Pith Number

pith:DNCRMFI7

pith:2012:DNCRMFI77ZJFULN7CKTKZ6S3EY

not attested not anchored not stored refs pending

A Per-Baseline, Delay-Spectrum Technique for Accessing the 21cm Cosmic Reionization Signature

Aaron R. Parsons, Christopher L. Carilli, Daniel C. Jacobs, David F. Moore, James E. Aguirre, Jonathan C. Pober

arxiv:1204.4749 v2 · 2012-04-20 · 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{DNCRMFI77ZJFULN7CKTKZ6S3EY}

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	2026-05-18T01:57:47.893377Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1b4516151ffe525a2dbf12a6acfa5b260a85c2f2fb0ff05a6e2336b33051fa01

Aliases

arxiv: 1204.4749 · arxiv_version: 1204.4749v2 · doi: 10.48550/arxiv.1204.4749 · pith_short_12: DNCRMFI77ZJF · pith_short_16: DNCRMFI77ZJFULN7 · pith_short_8: DNCRMFI7

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/DNCRMFI77ZJFULN7CKTKZ6S3EY \
  | 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: 1b4516151ffe525a2dbf12a6acfa5b260a85c2f2fb0ff05a6e2336b33051fa01

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c079090eda15695d281848045cc942ab437da9ce458015a9caa74df7cf325f4e",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2012-04-20T21:13:26Z",
    "title_canon_sha256": "211218af6cfd4b9c609f42cf28286beebae0673235bc970275654a5b1e40e50b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1204.4749",
    "kind": "arxiv",
    "version": 2
  }
}