Pith Number

pith:YH25GFXO

pith:2011:YH25GFXOBLU7KHSMYRIS37YHZQ

not attested not anchored not stored refs pending

High precision ground-based measurements of solar diameter in support of PICARD mission

Costantino Sigismondi

arxiv:1112.5878 v2 · 2011-12-26 · astro-ph.IM · 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{YH25GFXOBLU7KHSMYRIS37YHZQ}

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	2026-05-18T03:40:14.325924Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c1f5d316ee0ae9f51e4cc4512dff07cc2d3eb676b9759797c55613ef7f5ef951

Aliases

arxiv: 1112.5878 · arxiv_version: 1112.5878v2 · doi: 10.48550/arxiv.1112.5878 · pith_short_12: YH25GFXOBLU7 · pith_short_16: YH25GFXOBLU7KHSM · pith_short_8: YH25GFXO

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/YH25GFXOBLU7KHSMYRIS37YHZQ \
  | 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: c1f5d316ee0ae9f51e4cc4512dff07cc2d3eb676b9759797c55613ef7f5ef951

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7d67812eeb5292467d7420063ed01832146f641164622641a152c81fdefe876a",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2011-12-26T18:33:33Z",
    "title_canon_sha256": "f23da1ea54a490c453eaf1ad9279a860e357bf62641ab4950ab29df18d5aa061"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1112.5878",
    "kind": "arxiv",
    "version": 2
  }
}