c060ce7f5bb043
- root 847cfd625d5094d1fb66589dc5cb946c37cf7edd04a9bee7a3676c2db38cefc5