Pith Number

pith:4JMTFYX3

pith:2009:4JMTFYX3KNHFJYJXTFWRYH2L3R

not attested not anchored not stored refs pending

Asteroseismology and evolution of EHB stars

Roy H. {\O}stensen

arxiv:0901.1618 v1 · 2009-01-12 · astro-ph.SR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4JMTFYX3KNHFJYJXTFWRYH2L3R}

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	2026-05-18T02:15:02.565761Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e25932e2fb534e54e137996d1c1f4bdc6ffc83b76d10f88d5d6ea23e29d48834

Aliases

arxiv: 0901.1618 · arxiv_version: 0901.1618v1 · doi: 10.48550/arxiv.0901.1618 · pith_short_12: 4JMTFYX3KNHF · pith_short_16: 4JMTFYX3KNHFJYJX · pith_short_8: 4JMTFYX3

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/4JMTFYX3KNHFJYJXTFWRYH2L3R \
  | 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: e25932e2fb534e54e137996d1c1f4bdc6ffc83b76d10f88d5d6ea23e29d48834

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6f8530c342511032a8b42064b1a629d369a0927fdbf97fc0661c969fab2aa3ef",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2009-01-12T17:24:00Z",
    "title_canon_sha256": "20216e9ca194f7b37a22465e4f9de12e15605380a028a58abcbeb3375a24ec5f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0901.1618",
    "kind": "arxiv",
    "version": 1
  }
}