Pith Number

pith:F2FIXPEK

pith:2013:F2FIXPEKPLM2YWHCI2YOX2GYIA

not attested not anchored not stored refs pending

Automated measurements of diffuse interstellar bands in early-type star spectra Correlations with the Color Excess

Hui-Chen Chen, Lucky Puspitarini, Rosine Lallement

arxiv:1304.1297 v1 · 2013-04-04 · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{F2FIXPEKPLM2YWHCI2YOX2GYIA}

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	2026-05-18T01:50:43.092593Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2e8a8bbc8a7ad9ac58e246b0ebe8d8400b940eec524a866789767333a8fbc952

Aliases

arxiv: 1304.1297 · arxiv_version: 1304.1297v1 · doi: 10.48550/arxiv.1304.1297 · pith_short_12: F2FIXPEKPLM2 · pith_short_16: F2FIXPEKPLM2YWHC · pith_short_8: F2FIXPEK

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/F2FIXPEKPLM2YWHCI2YOX2GYIA \
  | 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: 2e8a8bbc8a7ad9ac58e246b0ebe8d8400b940eec524a866789767333a8fbc952

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c41f1ba7259a8d85dacddc5a26558a1c56e55bd32fde5a8e76440ef0a5878418",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2013-04-04T09:59:32Z",
    "title_canon_sha256": "403fbe5a70066d11f40e34f404f427f37868615b14e1258aecf7223d542920d0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1304.1297",
    "kind": "arxiv",
    "version": 1
  }
}