Pith Number

pith:2U2DBDRX

pith:2013:2U2DBDRXYEZZSHKCZZYLLCILOG

not attested not anchored not stored refs pending

A Radio Determination of the Time of the New Moon

A. Z. Almutairi, C. Dickinson, F. H. Albaqami, L. Piccirillo, L. Trojan, R. D. Davies, Y. A. Hafez

arxiv:1312.5956 v1 · 2013-12-20 · astro-ph.IM · astro-ph.EP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{2U2DBDRXYEZZSHKCZZYLLCILOG}

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	2026-05-18T02:57:16.934250Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d534308e37c133991d42ce70b5890b71bbb3736fcab0922864c2b0da09c4fe93

Aliases

arxiv: 1312.5956 · arxiv_version: 1312.5956v1 · doi: 10.48550/arxiv.1312.5956 · pith_short_12: 2U2DBDRXYEZZ · pith_short_16: 2U2DBDRXYEZZSHKC · pith_short_8: 2U2DBDRX

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/2U2DBDRXYEZZSHKCZZYLLCILOG \
  | 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: d534308e37c133991d42ce70b5890b71bbb3736fcab0922864c2b0da09c4fe93

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3cc977f0ce50890974e6c6c8c1b7bf1a8b2f6bd3513f8f693758fee6d5f3b630",
    "cross_cats_sorted": [
      "astro-ph.EP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2013-12-20T14:25:46Z",
    "title_canon_sha256": "293326c514dc758b2ca5c8b6e58eb7a009c9ec83d0d8eb3cb465591dcb78e803"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1312.5956",
    "kind": "arxiv",
    "version": 1
  }
}