Pith Number

pith:K5ZZRJ5I

pith:2012:K5ZZRJ5IBDHQLU53EKQSHHP5RH

not attested not anchored not stored refs pending

Innovative Technologies for Optical and Infrared Astronomy

C. J. Evans, C. R. Cunningham, F. Molster, F. Snik, M. A. Kenworthy, S. Kendrew

arxiv:1207.4892 v1 · 2012-07-20 · 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{K5ZZRJ5IBDHQLU53EKQSHHP5RH}

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	2026-05-18T01:56:15.856606Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

577398a7a808cf05d3bb22a1239dfd89c5ef4e7bacad6745082fa68237f06c4a

Aliases

arxiv: 1207.4892 · arxiv_version: 1207.4892v1 · doi: 10.48550/arxiv.1207.4892 · pith_short_12: K5ZZRJ5IBDHQ · pith_short_16: K5ZZRJ5IBDHQLU53 · pith_short_8: K5ZZRJ5I

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/K5ZZRJ5IBDHQLU53EKQSHHP5RH \
  | 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: 577398a7a808cf05d3bb22a1239dfd89c5ef4e7bacad6745082fa68237f06c4a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "21578bb51a5a81af2308e255e7236520bd4ce14ff985b163594eb0c16ff03d2f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2012-07-20T09:42:19Z",
    "title_canon_sha256": "94a5e6beb44a83dcbeec443846b2e0a52d4e767eaf2f844e2565ee51a5978b10"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1207.4892",
    "kind": "arxiv",
    "version": 1
  }
}