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
DEPARTMENT OF PUBLIC WORKS AND HIGHWAYS - NORTHERN SAMAR 1ST Award a ₱9.8M contract to CATARMAN BUILDERS CONSTRUCTIONNational agencies
Transaction hash:
dc0dd7c2a272b9dca372ea60c80cc06c8c35798d509bea898f7ad5185da226b0
Status:
Included and unchanged
Block:
#5,910 103 blocks after it
Position in block:
Transaction 286 of 343
Award day:
Jul 18, 2025 (1 yr 3 mo ago)
Value:
₱9,849,730.56
Project:
25IH0084
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 #5,910 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)DEPARTMENT OF PUBLIC WORKS AND HIGHWAYS - NORTHERN SAMAR 1ST awarded it to CATARMAN BUILDERS CONSTRUCTION on 2025-07-18.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)No COA finding linked to this contract.Not published
1 of 8 documents found, 0 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 dc0dd7c2a2…a226b0now …
- 2. Block Merkle root changedstored 0de4a2de8c…cbcfb6now …
- 3. Block #5910 hash changedstored ee12264b61…6ae473now …
Chain intact. The record matches its fingerprint, so the block and every block after it still line up.
Merkle proof (9 steps)
How this one record is tied to the block's Merkle root, without needing the other 342 records. Each step hashes the current value together with the sibling shown.
- leaf dc0dd7c2a272b9dca372ea60c80cc06c8c35798d509bea898f7ad5185da226b0
- 01 R dc15436aa3f5c00343ca8767da85d7ea92bcf09d70f61cccced64ab97cc8d898
- 02 L 599194b97f97b999bf11b127b948a66e4bf1c5f9e497e3c39d808f317cc8a777
- 03 L 5fb50b2feb9e033d5a7c060b71ea5a445a51cb2e280c5d72fd061f413c6d96f4
- 04 L 5a53a33effaad22a766cb448a1e4a1551d20db951956c6aeb0b3c4438aedccb0
- 05 L fac7e71bffaf80ba6ac51c4438b9ae9e408f553cfaf49184340c1802bcf75e9b
- 06 R 9de4f2542040baa997a0016e80ab3368373efd8c8bdae7d92884c28ed6d83f9d
- 07 R 77d86007aaf8dd7109f2fa98ee0729a9a4d8b6fff4b853513cd2a8d8674b9fa3
- 08 R bf427c43eb9f2e29b5c5bd86647e2318263bb8855b924109eadfa2d4f68b2fd9
- 09 L dc0faaeaa3016018949409b3aed910196f33431ba312b695591b7b6b4aba6dab
- root 0de4a2de8c3ccdaf88e4cacdd473ce27b080a884a3665129f536ca2c7ccbcfb6