Pith Number

pith:LQKX2GVX

pith:2009:LQKX2GVXJ5LKY7I4DOWEGC5AGG

not attested not anchored not stored refs pending

The detached dust and gas shells around the carbon star U Ant

B. Gustafsson, F.L. Sch\"oier, H. Olofsson, K. Eriksson, M. Maercker

arxiv:0912.2673 v1 · 2009-12-14 · 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{LQKX2GVXJ5LKY7I4DOWEGC5AGG}

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	2026-05-18T02:10:23.856335Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5c157d1ab74f56ac7d1c1bac430ba031a52d5e0d71edae1df571c36ec54a5f6d

Aliases

arxiv: 0912.2673 · arxiv_version: 0912.2673v1 · doi: 10.48550/arxiv.0912.2673 · pith_short_12: LQKX2GVXJ5LK · pith_short_16: LQKX2GVXJ5LKY7I4 · pith_short_8: LQKX2GVX

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/LQKX2GVXJ5LKY7I4DOWEGC5AGG \
  | 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: 5c157d1ab74f56ac7d1c1bac430ba031a52d5e0d71edae1df571c36ec54a5f6d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1003fc05b95ff0c5841a26739b48dd0258de8ba8ac6d9c88f59d4809584385e2",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2009-12-14T16:06:23Z",
    "title_canon_sha256": "7603532afb7ada540719a914dcede79d9b672dad52364e0aab328409da0083ef"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0912.2673",
    "kind": "arxiv",
    "version": 1
  }
}