Pith Number

pith:SF4UX4IN

pith:2017:SF4UX4INQBAD7IXODY4R6GX6VQ

not attested not anchored not stored refs pending

NuSTAR hard X-ray data and Gemini 3D spectra reveal powerful AGN and outflow histories in two low-redshift Lyman-$\alpha$ blobs

James E. H. Turner, Kohei Ichikawa, Mischa Schirmer, Rebecca L. Davies, Taiki Kawamuro

arxiv:1709.07018 v1 · 2017-09-20 · astro-ph.GA

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{SF4UX4INQBAD7IXODY4R6GX6VQ}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-05-18T00:32:38.803658Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

91794bf10d80403fa2ee1e391f1afeac27204aa108a07f157cc12e21e3b61464

Aliases

arxiv: 1709.07018 · arxiv_version: 1709.07018v1 · doi: 10.48550/arxiv.1709.07018 · pith_short_12: SF4UX4INQBAD · pith_short_16: SF4UX4INQBAD7IXO · pith_short_8: SF4UX4IN

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/SF4UX4INQBAD7IXODY4R6GX6VQ \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 91794bf10d80403fa2ee1e391f1afeac27204aa108a07f157cc12e21e3b61464

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "de8db8cad4c90196e12b914d12a5f89673d8799a77816bfa9f040656f6ed7a3a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2017-09-20T18:06:21Z",
    "title_canon_sha256": "3c166c732e61eba30a57a35178c341167ab545dd287fbc1340a3f9cb8cb8f175"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1709.07018",
    "kind": "arxiv",
    "version": 1
  }
}