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 NORTE Award a ₱1.4M contract to NORTHERN CONSTRUCTION AND ALLIED SERVICESProvinces
Transaction hash:
a9b39f7f20cb3e79e044bc015e6e287141a1753a6b865243e6c422949777d973
Status:
Included and unchanged
Block:
#4,797 1,216 blocks after it
Position in block:
Transaction 391 of 586
Award day:
May 10, 2022 (4 yrs 6 mo ago)
Value:
₱1,424,568.83
Project:
20221169B/2021122119
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 #4,797 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 NORTE awarded it to NORTHERN CONSTRUCTION AND ALLIED SERVICES on 2022-05-10.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 Norte 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 a9b39f7f20…77d973now …
- 2. Block Merkle root changedstored a91157e4d8…b2059anow …
- 3. Block #4797 hash changedstored 4fc23c6e9d…588b92now …
Chain intact. The record matches its fingerprint, so the block and every block after it still line up.
Merkle proof (10 steps)
How this one record is tied to the block's Merkle root, without needing the other 585 records. Each step hashes the current value together with the sibling shown.
- leaf a9b39f7f20cb3e79e044bc015e6e287141a1753a6b865243e6c422949777d973
- 01 L a9a99511238cae7b96491510b53ca4a57c5b568a86f19a5a4b3f22869fa47dde
- 02 L c31a4cb7afe8367c8573dc0885fc89e6da4e71e09899661ca9a21ef0e1afae42
- 03 L 68dbc7a76dac66b48ad809515d5cd314f0d91b689905563b35322a0b1abbe1b3
- 04 R 809128f1d0eca9d5f2d79c5e7f7baa185bc53e1b0a9587f9ac2dcae524e27621
- 05 R 2154a537dee1972e43568368a5b72ef3fb62ba7f813fb07eebc78f686f37c22d
- 06 R ad00b4bffe9fe8f092ba17cd46e037256672bbff6322cc4104ec4be45f46da04
- 07 R 69783ea4f359aef59c3323875593b71ca3472e8dbe625269b00c0d3243ac0a3b
- 08 L 1fe7fb59b60029b60899495799158fa43b2242af945a3c1c72cd89b54f7d41cc
- 09 L fd11bf91a28dffbe711db66f6a5179bdb16d54ec459f5003a3e242dc14c6a3fe
- 10 R 6aee71fd72ba1f98beb7c5d2ca96d2f6ef3a2d524b069f1ee38bfb8af2ffe23f
- root a91157e4d81262db834c169cf1e89adb8455a9abcc5739b02e119b5520b2059a