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
MUNICIPALITY OF SAN FRANCISCO, QUEZON Award a ₱596.8K contract to SPECTRON CONSTRUCTION SERVICESMunicipalities
Transaction hash:
c8de059d27a84b5bc3ecc41bfbddf3941956f2e59c5eb465158fd576eb09b947
Status:
Included and unchanged
Block:
#4,461 1,552 blocks after it
Position in block:
Transaction 122 of 168
Award day:
May 27, 2021 (5 yrs 5 mo ago)
Value:
₱596,800.00
Project:
Construction of Drainage System
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 #4,461 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)MUNICIPALITY OF SAN FRANCISCO, QUEZON awarded it to SPECTRON CONSTRUCTION SERVICES on 2021-05-27.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 San Francisco 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 c8de059d27…09b947now …
- 2. Block Merkle root changedstored 4987863640…a4f8cenow …
- 3. Block #4461 hash changedstored 49e0dc2ac5…bab3d4now …
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 167 records. Each step hashes the current value together with the sibling shown.
- leaf c8de059d27a84b5bc3ecc41bfbddf3941956f2e59c5eb465158fd576eb09b947
- 01 R cae5c0824d9cef2b0fc5e58b79f83b98c0f494e93a7c7340943bf6aacd26dbd9
- 02 L 7a11b2dfaad1a289ec01252250eb1543aeb5b031d66c7f2c8755355dbaeeb74c
- 03 R b4b6a54a4da40588bf5309536a113a93a248cac42ffaf082aa5a2064639d478c
- 04 L 2a95c594673d460e31861581c9ce2842afbfaafd9940dc98f7b338c1c154c0fc
- 05 L 428b34ad7e6149473b7d236c06be8b14d9b7985de1411e5ff1eea2cf6309d42e
- 06 L f8c0b36be025bc15ea65638ab686ad5948e4c7b00aff0d9a6db741643a10e464
- 07 L ab2f390c29094c29c6d0185ba0424426ceec04d4be8bfcc7240f4de29afc6133
- 08 R 2dde26d59ac85a0e211eac380db1e7d1ab9ce4f70932ff7ed097ec02895bb098
- root 4987863640724fbbebacc9b539139a1c18d21493e0576c2f06ca185a65a4f8ce