Pith Number

pith:ULQVFISB

pith:2015:ULQVFISBZKZC6E5ZTFXVZAPGTM

not attested not anchored not stored refs pending

Automatised classification of WISE sources: first results, future prospects

Agnieszka Kurcz, Agnieszka Pollo, Aleksandra Solarz, Katarzyna Ma{\l}ek, Maciej Bilicki, Magdalena Krupa

arxiv:1512.03604 v1 · 2015-12-11 · astro-ph.GA · astro-ph.CO · astro-ph.IM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ULQVFISBZKZC6E5ZTFXVZAPGTM}

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	2026-05-18T01:24:31.934045Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a2e152a241cab22f13b9996f5c81e69b3dc5297284e1a29db09c34a82a4a2250

Aliases

arxiv: 1512.03604 · arxiv_version: 1512.03604v1 · doi: 10.48550/arxiv.1512.03604 · pith_short_12: ULQVFISBZKZC · pith_short_16: ULQVFISBZKZC6E5Z · pith_short_8: ULQVFISB

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/ULQVFISBZKZC6E5ZTFXVZAPGTM \
  | 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: a2e152a241cab22f13b9996f5c81e69b3dc5297284e1a29db09c34a82a4a2250

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f81957d2472d1a6ed3c95e012f4434112a980312cca49022d6983c35bf81f8a3",
    "cross_cats_sorted": [
      "astro-ph.CO",
      "astro-ph.IM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2015-12-11T11:37:46Z",
    "title_canon_sha256": "51b06bff226064ece72de8c1d400c0b2cb7554579a729320d0972270bf0a440b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1512.03604",
    "kind": "arxiv",
    "version": 1
  }
}