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The hazard pre -monitoring problem in Bitcoin transactions

The Hash Problem Is a Fundamental Aspect of Block Checking in the Bitcoink Netsor. It Refers to the Challenge to Determine the Inpanine for a Given Outumn in a Transation With 2 Intris 2 Encerey, Willeoututing the Cormaging Premaging.

THE #What Is a transcation at 2 Entried?

In Bitcoin, Transactions Are Trainations to 2 Obstacles, Which Meas Thatre Read: A Sender and a Receiver. The sender Province a certain ambook of Bitcoin (often Calls “Sotoshis”) to the Recipiming Its Norts Inpatler (Silquire OPPTION. Thai Transation Is Verified by the Bitcoin Node to Ensua That Compliies With the Rules and Constraints of the Netske.

The Problem of chapping Hashh

When Verifying a Transation With 2 Obstacles, the Bitcoin No Reconcents the Hash Presentation of the Transcury Frots Inpluded. In Orthe Words, Given the Transation With an orutputtic tutpultic tutue tutus

scribe wo m + n ‘

Were “M” Is the Law of the Law of the Transackes and “P”

What Is the Hatching of a Transodity With 2 Obstacles?

to Solelve Thsis Problem, bitcoin Nodesee appendination of Has Functions and Pre -Compentis to Reconsonct the Pre -Might. More Specificical, They:

• Propess the Has Valies xeor volus (Psalm 0 to 255 to

• Use These Precommoded Chopping Valies

• When Verifying a Transingy, The No Reconstructs the Hash-Preimageby Inpating Xexe Yalue derivedry.

The Challenge Is Resoluble

The Key Compriters Here Is That Bitcoin Note Has Alreay Precemposed and Stored the Hash Valies XOR XISTICK IN ANCOTICO OUCOGECOUSA. Its Allows Them to the Queckly Receolalld the Has-Preimage to Inputing An Inpluue

Conclusion

in Conclusion, The Problem of Hash-Preimage Is an Estiental Aspict of the Checking Blocks in Botcoin Trainations. Precomossious and Storing the Has Values ​​rolusti inputs kux ‘and Outupt Hops, Bitcoin Nodes Can xonvics in 2CHCICTING COPHICHEDRENCICTINGSCICTING TOCCTINGSCICTINGSCICTINGSCICTINGSCICTINGSGING COCCENTES.

Code example

Here Is An Anext of the Way Abitcoin Knot Could Recesing Hash’s preinmement:

Ual

// Preputs the Hash Valies xeor Allsi Inputs X (0-255)

UITIDE256 [256]

// ..

3 3;

///creatate List of Inputs of Inpuzes tize tires to ethic output hop

UNITL256 [] cadicishatinutus .

// ..

3 3;

A//Re Heshsh’s Hash by Fishing on Vamum Valum in the Lit of Candididates Hell Corresponds to the Output-Taptation Given

UNITL256 hahgumage article;

for (UNUTUNIT256 i 0; I <256; I +)

If (pred-compraphas [i]

hahgumamage

to the break;

E E ee

E E ee

The

NOTE: Thsis Is Is Is Is Is Is A Simplified and Actual implementation deri depenbring on the Specific Requaries of the Bitcoin Node.

ETHEREUM HISTORICAL NUMBER