Pith Number

pith:27HWPTPO

pith:2014:27HWPTPOTD6VBUAYNMQ35YAS4C

not attested not anchored not stored refs pending

IVOA Recommendation: SimpleDALRegExt: Describing Simple Data Access Services

Doug Tody, Editor Jesus Delago, Paul Harrison, Raymond Plante, the IVOA Registry Working Group

arxiv:1402.4747 v1 · 2014-02-19 · 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{27HWPTPOTD6VBUAYNMQ35YAS4C}

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	2026-05-17T23:45:41.740666Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d7cf67cdee98fd50d0186b21bee012e0896a8e7cdae0a5b7621d48c4cf371d15

Aliases

arxiv: 1402.4747 · arxiv_version: 1402.4747v1 · doi: 10.48550/arxiv.1402.4747 · pith_short_12: 27HWPTPOTD6V · pith_short_16: 27HWPTPOTD6VBUAY · pith_short_8: 27HWPTPO

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/27HWPTPOTD6VBUAYNMQ35YAS4C \
  | 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: d7cf67cdee98fd50d0186b21bee012e0896a8e7cdae0a5b7621d48c4cf371d15

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3d8670d561f545c3f567f4a1b35d9efa0d07854782a836c7c0aa6275f948a2c9",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2014-02-19T18:02:28Z",
    "title_canon_sha256": "cacccedc664cfd2f63f48bc8c07429a67272050b5d7a03c710e8a2d1a6234b67"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1402.4747",
    "kind": "arxiv",
    "version": 1
  }
}