Pith Number

pith:6MPI7RV7

pith:2013:6MPI7RV7HREFQ52CLSFUEOYFWA

not attested not anchored not stored refs pending

Deep optical imaging of AGB circumstellar envelopes

C.-L. Cheung, N.Mauron, P.J. Huggins

arxiv:1302.4263 v1 · 2013-02-18 · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{6MPI7RV7HREFQ52CLSFUEOYFWA}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

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	2026-05-18T01:51:35.801308Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f31e8fc6bf3c485877425c8b423b05b02cc7fc4845a5532f24e3f1dd9178bd8d

Aliases

arxiv: 1302.4263 · arxiv_version: 1302.4263v1 · doi: 10.48550/arxiv.1302.4263 · pith_short_12: 6MPI7RV7HREF · pith_short_16: 6MPI7RV7HREFQ52C · pith_short_8: 6MPI7RV7

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/6MPI7RV7HREFQ52CLSFUEOYFWA \
  | 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: f31e8fc6bf3c485877425c8b423b05b02cc7fc4845a5532f24e3f1dd9178bd8d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b0a377af7ebc5a2d9444497e545b2d7ffc0c11415ac25c21b403985ea20b26bb",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2013-02-18T13:28:29Z",
    "title_canon_sha256": "d3e90bd4d145e426a5c89108e42d95314a350bf467af177e31cc0eeaa1fee21a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1302.4263",
    "kind": "arxiv",
    "version": 1
  }
}