Pith Number

pith:A5M23KGN

pith:2016:A5M23KGNDEH6HYRTUYV7NW64LO

not attested not anchored not stored refs pending

NEBULAR: A simple synthesis code for the hydrogen and helium nebular spectrum

Mischa Schirmer

arxiv:1608.03132 v2 · 2016-08-10 · astro-ph.IM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{A5M23KGNDEH6HYRTUYV7NW64LO}

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	2026-05-18T01:03:40.457709Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0759ada8cd190fe3e233a62bf6dbdc5b8f479ff89a02f99b056aa848900c834e

Aliases

arxiv: 1608.03132 · arxiv_version: 1608.03132v2 · doi: 10.48550/arxiv.1608.03132 · pith_short_12: A5M23KGNDEH6 · pith_short_16: A5M23KGNDEH6HYRT · pith_short_8: A5M23KGN

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/A5M23KGNDEH6HYRTUYV7NW64LO \
  | 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: 0759ada8cd190fe3e233a62bf6dbdc5b8f479ff89a02f99b056aa848900c834e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b4a0f4572b7e8b0f23f9757df843b888c888f756aab32640bb18adc6df8d1d0a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2016-08-10T11:26:11Z",
    "title_canon_sha256": "dbe561f1bf9fb8209f13c66716ed6abe40d9a4ae971ee1a27f29f110bbc6981b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1608.03132",
    "kind": "arxiv",
    "version": 2
  }
}