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 ₱1.5M contract to EP MANANTAN CONSTRUCTION AND DEVELOPMENT CORPORATIONProvinces
Transaction hash:
49f95f06fd9d266ff40c2b0b6a7b2934e1c544ddaa2f956d9e2aed74634df9b8
Status:
Included and unchanged
Block:
#4,899 1,114 blocks after it
Position in block:
Transaction 75 of 235
Award day:
Aug 26, 2022 (4 yrs 2 mo ago)
Value:
₱1,497,990.11
Project:
20223538B/2022053217
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 #4,899 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 EP MANANTAN CONSTRUCTION AND DEVELOPMENT CORPORATION on 2022-08-26.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 49f95f06fd…4df9b8now …
- 2. Block Merkle root changedstored c084590b6b…d0c281now …
- 3. Block #4899 hash changedstored ea279c6ae5…3fdc7fnow …
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 234 records. Each step hashes the current value together with the sibling shown.
- leaf 49f95f06fd9d266ff40c2b0b6a7b2934e1c544ddaa2f956d9e2aed74634df9b8
- 01 L 4981fc7b80a8e0dafeb8be9f6e6db8b6d88f71d292e63085d6e70797a3eb87eb
- 02 L 373fcb0ef1df5271eb9c4c2db12c14a437e0becd28f04b7646823357ef8c8832
- 03 R 318a2a942dd5494bdcbd0b2375e0b575ecc248d1248532ff2b9335676da9ee82
- 04 L 82d969fdeef614d4cd0254da44099804d1008712fb14c344ca93f5dd8fff124f
- 05 R f05777105e29002e15f45678f6028e3c11475f0f00b47a0d7d157361c3ed4e07
- 06 R 5c80528bb13208c54aab27b62e32ed9253206605fb7a91bb7787498e7eafccb0
- 07 L 5bc0e9a049ca2c8c50be00fae8bbaac36c1bca5f8fd31a7cfc5e989906043fd1
- 08 R 217bbb6772fd487c613d9042c041329b3aae1e936c6e2e31d44463ba827e64b2
- root c084590b6b6e99cbb212e8562819b394aefd83ea186d44df9917aa38cbd0c281