Pith Number

pith:MBG5SMGL

pith:2001:MBG5SMGLZUVH3RIR6F4AUDFTQU

not attested not anchored not stored refs pending

Nebular Emission from Star-Forming Galaxies

M. Longhetti (OAB), S. Charlot (IAP/MPA)

arxiv:astro-ph/0101097 v1 · 2001-01-08 · 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{MBG5SMGLZUVH3RIR6F4AUDFTQU}

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	2026-05-18T01:40:45.045774Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

604dd930cbcd2a7dc511f1780a0cb38538c3bacbfa53727ed596266a21d74b9b

Aliases

arxiv: astro-ph/0101097 · arxiv_version: astro-ph/0101097v1 · doi: 10.48550/arxiv.astro-ph/0101097 · pith_short_12: MBG5SMGLZUVH · pith_short_16: MBG5SMGLZUVH3RIR · pith_short_8: MBG5SMGL

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/MBG5SMGLZUVH3RIR6F4AUDFTQU \
  | 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: 604dd930cbcd2a7dc511f1780a0cb38538c3bacbfa53727ed596266a21d74b9b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "214701580109e3c55b159b2b7b26e4f0ecf76828a4e46563b0431c3640289f3e",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2001-01-08T10:22:42Z",
    "title_canon_sha256": "8fc95726555469b1b5f47c5c601944a71e454f1de7a1a5949f95d629a1558c9a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0101097",
    "kind": "arxiv",
    "version": 1
  }
}