Foundry USA · block 975,591

block attributionin forceversion 1

The attribution of one block to a pool by one source, mempool mining pools. The block's page lists every source's attribution, side by side.

mempool mining pools attributes block 975,591 to Foundry USA, by the tag in its coinbase.

mempool mining pools · web crawl · 20 · in force since 12 Nov 2026

version: 1 of 1; in force
in force since: 12 Nov 2026; 20:02 UTC
first read: 12 Nov 2026; 20:02 UTC
rests on: 1; a match of the catalog's pattern in the coinbase's text
disputes: 0; none open · none resolved

Attributions

the claim · what it says, what it rests on, since when

what is said

subject: block 975,591 00000000000000000000fb0c36bc20bdebd641c75719204827d1b7ba46a983a0
pool: Foundry USA
how: by the tag in its coinbase
source: mempool mining poolslicence: MIT
class: web crawl · 20read on a public web page

Pool catalog: mempool/mining-pools (MIT)

what it rests on 1

text found in the coinbase: /Foundry USA Pool #dropgold/Z
the catalog's pattern: Foundry USA Pool
how it matched: the text contains the pattern
matcher: v1
the source's file: sha256 7ac47b0410134c2a023f09ae78aeb4161016f9528f748d987b6880b4cda19f9f

the days

the block was mined: 12 Nov 2026 20:05 UTC
reported by the source: no report date: the record carries none
first read: 12 Nov 2026 20:02 UTC
in force since: 12 Nov 2026 20:02 UTC
file read: not served: the record carries the file's hash and no time

An attribution is one source's reading of one block by one method. The block's page lists every source's, in one fixed order and with no winner.

Everything said of block 975,591 Dispute this claimnone open · none resolved

The record

cite it · its versions · check that what you quote is what is served

Citea citation names one claim at one version

citation: btcintel:attributions:21143@v1 sha256:d58155371031884a
this version: the link that pins version 1it keeps showing version 1 when a later one is written
as a file: a block attribution is not exported as STIX: the API serves no file for it

Versions1 version

Version 1 · written 12 Nov 2026 20:02 UTC by the pool matcher, v1in forcethis pagebtcintel:attributions:21143@v1 sha256:d58155371031884a

Verifythe hash of what is served must begin with the citation's 16 hex

A citation names a claim, a version and the first 16 hex of that version's content hash. Fetch the version and compare: the hash must begin with the citation's 16 hex. The ETag of the answer carries the same hash: production answers it weak (W/) and with its encoding's suffix (-gzip), or bare.

curl -sI "https://api.btcintel.io/v1/claims/att_21143?version=1" | grep -i etag# ETag: W/"d58155371031884a872b799d192c5c4e44c975838908032f642acc359c74e50f-gzip" curl -s "https://api.btcintel.io/v1/claims/att_21143?version=1" | jq -r .content_sha256# d58155371031884a872b799d192c5c4e44c975838908032f642acc359c74e50f# the first 16 hex are the citation's: btcintel:attributions:21143@v1 sha256:d58155371031884a

it must give: d58155371031884a872b799d192c5c4e44c975838908032f642acc359c74e50f

Every change to the content writes a new version with its own hash; the previous version keeps its hash and its citation, so a quote never changes under the reader.