Pith Number

pith:JX5SQJSP

pith:2002:JX5SQJSPDKH7VZOKPHQR3KG7IH

not attested not anchored not stored refs pending

Spectral Signature of Cosmological Infall of Gas Around the First Quasars

(2) IAS, 3) ((1) Tel Aviv U., (3) Harvard U.), Abraham Loeb (2, Rennan Barkana (1)

arxiv:astro-ph/0209515 v4 · 2002-09-25 · astro-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{JX5SQJSPDKH7VZOKPHQR3KG7IH}

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

JWST absorption line spectroscopy with SPURS: ISM covering fractions and kinematics in individual galaxies at $z=5-9$

Receipt and verification

First computed	2026-05-18T01:40:42.151855Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4dfb28264f1a8ffae5ca79e11da8df41f3efd7d955fbbf6213023c22b2d31f48

Aliases

arxiv: astro-ph/0209515 · arxiv_version: astro-ph/0209515v4 · doi: 10.48550/arxiv.astro-ph/0209515 · pith_short_12: JX5SQJSPDKH7 · pith_short_16: JX5SQJSPDKH7VZOK · pith_short_8: JX5SQJSP

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/JX5SQJSPDKH7VZOKPHQR3KG7IH \
  | 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: 4dfb28264f1a8ffae5ca79e11da8df41f3efd7d955fbbf6213023c22b2d31f48

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f7884f5337ea7ccf9107f7fc934a9d43dc664a5d080c9ca6e5db29fc12b49763",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2002-09-25T16:18:52Z",
    "title_canon_sha256": "b31dbf6b06540e8bb3b4b7a0af92b2b7cfd957cb727cad643e0611f9a1fa0557"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0209515",
    "kind": "arxiv",
    "version": 4
  }
}