Pith Number

pith:VDDKOBLX

pith:2015:VDDKOBLXGUAALS47TCK4MNJPUU

not attested not anchored not stored refs pending

High Spectral and Spatial Resolution Observations of the PDR Emission in the NGC2023 Reflection Nebula with SOFIA and APEX

B. Mookerjea, D. Riquelme, G. Sandell, M. A. Requena-Torres, R. Guesten, Y. Okada

arxiv:1504.03745 v1 · 2015-04-14 · 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{VDDKOBLXGUAALS47TCK4MNJPUU}

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	2026-05-18T01:59:34.809494Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a8c6a70577350005cb9f9895c6352fa5302de3b88b32b669604d85560a6ed9ad

Aliases

arxiv: 1504.03745 · arxiv_version: 1504.03745v1 · doi: 10.48550/arxiv.1504.03745 · pith_short_12: VDDKOBLXGUAA · pith_short_16: VDDKOBLXGUAALS47 · pith_short_8: VDDKOBLX

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/VDDKOBLXGUAALS47TCK4MNJPUU \
  | 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: a8c6a70577350005cb9f9895c6352fa5302de3b88b32b669604d85560a6ed9ad

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ff27cc583fffe278d568d239c842c3973463a3dbe7d25f848bd7f3e261accd02",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2015-04-14T23:47:43Z",
    "title_canon_sha256": "52cceb8c385be5624ba0e52f4f1ca0a06572d7dbfd51d1dc04d3bbc8c7aaed7d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1504.03745",
    "kind": "arxiv",
    "version": 1
  }
}