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 TANAUAN, BATANGAS Award a ₱1.5M contract to T. SOLOMON CONSTRUCTIONCities
Transaction hash:
8df4e5260ded2d445f605fefc17b10f8b5c7cbc1b3c2db458090a75106c4b7a3
Status:
Included and unchanged
Block:
#1,560 4,453 blocks after it
Position in block:
Transaction 27 of 49
Award day:
Sep 14, 2012 (14 yrs 1 mo ago)
Value:
₱1,523,362.50
Project:
infra no. 4
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 #1,560 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 TANAUAN, BATANGAS awarded it to T. SOLOMON CONSTRUCTION on 2012-09-14.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 Tanauan 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 8df4e5260d…c4b7a3now …
- 2. Block Merkle root changedstored d2816e93f5…f2d06cnow …
- 3. Block #1560 hash changedstored 80fd022d91…bebfcbnow …
Chain intact. The record matches its fingerprint, so the block and every block after it still line up.
Merkle proof (6 steps)
How this one record is tied to the block's Merkle root, without needing the other 48 records. Each step hashes the current value together with the sibling shown.
- leaf 8df4e5260ded2d445f605fefc17b10f8b5c7cbc1b3c2db458090a75106c4b7a3
- 01 L 898f89af71a0e4da585417ce37eb8a7cbb854e6f23614b595e8168d9093b6612
- 02 L f9309a891a7822e52c74fd46f6a6b9252eef2f725103179d8346d4c3d45d6e7d
- 03 R 6839c6cc435b45c4dabc4dc6b3d7fd47bccefed54dc3f6ea36826a46d37a3989
- 04 L 67ba526dfba6547ab1a6f92b97c7b205ec4de5444689271df892134888a22869
- 05 L ad668273b28bd51f1b2c534f26a48dfd13915967ceb2f1eb9e09d01db1102214
- 06 R 90bd4dbf3ec21b83872cfd45af0b45664e027b1d9f432c3f4eef3e206027f7b0
- root d2816e93f54760a39605d647297412bdcc7817aa2d021710adc8f82d74f2d06c