Pith Number

pith:M4BZ3FIS

pith:2003:M4BZ3FISNXFQACK2VGCWGRX4J6

not attested not anchored not stored refs pending

Widespread acetaldehyde near the Galactic Centre

Jayaram N. Chengalur, Nissim Kanekar

arxiv:astro-ph/0304406 v1 · 2003-04-23 · 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{M4BZ3FISNXFQACK2VGCWGRX4J6}

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	2026-07-04T16:36:54.588404Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

67039d95126dcb00095aa9856346fc4f8973dc3d4c7935c2d3a2a34656fc7e06

Aliases

arxiv: astro-ph/0304406 · arxiv_version: astro-ph/0304406v1 · doi: 10.48550/arxiv.astro-ph/0304406 · pith_short_12: M4BZ3FISNXFQ · pith_short_16: M4BZ3FISNXFQACK2 · pith_short_8: M4BZ3FIS

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/M4BZ3FISNXFQACK2VGCWGRX4J6 \
  | 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: 67039d95126dcb00095aa9856346fc4f8973dc3d4c7935c2d3a2a34656fc7e06

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2079d960169e1d66e07e8fb1dc2a72b1fd81e1fe55247dc187aa5a960a40e794",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2003-04-23T05:32:14Z",
    "title_canon_sha256": "9b8f3d721155681fd65c1e3d738ef9082039deba375df77e0e0b90879f12b2d0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0304406",
    "kind": "arxiv",
    "version": 1
  }
}