Extraction
An extracted sat sits in an output a collector made for rare sats: small for what it holds, as the index's per-output value budget measures it.
When an output counts as extracted
Rare sats usually travel unnoticed inside ordinary outputs. A collector extracts them by moving them into outputs of their own. The index decides, per output, whether it is extracted:
- it is spendable;
- it was created by a block timestamped on or after 14 December 2022 (UTC), the date the index takes as the launch of ordinals;
- its value is at most its budget: 10,000 sats for each individually tracked sat it holds, and, for each unbroken run of block 9 sats, the run's length plus 10,000.
So a single rare sat in an output of 10,000 sats or less is extracted, and so is a pure block 9 chunk. A collector's output packing 100 rare sats into 33,000 sats is extracted too (its budget is 1,000,000), while an exchange output carrying two uncommons in a whole bitcoin is not (its budget is 20,000). The whole output is extracted or not, for every category it holds.
What the numbers mean
The Extracted column of the supply table counts a category's sats that sit in extracted outputs now. It is a current count, not a history: a sat moved from an extracted output back into a large one stops counting. For example, 250,736 of the 971,941 uncommon sats mined so far are extracted. A category's statistics list its top extracted holders apart from the non-extracted ones.
Extract it yourself
On your own address page, connect the wallet that holds it: Extract carves the rare sats of the UTXOs you pick into outputs of their own (330 sats each, 546 for a legacy or nested SegWit destination), sends them to your ordinals address, and leaves everything else where it was. Your wallet signs; the network fee and a flat tools fee come only from plain bitcoin of your payment address, never from the sats being extracted. The same is open to scripts: Extract rare sats.
Notable extractions
The Extractions feed lists the moment sats are isolated: an extracted output that received sats from an input that was not extracted. Moving sats between extracted outputs isolates nothing, so a collector consolidating their own extracted outputs into one bundle is not listed. An extraction is listed for early uncommon and black sats, alphas mined in January or February 2009, anything rarer, milestone alphas and omegas, 1D and 2D palindromes, perfect palinceptions, bounty3 names, any combination with a historic place (such as a Pizza alpha), and block 9 or 450x chunks above a minimum size; the feed's "Why notable?" gives the current thresholds. Extractions still in the mempool show first, marked pending.