Pith Number

pith:ZJKIIQBG

pith:2013:ZJKIIQBGQKKF5OXM3GIMFSG5RS

not attested not anchored not stored refs pending

ALMA observations of the variable 12CO/13CO ratio around the asymptotic giant branch star R Sculptoris

F. Kerschbaum, H. Olofsson, M.A.T. Groenewegen, M. Brunner, M. Lindqvist, M. Maercker, M. Wittkowski, S. Mohamed, S. Ramstedt, W.H.T. Vlemmings

arxiv:1308.3703 v1 · 2013-08-16 · astro-ph.SR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ZJKIIQBGQKKF5OXM3GIMFSG5RS}

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	2026-05-18T03:15:42.807722Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ca5484402682945ebaecd990c2c8dd8c838c49ef865d43a8d4f5fe287a2b32dc

Aliases

arxiv: 1308.3703 · arxiv_version: 1308.3703v1 · doi: 10.48550/arxiv.1308.3703 · pith_short_12: ZJKIIQBGQKKF · pith_short_16: ZJKIIQBGQKKF5OXM · pith_short_8: ZJKIIQBG

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/ZJKIIQBGQKKF5OXM3GIMFSG5RS \
  | 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: ca5484402682945ebaecd990c2c8dd8c838c49ef865d43a8d4f5fe287a2b32dc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7cd9319d2c5faffe66ac0570f22a18f0f7ff716f7fa928467929a2065c9c63d3",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2013-08-16T20:00:01Z",
    "title_canon_sha256": "802219445ca5024ba345cea2af83e92272223636ee607ff96b46f75dc7ce43e9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1308.3703",
    "kind": "arxiv",
    "version": 1
  }
}