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 TANDAG, SURIGAO DEL SUR Award a ₱2.0M contract to RJ CONSTRUCTION & SUPPLYCities
Transaction hash:
8e4fed95b9cecc5c2eeb5fc4475500cc779a05fc30b9afcf99f1bbae92e7f338
Status:
Included and unchanged
Block:
#2,460 3,553 blocks after it
Position in block:
Transaction 103 of 215
Award day:
Jul 13, 2015 (11 yrs 4 mo ago)
Value:
₱1,958,354.77
Project:
Construction Project
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 #2,460 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 TANDAG, SURIGAO DEL SUR awarded it to RJ CONSTRUCTION & SUPPLY on 2015-07-13.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 Tandag gave a "unmodified" 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 8e4fed95b9…e7f338now …
- 2. Block Merkle root changedstored 3fa61d5aba…798948now …
- 3. Block #2460 hash changedstored 8503d5cc27…d658cfnow …
Chain intact. The record matches its fingerprint, so the block and every block after it still line up.
Merkle proof (8 steps)
How this one record is tied to the block's Merkle root, without needing the other 214 records. Each step hashes the current value together with the sibling shown.
- leaf 8e4fed95b9cecc5c2eeb5fc4475500cc779a05fc30b9afcf99f1bbae92e7f338
- 01 L 8df6d97d6241011bed0e252365b2de72c23a47eb3d075f1bf483982d7d838495
- 02 L 01286fd6b9f7db3b40f99f18932212b9ad63262de54b7f462a9a1b8e884f7751
- 03 L 43977fc42d8a79959b24b496b9b262cde7cb9b46bd45805f15e80a6e6a272453
- 04 R 5992b32f3a253a51b424381fd9127e4126340ac8f72558984dec5fbbc959c08b
- 05 R 3e4b929458eb536f589a75f3b26d7d3323bcdcd5b2fd23d237d0b15429519c0c
- 06 L 4a11a4f2defb8b007fa0d0728d4c75220561b552401bb3d2edea7ed7a008c17f
- 07 L 95e73a0fc04e4c143bfabed302bfdc326f38d7e8b726684969af32aa8d825953
- 08 R dc6e45155b7b6f747ed04443c92bb5621bafc8432b0cfc525fc636c5789ee8ab
- root 3fa61d5aba89c280a5ec3d6d06c15388057ebfdb409a7a979a1a96ec1e798948