Pith Number

pith:GBSPSY5K

pith:2003:GBSPSY5KBTPQ2WK4W3PYVYQIJL

not attested not anchored not stored refs pending

Dense gas in nearby galaxies: XV. Hot ammonia in NGC253, Maffei2 and IC342

A.B. Peck, A. Weiss, C. Henkel, R. Mauersberger, Y. Hagiwara

arxiv:astro-ph/0303247 v1 · 2003-03-12 · 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{GBSPSY5KBTPQ2WK4W3PYVYQIJL}

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	2026-07-04T16:36:38.663336Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3064f963aa0cdf0d595cb6df8ae2084af008efa52ac73bd051a04e4b569ffeeb

Aliases

arxiv: astro-ph/0303247 · arxiv_version: astro-ph/0303247v1 · doi: 10.48550/arxiv.astro-ph/0303247 · pith_short_12: GBSPSY5KBTPQ · pith_short_16: GBSPSY5KBTPQ2WK4 · pith_short_8: GBSPSY5K

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/GBSPSY5KBTPQ2WK4W3PYVYQIJL \
  | 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: 3064f963aa0cdf0d595cb6df8ae2084af008efa52ac73bd051a04e4b569ffeeb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4c45311583297ba785b7ccfca822734989679fadc1a9f9d40f7ca6c83b563d88",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2003-03-12T08:47:31Z",
    "title_canon_sha256": "6313fc2234ad241a832f963db06d3da8be6695bed80edc34e10ab5aec14e3b7c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0303247",
    "kind": "arxiv",
    "version": 1
  }
}