0

There are many untypical Input script data in blockchain. What does it mean?

For example, transaction:

4A253F17E5F4B24B41F72A6AE46DD1BCB25F7F33769C2AA5D50C6A6A7CF9F76E (link)

has it's input script:

3046022100EE238CAD1E8AC7F14661760B1B1FB2CF171F41AFB31E3B59D3CED2284A1C2A71022100BEF7FB989CCFB00A65C009A77B46BC818D2E80458668F73DA0072966AAA28B620103B2ABE09A1C4E67C3EB9ACD5596452A5D785C6E5A772FBEA9A29CA95C15598EA6

When I trying to parse this raw data, the result is:

30

46

02

21

00EE238CAD1E8AC7F14661760B1B1FB2CF171F41AFB31E3B59D3CED2284A1C2A71 – Sig r

02

21

00BEF7FB989CCFB00A65C009A77B46BC818D2E80458668F73DA0072966AAA28B62 – Sig s

01

03

B2ABE09A1C4E67C3EB9ACD5596452A5D785C6E5A772FBEA9A29CA95C15598EA6Unknown data.

What is the unknown data? This is not a Public Key, but what is it?

P.S. I checked that this unknown data is not a part of public key (X coordinate of Public Key as I thinking). After calculating Y coordinate (on EC) of Public Key I get 9F203515694856269C76C797D8E8E784EBDB927B650705E348F6FBA07DC56FAF. After I check the signature (Sig) with this:

Public Key = B2ABE09A1C4E67C3EB9ACD5596452A5D785C6E5A772FBEA9A29CA95C15598EA6, 9F203515694856269C76C797D8E8E784EBDB927B650705E348F6FBA07DC56FAF

Transaction hash for this Sig = 59E4367A829551DE94594777789B9274BFBDAC9F66550B02B85639945F21BE3A.

Then I calculate x and y from Public Key, Hash and generator point G. But x does not match the Sig r from raw data. So this way did not working.

1

It is a public key. I think you're parsing this transaction incorrectly - what you should get is that there are two elements. The first is a signature, and 73 bytes long, starting with 3046022100ee238c... The second element is a public key, and 33 bytes long, and starts with 03b2abe09a1c4e67...


Here's the transaction you linked, broken up into sig and pubkey.

version

01000000

vin count

01

outpoint

3abe215f943956b8020b55669facbdbf74929b7877475994de5195827a36e45900000000

script len

6c

push immediate 73 bytes

49

bytes

3046022100ee238cad1e8ac7f14661760b1b1fb2cf171f41afb31e3b59d3ced2284a1c2a71022100bef7fb989ccfb00a65c009a77b46bc818d2e80458668f73da0072966aaa28b6201

push immediate 33 bytes

21

bytes

03b2abe09a1c4e67c3eb9acd5596452a5d785c6e5a772fbea9a29ca95c15598ea6

sequence

ffffffff

(Everything below is part of the outputs.)

0206cfbb9f0f0000001976a914a66ba35c1d9bdcc8dfeb0fb8bedb16e1a570487d88ac09165612000000001976a914b420350a7b274e059d7ba5c97e8887d447b7287588ac00000000

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.