Pith Number

pith:2PJOJDCK

pith:2005:2PJOJDCKYXDJ2NITZ2REALWOSC

not attested not anchored not stored refs pending

Cepheid distances from Interferometry

Pierre Kervella (LESIA)

arxiv:astro-ph/0509390 v1 · 2005-09-14 · astro-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{2PJOJDCKYXDJ2NITZ2REALWOSC}

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	2026-05-18T04:33:50.834470Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d3d2e48c4ac5c69d3513cea2402ece90affb7f0f4e4be29d3e8833cad5c196fc

Aliases

arxiv: astro-ph/0509390 · arxiv_version: astro-ph/0509390v1 · doi: 10.48550/arxiv.astro-ph/0509390 · pith_short_12: 2PJOJDCKYXDJ · pith_short_16: 2PJOJDCKYXDJ2NIT · pith_short_8: 2PJOJDCK

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/2PJOJDCKYXDJ2NITZ2REALWOSC \
  | 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: d3d2e48c4ac5c69d3513cea2402ece90affb7f0f4e4be29d3e8833cad5c196fc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0270d41bd5ae182e79df7a5e4d56c9ed35583127d766267ee2afa572a8adfb75",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2005-09-14T13:51:58Z",
    "title_canon_sha256": "dc53ce71e8550237f15dd7c084f5ed8b7b68e87a3dfab68a9b9100d79c9fb954"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0509390",
    "kind": "arxiv",
    "version": 1
  }
}