Pith Number

pith:UHRFZQQA

pith:2012:UHRFZQQACGMYSP5TDOZKR2FWPZ

not attested not anchored not stored refs pending

The Chandra Local Volume Survey: The X-ray Point Source Population of NGC 404

A. K. H. Kong, B. Binder, B. F. Williams, D. R. Weisz, E. D. Skillman, M. Eracleous, T. J. Gaetz

arxiv:1212.2188 v1 · 2012-12-10 · astro-ph.HE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{UHRFZQQACGMYSP5TDOZKR2FWPZ}

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	2026-05-18T01:52:40.412745Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a1e25cc2001199893fb31bb2a8e8b67e530ef8885396584a4abd0628cd2d5fe5

Aliases

arxiv: 1212.2188 · arxiv_version: 1212.2188v1 · doi: 10.48550/arxiv.1212.2188 · pith_short_12: UHRFZQQACGMY · pith_short_16: UHRFZQQACGMYSP5T · pith_short_8: UHRFZQQA

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/UHRFZQQACGMYSP5TDOZKR2FWPZ \
  | 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: a1e25cc2001199893fb31bb2a8e8b67e530ef8885396584a4abd0628cd2d5fe5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fe8077b3654bfd549bba6a3b1d7f561947f603ba489850ca0b7e66063e1e90bf",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2012-12-10T20:12:01Z",
    "title_canon_sha256": "848ee491f670a350ef235801def11623a4766f107c1109be81fcd22a614c5d49"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1212.2188",
    "kind": "arxiv",
    "version": 1
  }
}