About this artifact
A small JPEG uploaded as a size test, from the period when the practical limits of on-chain storage were still being worked out.
← Timeline image · 2015
Stored at 16 × 16 px · shown at 26× JPG thumbnail (test)
Written to the chain on 26 Mar 2015, block 349,362.
- Block
- 349,362
- Written
- 26 Mar 2015
- Size
- 839 B
- Format
- JPEG
- Transactions
- 1
- Dimensions
- 16 × 16
How it was stored
A normal pay-to-public-key-hash output contains a 20-byte public-key hash. A data uploader can put arbitrary 20-byte chunks in that field instead. To the network it looks like many ordinary-looking outputs, but the “addresses” are fake because nobody knows a private key whose public key hashes to those bytes.
More about P2FKH Proof · 1 transaction
Verified against the chain
Every byte shown here was read from these transactions. Open one in a block explorer to check it yourself.
