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
CITY OF SAN PEDRO, LAGUNA Award a ₱12.8M contract to MEGA M BUILDERS CORPORATIONCities
Transaction hash:
ebd67ea5cb1e7e9c772a8d28d3c895e2af531094838514d6c732bc8c56891718
Status:
Included and unchanged
Block:
#4,719 1,294 blocks after it
Position in block:
Transaction 824 of 878
Award day:
Feb 14, 2022 (4 yrs 8 mo ago)
Value:
₱12,781,496.10
Project:
Construction Works
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 #4,719 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)CITY OF SAN PEDRO, LAGUNA awarded it to MEGA M BUILDERS CORPORATION on 2022-02-14.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 City of San Pedro 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 ebd67ea5cb…891718now …
- 2. Block Merkle root changedstored b443a37048…20c5a7now …
- 3. Block #4719 hash changedstored 75715c1da3…cf0b3dnow …
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 877 records. Each step hashes the current value together with the sibling shown.
- leaf ebd67ea5cb1e7e9c772a8d28d3c895e2af531094838514d6c732bc8c56891718
- 01 R ebe2db3607b503d2400a4b0cceb667f0cffec58a0a028dec779199003f45dc1f
- 02 R 7c607c3760637ea52bc9a1bba7016006d61b917ab0b48121b266e7695b959f5e
- 03 R f7b50de9187db69b8d8b6307d3f38ddfae8f5225ee89f4c4d3cc580254711db3
- 04 L 65f9ed94d5e9e251cc2952a1532c287d94bdd5f057e7dfac969a9ff8410078b6
- 05 L 54923cce5bde7c7cc6a93bbb30fce8108e517f82623c4d852f40d681e913a68a
- 06 L 2d759bf946308075777fef7c5dc9dee15a7d33c3973209ba9a42ca2995d0e363
- 07 R 79cba67972cb8f00550da2bf50352a8fed43f6bbd37b4dd6d422318077603521
- 08 R 2c064fc617cf9d84d7183c550ee4008c5f64b0b80095275b9d1bc20e61cb75af
- 09 L 696dea302decee03a7c91abaf97de5f028df4bb5d5004bb59039abfae44047b8
- 10 L 2978e8b0267cd5942d8f0a04f8710be20ace4d89cf8b16e7004392e7314bf79b
- root b443a37048a6ab7970a0cd1660f58bc1f1564885e1d60b3289a8f02cda20c5a7