Pith Number

pith:6IUKZ6EC

pith:2013:6IUKZ6EC7ULTGVLMBFNLTIKVKO

not attested not anchored not stored refs pending

100 million years after the Big Bang

Jeremy Mould

arxiv:1306.1574 v2 · 2013-06-06 · 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{6IUKZ6EC7ULTGVLMBFNLTIKVKO}

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	2026-05-18T03:20:58.088269Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f228acf882fd1733556c095ab9a15553a435a283301e8c2d11cd535897fbdec5

Aliases

arxiv: 1306.1574 · arxiv_version: 1306.1574v2 · doi: 10.48550/arxiv.1306.1574 · pith_short_12: 6IUKZ6EC7ULT · pith_short_16: 6IUKZ6EC7ULTGVLM · pith_short_8: 6IUKZ6EC

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/6IUKZ6EC7ULTGVLMBFNLTIKVKO \
  | 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: f228acf882fd1733556c095ab9a15553a435a283301e8c2d11cd535897fbdec5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "805f86caa4cd38280f3c177f81d4fcab77ed37eadea39cc85ef10a6ff244147e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2013-06-06T23:26:47Z",
    "title_canon_sha256": "9209625b0e76b317fa9fee48e0ae37eb6b6dc5da84f9b7c4cc210b5f64ed2d98"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1306.1574",
    "kind": "arxiv",
    "version": 2
  }
}