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 ₱995.6K contract to Z. ANTIOQUIA CONSTRUCTIONCities
Transaction hash:
ab18fecb5c58f30d9dbdb26f272e9c47b6de1f3f09bf4262f9f9f69872f3ea23
Status:
Included and unchanged
Block:
#3,424 2,589 blocks after it
Position in block:
Transaction 194 of 272
Award day:
May 21, 2018 (8 yrs 5 mo ago)
Value:
₱995,577.07
Project:
Infra 2018 (2nd Qtr.)
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 #3,424 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 Z. ANTIOQUIA CONSTRUCTION on 2018-05-21.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 ab18fecb5c…f3ea23now …
- 2. Block Merkle root changedstored baeca8f43d…b8f81bnow …
- 3. Block #3424 hash changedstored b071376e22…71a3a5now …
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 271 records. Each step hashes the current value together with the sibling shown.
- leaf ab18fecb5c58f30d9dbdb26f272e9c47b6de1f3f09bf4262f9f9f69872f3ea23
- 01 R ab79217156593cb9367d5fb3fb08b699b9aa16f44ebcc62144912e586011a86c
- 02 L adf6925e13a02c4dd759af7dea5e68cdc20213687d02d836227152a3e124f685
- 03 R 81774af3a3d771bb4d24e5827a9614b34389b2081401bc07270587dae151acfd
- 04 R b6d26796d7cabcd566fbec43824724a29603fcfaae83238b71383a5e8732e8e9
- 05 R b9e4034c644f6ec5e61d8148c72862e312ffc70864ce6e04fff06e34b51f6f27
- 06 R 276e7539b36a3e47808612b5beb8d3936df27be5d7effb3829edc1f040aa9a49
- 07 L 37d335093a710ff681d4958886ec7833cc57fd6b01baeeac01d4665a906ec6e8
- 08 L 603aa697b66dc319595aff8e2f836dd1c0dbc6eb70611e7f0a6161079a964e0e
- 09 R fcce3e301bf83eaa040ab010a6108b1f6fec968b81eb72724962da860ee7fa3d
- root baeca8f43d25c05fbc24d33d6698801b9c0641ec0dc4c7e30d11672d34b8f81b