Pith Number

pith:QQ5B6I3K

pith:2002:QQ5B6I3KMRLDFJZFK5NFGPY4RR

not attested not anchored not stored refs pending

The rich 6 to 9 um spectrum of interstellar PAHs

A.G.G.M. Tielens, C. Van Kerckhoven, C.W. Bauschlicher, D.M. Hudgins, E. Peeters, L.J. Allamandola, S. Hony

arxiv:astro-ph/0205400 v1 · 2002-05-23 · astro-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QQ5B6I3KMRLDFJZFK5NFGPY4RR}

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	2026-05-18T04:12:01.185739Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

843a1f236a645632a725575a533f1c8c55b01d9f35927f56e0fea3899aea63a1

Aliases

arxiv: astro-ph/0205400 · arxiv_version: astro-ph/0205400v1 · doi: 10.48550/arxiv.astro-ph/0205400 · pith_short_12: QQ5B6I3KMRLD · pith_short_16: QQ5B6I3KMRLDFJZF · pith_short_8: QQ5B6I3K

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/QQ5B6I3KMRLDFJZFK5NFGPY4RR \
  | 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: 843a1f236a645632a725575a533f1c8c55b01d9f35927f56e0fea3899aea63a1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "87548576f71d3ba084f2c850a0aab5c353697e7d5f19eafa94195335e7acd961",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2002-05-23T13:07:24Z",
    "title_canon_sha256": "0a4f260f236acd45bb717ac27fe7b3c4783ea0d5ecb771bebe6b1985285e1c6c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0205400",
    "kind": "arxiv",
    "version": 1
  }
}