Pith Number

pith:4M3MTXCI

pith:2009:4M3MTXCIXGXIFXFQZWED2PTQO6

not attested not anchored not stored refs pending

Circumstellar HI and CO around the carbon stars V1942 Sgr and V CrB

C. Thum, E. Gerard, J.M. Winters, L.D. Matthews, T. Le Bertre, Y. Libert

arxiv:0910.4025 v1 · 2009-10-21 · astro-ph.SR · 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{4M3MTXCIXGXIFXFQZWED2PTQO6}

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	2026-05-18T02:11:13.415403Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e336c9dc48b9ae82dcb0cd883d3e707788a12d55c691744d1904fd64a7f16bca

Aliases

arxiv: 0910.4025 · arxiv_version: 0910.4025v1 · doi: 10.48550/arxiv.0910.4025 · pith_short_12: 4M3MTXCIXGXI · pith_short_16: 4M3MTXCIXGXIFXFQ · pith_short_8: 4M3MTXCI

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/4M3MTXCIXGXIFXFQZWED2PTQO6 \
  | 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: e336c9dc48b9ae82dcb0cd883d3e707788a12d55c691744d1904fd64a7f16bca

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f94db8fb6e404065a50d907d3b56de73e56b6bb334de075064c274762258e14f",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2009-10-21T08:59:48Z",
    "title_canon_sha256": "50dbf9df5f91281c285bde1559aba6e9c465eac403890ec4900b43b566e9a5d4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0910.4025",
    "kind": "arxiv",
    "version": 1
  }
}