Pith Number

pith:NIX3XTIN

pith:2013:NIX3XTINRV7G5MQKLGOOEMLDWM

not attested not anchored not stored refs pending

First results of an H-alpha based search of classical Be stars in the Perseus Arm and beyond

D. Steeghs, H. J. Farnhill, J. E. Drew, J. Fabregat, J. J. Drake, L. Sabin, M. J. Barlow, N. J. Wright, R. Greimel, R. M. L. Corradi, R. Raddi, S. E. Sale

arxiv:1301.1298 v1 · 2013-01-07 · astro-ph.GA · 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{NIX3XTINRV7G5MQKLGOOEMLDWM}

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	2026-05-18T01:52:20.941590Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6a2fbbcd0d8d7e6eb20a599ce23163b33756c8821839f1520daa2a49e57597ec

Aliases

arxiv: 1301.1298 · arxiv_version: 1301.1298v1 · doi: 10.48550/arxiv.1301.1298 · pith_short_12: NIX3XTINRV7G · pith_short_16: NIX3XTINRV7G5MQK · pith_short_8: NIX3XTIN

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/NIX3XTINRV7G5MQKLGOOEMLDWM \
  | 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: 6a2fbbcd0d8d7e6eb20a599ce23163b33756c8821839f1520daa2a49e57597ec

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9b75685c804ad9cc00f8f0a3d35dc73c9369cdf1fad24ce87a7d44b64fcb5454",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2013-01-07T18:47:24Z",
    "title_canon_sha256": "345b957cbd9dc40885941101ce1ff44b797605325f39234336e1397ed12d6985"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1301.1298",
    "kind": "arxiv",
    "version": 1
  }
}