Pith Number

pith:P3TOLB4H

pith:2019:P3TOLB4H72QLIE4EU2HIV5PJRH

not attested not anchored not stored refs pending

Signature of Excess Radio Background in the 21-cm Global Signal and Power Spectrum

Anastasia Fialkov, Rennan Barkana

arxiv:1902.02438 v2 · 2019-02-07 · 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{P3TOLB4H72QLIE4EU2HIV5PJRH}

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

High-Redshift Signatures from the Cosmic Dawn and the Epoch of Reionization

Receipt and verification

First computed	2026-05-17T23:47:58.181311Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7ee6e58787fea0b41384a68e8af5e989e6ddbcab0a6c967cbe459f50106079f5

Aliases

arxiv: 1902.02438 · arxiv_version: 1902.02438v2 · doi: 10.48550/arxiv.1902.02438 · pith_short_12: P3TOLB4H72QL · pith_short_16: P3TOLB4H72QLIE4E · pith_short_8: P3TOLB4H

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/P3TOLB4H72QLIE4EU2HIV5PJRH \
  | 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: 7ee6e58787fea0b41384a68e8af5e989e6ddbcab0a6c967cbe459f50106079f5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2ce160fc94af1d601bf3c5fdff5c9ea7634a886a63d50ec51e882136c283eb61",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2019-02-07T00:21:22Z",
    "title_canon_sha256": "2792165e80f59298fe1037077c0a25855ae1a7a9e03f1145a506049af2871650"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1902.02438",
    "kind": "arxiv",
    "version": 2
  }
}