Pith Number

pith:D4WBR6QW

pith:2021:D4WBR6QWRZYKPDD27KI4OGKEPV

not attested not anchored not stored refs pending

Orion Bar as a window to the evolution of PAHs

Dmitry S. Wiebe, Maria S. Kirsanova, Maria S. Murga, Paul A. Boley

arxiv:2111.05583 v1 · 2021-11-10 · 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{D4WBR6QWRZYKPDD27KI4OGKEPV}

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	2026-07-05T03:30:46.140281Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1f2c18fa168e70a78c7afa91c719447d71b4298c64b3e3c9f6b452b262cb64b7

Aliases

arxiv: 2111.05583 · arxiv_version: 2111.05583v1 · doi: 10.48550/arxiv.2111.05583 · pith_short_12: D4WBR6QWRZYK · pith_short_16: D4WBR6QWRZYKPDD2 · pith_short_8: D4WBR6QW

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/D4WBR6QWRZYKPDD27KI4OGKEPV \
  | 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: 1f2c18fa168e70a78c7afa91c719447d71b4298c64b3e3c9f6b452b262cb64b7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fb5f8942650731f8535545763306e07d8d8b61c312f85c679cc70f5fdf4ea69e",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2021-11-10T09:17:33Z",
    "title_canon_sha256": "45e0ee0e3a73a844e53578c1dc699e1b5c80356450cca1ecfa3060121ff65b78"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2111.05583",
    "kind": "arxiv",
    "version": 1
  }
}