Pith Number

pith:2GKPO62G

pith:2011:2GKPO62GY4HYWJSZHXEAS7PQSK

not attested not anchored not stored refs pending

Astronomical Sky Quality Near Eureka, in the Canadian High Arctic

Eric Steinbring, James R. Drummond, William Ward

arxiv:1112.3067 v1 · 2011-12-13 · 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{2GKPO62GY4HYWJSZHXEAS7PQSK}

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	2026-05-18T01:59:10.526994Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d194f77b46c70f8b26593dc8097df092aa923277e984c2f577916430138b213d

Aliases

arxiv: 1112.3067 · arxiv_version: 1112.3067v1 · doi: 10.48550/arxiv.1112.3067 · pith_short_12: 2GKPO62GY4HY · pith_short_16: 2GKPO62GY4HYWJSZ · pith_short_8: 2GKPO62G

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/2GKPO62GY4HYWJSZHXEAS7PQSK \
  | 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: d194f77b46c70f8b26593dc8097df092aa923277e984c2f577916430138b213d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e10577b3480cce3932ea2a40acd4d4f1f4c6436edd9697ac185d9f82bb283b82",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2011-12-13T22:50:56Z",
    "title_canon_sha256": "31b074cbe499c00eb41d109ccea8dc6aad3f3b1be39d16c0984a5d3046bcdb29"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1112.3067",
    "kind": "arxiv",
    "version": 1
  }
}