Pith Number

pith:3T72P24U

pith:2005:3T72P24USAKCXIWJZ63VXMYAMM

not attested not anchored not stored refs pending

Variable Star Candidates in an ACS Field of M31

Benjamin F. Williams

arxiv:astro-ph/0502294 v1 · 2005-02-15 · 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{3T72P24USAKCXIWJZ63VXMYAMM}

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	2026-05-18T01:40:34.413160Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

dcffa7eb9490142ba2c9cfb75bb30063009a1573dd3ccb441220f0e991158aa0

Aliases

arxiv: astro-ph/0502294 · arxiv_version: astro-ph/0502294v1 · doi: 10.48550/arxiv.astro-ph/0502294 · pith_short_12: 3T72P24USAKC · pith_short_16: 3T72P24USAKCXIWJ · pith_short_8: 3T72P24U

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/3T72P24USAKCXIWJZ63VXMYAMM \
  | 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: dcffa7eb9490142ba2c9cfb75bb30063009a1573dd3ccb441220f0e991158aa0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d47b59ee28b7fe6e3b8a02efb402d1e0cd5a184aa79454a2869ffdbe21bc8036",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2005-02-15T14:59:15Z",
    "title_canon_sha256": "009d486cc818a62568e379b0225a88e5f1f060c2057a047c9964cb410fe3bedf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0502294",
    "kind": "arxiv",
    "version": 1
  }
}