Pith Number

pith:7P4JKHXQ

pith:2015:7P4JKHXQGGLNIQ26DU2I6B4OUZ

not attested not anchored not stored refs pending

Is the Pale Blue Dot unique? Optimized photometric bands for identifying Earth-like exoplanets

Benjamin Charnay, David C. Catling, Edward W. Schwieterman, Giada Arney, Joshua Krissansen-Totton, Tyler D. Robinson, Victoria Meadows

arxiv:1512.00502 v2 · 2015-12-01 · astro-ph.EP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7P4JKHXQGGLNIQ26DU2I6B4OUZ}

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	2026-05-18T01:21:41.622759Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fbf8951ef03196d4435e1d348f078ea642f89400c1fcf156b7eced3e76ef84dc

Aliases

arxiv: 1512.00502 · arxiv_version: 1512.00502v2 · doi: 10.48550/arxiv.1512.00502 · pith_short_12: 7P4JKHXQGGLN · pith_short_16: 7P4JKHXQGGLNIQ26 · pith_short_8: 7P4JKHXQ

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/7P4JKHXQGGLNIQ26DU2I6B4OUZ \
  | 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: fbf8951ef03196d4435e1d348f078ea642f89400c1fcf156b7eced3e76ef84dc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3051d640cc21d20f6577f5904640ba71da86d6d6dac9a016c1210c38f601f5a5",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2015-12-01T22:23:15Z",
    "title_canon_sha256": "fcc812abc77b443a6304bffed29c06abea1b4f1827a1af28b499695918f73ecd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1512.00502",
    "kind": "arxiv",
    "version": 2
  }
}