Pith Number

pith:GZ4DEFM4

pith:2018:GZ4DEFM4P2FT5NU6HXHJRNIDHY

not attested not anchored not stored refs pending

Evidence for Short $\sim 1$ Myr Lifetimes from the He II Proximity Zones of $z \sim 4$ Quasars

Gabor Worseck, Ilya S. Khrykin, Joseph F. Hennawi

arxiv:1810.03391 v1 · 2018-10-08 · astro-ph.GA · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{GZ4DEFM4P2FT5NU6HXHJRNIDHY}

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.

Cited by

1 paper in Pith

\texttt{calypso}: a Parameter-Conditioned Stochastic Surrogate Model for Circumbinary Accretion Time-Series

Receipt and verification

First computed	2026-05-17T23:55:54.674333Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

367832159c7e8b3eb69e3dce98b5033e1d827d1167fbbd3d25e8cda36a84d5f2

Aliases

arxiv: 1810.03391 · arxiv_version: 1810.03391v1 · doi: 10.48550/arxiv.1810.03391 · pith_short_12: GZ4DEFM4P2FT · pith_short_16: GZ4DEFM4P2FT5NU6 · pith_short_8: GZ4DEFM4

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/GZ4DEFM4P2FT5NU6HXHJRNIDHY \
  | 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: 367832159c7e8b3eb69e3dce98b5033e1d827d1167fbbd3d25e8cda36a84d5f2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "108e2801b114fa7b2e79a546e0622ee3ae9c699851be3130b69a8d43af0a0825",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2018-10-08T12:09:48Z",
    "title_canon_sha256": "4850dc08e10123b29a109ed7a622d4c8608664afea466e962415c67f005e9cb9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1810.03391",
    "kind": "arxiv",
    "version": 1
  }
}