Pith Number

pith:O7ZKZKIT

pith:2009:O7ZKZKITMBAHSWRGYJXQ7XDE3C

not attested not anchored not stored refs pending

Determination of stellar radii from asteroseismic Data

Sarbani Basu (Yale), U.K.), William J. Chaplin (Birmingham, Yvonne Elsworth (Birmingham

arxiv:0909.0506 v1 · 2009-09-02 · 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{O7ZKZKITMBAHSWRGYJXQ7XDE3C}

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	2026-05-18T02:12:00.634173Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

77f2aca9136040795a26c26f0fdc64d8984ca1a6edb084b282f11941c952f394

Aliases

arxiv: 0909.0506 · arxiv_version: 0909.0506v1 · doi: 10.48550/arxiv.0909.0506 · pith_short_12: O7ZKZKITMBAH · pith_short_16: O7ZKZKITMBAHSWRG · pith_short_8: O7ZKZKIT

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/O7ZKZKITMBAHSWRGYJXQ7XDE3C \
  | 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: 77f2aca9136040795a26c26f0fdc64d8984ca1a6edb084b282f11941c952f394

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cc838c90525b9b7a46e3c0697d2fc3467b568210d60c80ba603cf48f425ca935",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2009-09-02T20:00:38Z",
    "title_canon_sha256": "181f4cdc02a78d70d09ac01b27ec81c023a03206f98dac9d90dcc4c882016dca"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0909.0506",
    "kind": "arxiv",
    "version": 1
  }
}