Pith Number

pith:AEFUMGGA

pith:2013:AEFUMGGAARNE5SF2A5RJNBMBGN

not attested not anchored not stored refs pending

Constraints on Spatial Variations in the Fine-Structure constant from Planck

Asantha Cooray, Francesco De Bernardis, Jon O'Bryan, Joseph Smidt

arxiv:1306.1232 v1 · 2013-06-05 · 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{AEFUMGGAARNE5SF2A5RJNBMBGN}

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	2026-05-18T03:21:42.926091Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

010b4618c0045a4ec8ba0762968581336000b6cf9a3c652e00d5857c45a77688

Aliases

arxiv: 1306.1232 · arxiv_version: 1306.1232v1 · doi: 10.48550/arxiv.1306.1232 · pith_short_12: AEFUMGGAARNE · pith_short_16: AEFUMGGAARNE5SF2 · pith_short_8: AEFUMGGA

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/AEFUMGGAARNE5SF2A5RJNBMBGN \
  | 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: 010b4618c0045a4ec8ba0762968581336000b6cf9a3c652e00d5857c45a77688

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "62718eb2052314bba6c69801810b76f9a9dc0872b34b5bc750ee0973a7cf242b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2013-06-05T20:00:03Z",
    "title_canon_sha256": "e62e00ef531ef06418f8337fa9df271592e843bd9ca35d87b66309a6f194ba2e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1306.1232",
    "kind": "arxiv",
    "version": 1
  }
}