Pith Number

pith:2IFZKYMY

pith:2018:2IFZKYMYRWAPA4FZUDL2UKWFTS

not attested not anchored not stored refs pending

Detection of Nitrogen gas in the $\beta$ Pictoris circumstellar disk

A. Lecavelier des Etangs, A. Vidal-Madjar, F. Kiefer, I. A. G. Snellen, P. A. Wilson, R. Kerr, V. Bourrier

arxiv:1811.04927 v1 · 2018-11-12 · astro-ph.SR · astro-ph.EP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{2IFZKYMYRWAPA4FZUDL2UKWFTS}

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	2026-05-17T23:56:17.098600Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d20b9561988d80f070b9a0d7aa2ac59c90813c5a24bec5437b64b0f5bfd61e70

Aliases

arxiv: 1811.04927 · arxiv_version: 1811.04927v1 · doi: 10.48550/arxiv.1811.04927 · pith_short_12: 2IFZKYMYRWAP · pith_short_16: 2IFZKYMYRWAPA4FZ · pith_short_8: 2IFZKYMY

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/2IFZKYMYRWAPA4FZUDL2UKWFTS \
  | 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: d20b9561988d80f070b9a0d7aa2ac59c90813c5a24bec5437b64b0f5bfd61e70

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ba683c1a43ea9afda97ecb9ddc9bf878f427c2ebe3f807c8d14f184a91ed8b73",
    "cross_cats_sorted": [
      "astro-ph.EP"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-sa/4.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2018-11-12T19:00:00Z",
    "title_canon_sha256": "971edd4c126ff11f0c5d0a3c277640dec75b548addb6b9e3234e5c0276762f30"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1811.04927",
    "kind": "arxiv",
    "version": 1
  }
}