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
PROVINCE OF DAVAO DEL SUR Award a ₱2.5M contract to JB LAZAN CONSTRUCTION AND SUPPLY INC.Provinces
Transaction hash:
630e4fd2b2a4dbffcb6e0355ad88f41906f497d212309997be5aa5444a01fc73
Status:
Included and unchanged
Block:
#3,125 2,888 blocks after it
Position in block:
Transaction 34 of 95
Award day:
Jul 6, 2017 (9 yrs 4 mo ago)
Value:
₱2,498,611.57
Project:
Construction Projects
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 #3,125 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)PROVINCE OF DAVAO DEL SUR awarded it to JB LAZAN CONSTRUCTION AND SUPPLY INC. on 2017-07-06.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 Davao del Sur gave a "not stated" 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 630e4fd2b2…01fc73now …
- 2. Block Merkle root changedstored 37ef462c42…16b74enow …
- 3. Block #3125 hash changedstored 7c48afd959…11dfa3now …
Chain intact. The record matches its fingerprint, so the block and every block after it still line up.
Merkle proof (7 steps)
How this one record is tied to the block's Merkle root, without needing the other 94 records. Each step hashes the current value together with the sibling shown.
- leaf 630e4fd2b2a4dbffcb6e0355ad88f41906f497d212309997be5aa5444a01fc73
- 01 R 6a820c5cd5d047ea0a4b76599cad292da51035cc79b1ce62e55ea4d8d4dd550f
- 02 L 24d2356af9758c0ce4b8701da5c0d433f0689e787258eb46c3a725de6588cc2b
- 03 R 9f8ac76f37e3ee05b02fffe0ee7bca2f3699e30f6bf2f4e9b7a72b0558fc30c2
- 04 R e73a31533c9de3c52400b715f4462720ddc2f205d887c77e3d4a67d9ce236d42
- 05 R 5805423fd0251ebf042cc4af6f98be74d4dfcd92c39000b6ea955bb2ef79c0d1
- 06 L e17b39b92ba3a4aa7756d847c279000bdd461a09387257b0a0c2e0bbf26af3fb
- 07 R e00009e5eddc3edd36274859acd30d3a5e58368a5e082eb766acf0ccb318bad0
- root 37ef462c42d2f0ddabc8f3b7aa07ff8b1709034faeefb261a2a27f516316b74e