Pith Number

pith:OVKRP44W

pith:2011:OVKRP44W3IVIX5CVSJULIAMUZN

not attested not anchored not stored refs pending

The 15-20 um emission in the reflection nebula NGC2023

Alexander G. G. M. Tielens, Els Peeters, Louis J. Allamandola, Mark G. Wolfire

arxiv:1112.3386 v1 · 2011-12-14 · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{OVKRP44W3IVIX5CVSJULIAMUZN}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

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	2026-05-18T01:59:09.587946Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

755517f396da2a8bf4559268b40194cb66c0c77996689688032221b83b341a23

Aliases

arxiv: 1112.3386 · arxiv_version: 1112.3386v1 · doi: 10.48550/arxiv.1112.3386 · pith_short_12: OVKRP44W3IVI · pith_short_16: OVKRP44W3IVIX5CV · pith_short_8: OVKRP44W

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/OVKRP44W3IVIX5CVSJULIAMUZN \
  | 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: 755517f396da2a8bf4559268b40194cb66c0c77996689688032221b83b341a23

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "89682aa514c0f4553baea5e88d4b194e08df623290794d639d87bcf21f07209e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2011-12-14T23:04:00Z",
    "title_canon_sha256": "8851f1e00cec77f9c886bac62f41d87b89061debab9ff9b6d453a741b67b1682"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1112.3386",
    "kind": "arxiv",
    "version": 1
  }
}