Pith Number

pith:X3W4PDY2

pith:2015:X3W4PDY2DG2IANMFDKDENXYSCQ

not attested not anchored not stored refs pending

The Herschel view of the nebula around the luminous blue variable star AG Carinae

C. Vamvatira-Nakou, C. Waelkens, D. Hutsemekers, G. Rauw, M. A. T. Groenewegen, N. L. J. Cox, P. Royer, Y. Naze

arxiv:1504.03204 v1 · 2015-04-13 · 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{X3W4PDY2DG2IANMFDKDENXYSCQ}

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	2026-05-18T01:46:15.082225Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

beedc78f1a19b48035851a8646df12143a5cb8334424a903c0bf946ecae7a53d

Aliases

arxiv: 1504.03204 · arxiv_version: 1504.03204v1 · doi: 10.48550/arxiv.1504.03204 · pith_short_12: X3W4PDY2DG2I · pith_short_16: X3W4PDY2DG2IANMF · pith_short_8: X3W4PDY2

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/X3W4PDY2DG2IANMFDKDENXYSCQ \
  | 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: beedc78f1a19b48035851a8646df12143a5cb8334424a903c0bf946ecae7a53d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2fe199db586b770b61029eedddfde909f3e63ac22e1e06594f5032f4730bc14d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2015-04-13T15:00:36Z",
    "title_canon_sha256": "8b73a734d4114b2a4d4f95b9104c64d43c5d932a1f14ec05d0ff12c61170192b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1504.03204",
    "kind": "arxiv",
    "version": 1
  }
}