Pith Number

pith:JDEJT22A

pith:1999:JDEJT22AOPKK2NJ5UVJUOVBOQC

not attested not anchored not stored refs pending

Can the reionization epoch be detected as a global signature in the cosmic background?

A.G. de Bruyn, P.A. Shaver, P. Madau, R.A. Windhorst

arxiv:astro-ph/9901320 v1 · 1999-01-22 · 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{JDEJT22AOPKK2NJ5UVJUOVBOQC}

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

Synchrotron and free-free mapping with simulated REACH observations between 50-170 MHz

Receipt and verification

First computed	2026-07-04T14:16:31.000700Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

48c899eb4073d4ad353da55347542e80b77bb3bfedd5d24f591610f963bbddb2

Aliases

arxiv: astro-ph/9901320 · arxiv_version: astro-ph/9901320v1 · doi: 10.48550/arxiv.astro-ph/9901320 · pith_short_12: JDEJT22AOPKK · pith_short_16: JDEJT22AOPKK2NJ5 · pith_short_8: JDEJT22A

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/JDEJT22AOPKK2NJ5UVJUOVBOQC \
  | 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: 48c899eb4073d4ad353da55347542e80b77bb3bfedd5d24f591610f963bbddb2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "42c0a23e83bf7f456e7fc2548499ede5ae93a3eeb8157be9de34456beba09e37",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1999-01-22T11:10:39Z",
    "title_canon_sha256": "eded825d8c786eb7ee15ffe5d921f6c740fee0d1b0980ff28591c8b8a33a0880"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9901320",
    "kind": "arxiv",
    "version": 1
  }
}