Pith Number

pith:2PMQ7P7I

pith:2010:2PMQ7P7I2JXIPHXHQMNE5COLS3

not attested not anchored not stored refs pending

The many faces of Betelgeuse

C. H. Townes, E. H. Wishnow, S. Lockwood, V. Ravi

arxiv:1012.0377 v1 · 2010-12-02 · astro-ph.SR · astro-ph.IM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{2PMQ7P7I2JXIPHXHQMNE5COLS3}

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	2026-05-18T04:34:17.900060Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d3d90fbfe8d26e879ee7831a4e89cb96fe319d0fdbc3105fcfd9caa06792e344

Aliases

arxiv: 1012.0377 · arxiv_version: 1012.0377v1 · doi: 10.48550/arxiv.1012.0377 · pith_short_12: 2PMQ7P7I2JXI · pith_short_16: 2PMQ7P7I2JXIPHXH · pith_short_8: 2PMQ7P7I

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/2PMQ7P7I2JXIPHXHQMNE5COLS3 \
  | 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: d3d90fbfe8d26e879ee7831a4e89cb96fe319d0fdbc3105fcfd9caa06792e344

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "38fe42df24e94df3250e1e406dce62b3fcac2565deb04d9233542163bbc55afd",
    "cross_cats_sorted": [
      "astro-ph.IM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2010-12-02T03:11:09Z",
    "title_canon_sha256": "068d7a16bd1dd72484fb79930772f17d5a0ddd7347590d718dccdce78f4b80f5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1012.0377",
    "kind": "arxiv",
    "version": 1
  }
}