Pith Number

pith:L5ULZS7W

pith:2018:L5ULZS7WXAPR7PNU3T5SLVRJSP

not attested not anchored not stored refs pending

Astronomical Infrared Spectrum of Planetary Nebula Lin49 and Tc1 Identified by Ionized Polycyclic-Pure-Carbon C23 and C60

Norio Ota

arxiv:1811.05043 v1 · 2018-11-12 · astro-ph.GA · cond-mat.mes-hall · physics.chem-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{L5ULZS7WXAPR7PNU3T5SLVRJSP}

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	2026-05-18T00:01:01.373675Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5f68bccbf6b81f1fbdb4dcfb25d62993d79f043f8a741a7b67e160517af172dc

Aliases

arxiv: 1811.05043 · arxiv_version: 1811.05043v1 · doi: 10.48550/arxiv.1811.05043 · pith_short_12: L5ULZS7WXAPR · pith_short_16: L5ULZS7WXAPR7PNU · pith_short_8: L5ULZS7W

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/L5ULZS7WXAPR7PNU3T5SLVRJSP \
  | 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: 5f68bccbf6b81f1fbdb4dcfb25d62993d79f043f8a741a7b67e160517af172dc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d18e973e37ddaa163cd6f1e4857676bf1dd47e85131f129475a6a3ff55fd9ed9",
    "cross_cats_sorted": [
      "cond-mat.mes-hall",
      "physics.chem-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2018-11-12T23:32:33Z",
    "title_canon_sha256": "0cf53624b8fc8b8ecbf422c0cdaf8fabccf28a290e00d14cc8165fa91f38eb4a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1811.05043",
    "kind": "arxiv",
    "version": 1
  }
}