web-archive

Queries the Internet Archive for the captured versions of a URL and returns them with capture time, HTTP status, MIME type and content digest, oldest and newest first.

Queries the Internet Archive for the captured versions of a URL and returns them with capture time, HTTP status, MIME type and content digest, oldest and newest first. Because consecutive captures share a digest when nothing changed, the versions where the content actually differed are marked — that is the list worth reading, not the raw capture log. A target date returns the nearest snapshot with the gap in days, which is what a citation of a page as it stood on a given day needs.

UNRATEDDelisted

Overview

Grade?

UNRATED

0 of 30 paid calls toward a letter

Price

$0.005 per call

Paid calls

none yet

delivery unknown until someone pays

More info

Seller?

0x2880edff…771c4e5e

URL

https://research.halowerk.com/v1/web-archive

Seen

first 35 days ago · last 24 days ago

33 free handshakes

Payment

Pays through

x402

Offered on?

Base USDC

Listed on?

Base

Score, from free handshakes onlyweights 2026.09.1

UN
RATED

0.488 liveness verified, no letter

To a letter · 30 paid calls

0 of 30

Held down by liveness · gap to 1.000 is 0.512: 0.159 uncertain ? + 0.353 short ? · 0.162 to C

How the composite of 0.488 is made up, part by part
Component	Weight	Measured	Lower bound ?		Adds	Short ?	Uncertain ?
livenesscosts the most it answered at all	0.60	0.75	0.481		0.288	−0.153	−0.159
latency p95 it answered as fast as its class	0.20	0.00	0.000		0.000	−0.200	0
price stability the price stayed where it was listed	0.20	1.00	1.000		0.200	0	0
Composite	1.00		0.488	gap to 1.000 = 0.512 · 0.353 short · 0.159 uncertain	0.488	−0.353	−0.159

Not measured: correctness · nobody paid; honesty · nobody paid; schema conformance · no answer had a published shape to check

The multiplication, written out

  0.600 × 0.481   liveness       
+ 0.200 × 0.000   latency p95    
+ 0.200 × 1.000   price stability
= 0.488           → UNRATED: 32 of 30 paid calls      weights 2026.09.1 · 32 samples · seed cap_01M1A5QFQJBZKCQWP6SHTG380K|2026-08-17T23:16:22.948Z|2026.09.1

Verify it yourselfnpx teppi-check https://research.halowerk.com/v1/web-archivecurl -s https://api.teppi.xyz/v1/trust/cap_01M1A5QFQJBZKCQWP6SHTG380K