Pith Number

pith:NEF2QFUV

pith:2009:NEF2QFUVWR5UZZXW3EUPGDLBEC

not attested not anchored not stored refs pending

Feasibility of an Infrared Parallax Program Using the Fan Mountain Tinsley Reflector

Chan Park, Jennifer Lynn Bartlett, Philip A. Ianna, Srikrishna Kanneganti

arxiv:0910.1137 v3 · 2009-10-07 · 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{NEF2QFUVWR5UZZXW3EUPGDLBEC}

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	2026-05-18T02:34:19.866628Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

690ba81695b47b4ce6f6d928f30d6120859387f28315b400d08a6a7da68f6548

Aliases

arxiv: 0910.1137 · arxiv_version: 0910.1137v3 · doi: 10.48550/arxiv.0910.1137 · pith_short_12: NEF2QFUVWR5U · pith_short_16: NEF2QFUVWR5UZZXW · pith_short_8: NEF2QFUV

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/NEF2QFUVWR5UZZXW3EUPGDLBEC \
  | 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: 690ba81695b47b4ce6f6d928f30d6120859387f28315b400d08a6a7da68f6548

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "aeb3cc4c00edf697bdd14d20c4ea985cce8f42ca786255445b744c0efa104398",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2009-10-07T14:25:08Z",
    "title_canon_sha256": "4d6efe9986409aa8a56004ccd90eca7d4baee0fa7c8f13db9bb738940f7d42a9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0910.1137",
    "kind": "arxiv",
    "version": 3
  }
}