Pith Number

pith:WY7HTO7O

pith:2011:WY7HTO7OICXA6PIJ3VYFEG5GYO

not attested not anchored not stored refs pending

A Sensitivity and Array-Configuration Study for Measuring the Power Spectrum of 21cm Emission from Reionization

Aaron Parsons, Daniel Jacobs, James Aguirre, Jonathan Pober, Matthew McQuinn

arxiv:1103.2135 v2 · 2011-03-10 · astro-ph.IM · 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{WY7HTO7OICXA6PIJ3VYFEG5GYO}

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	2026-05-18T02:02:54.877623Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b63e79bbee40ae0f3d09dd70521ba6c39c9b371cbf9e3d40c803b15d7912a2b2

Aliases

arxiv: 1103.2135 · arxiv_version: 1103.2135v2 · doi: 10.48550/arxiv.1103.2135 · pith_short_12: WY7HTO7OICXA · pith_short_16: WY7HTO7OICXA6PIJ · pith_short_8: WY7HTO7O

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/WY7HTO7OICXA6PIJ3VYFEG5GYO \
  | 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: b63e79bbee40ae0f3d09dd70521ba6c39c9b371cbf9e3d40c803b15d7912a2b2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "31d1bcae988c0f269c788785b94b720892183ee389edd6b23de82cc54f3b9897",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2011-03-10T21:06:55Z",
    "title_canon_sha256": "b45d3477569f826d4839e81ba0ba2887362f31d85e64f60fb2c4183a5cedd51f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1103.2135",
    "kind": "arxiv",
    "version": 2
  }
}