Pith Number

pith:CUMISIUV

pith:2012:CUMISIUVKLPBTDRCDT5QTSN3JA

not attested not anchored not stored refs pending

GJ 581 update: Additional Evidence for a Super-Earth in the Habitable Zone

Nader Haghighipour, R. Paul Butler, Steven S. Vogt

arxiv:1207.4515 v1 · 2012-07-18 · 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{CUMISIUVKLPBTDRCDT5QTSN3JA}

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	2026-05-18T01:56:16.541113Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

151889229552de198e221cfb09c9bb481cf69626d9d0c25055507e2dcff0c17b

Aliases

arxiv: 1207.4515 · arxiv_version: 1207.4515v1 · doi: 10.48550/arxiv.1207.4515 · pith_short_12: CUMISIUVKLPB · pith_short_16: CUMISIUVKLPBTDRC · pith_short_8: CUMISIUV

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/CUMISIUVKLPBTDRCDT5QTSN3JA \
  | 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: 151889229552de198e221cfb09c9bb481cf69626d9d0c25055507e2dcff0c17b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5097f6330f4f538656784bc80484ad2d7b679092b4326afd9856411ea6354ae3",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2012-07-18T22:31:00Z",
    "title_canon_sha256": "9008fe30b87603b38c2e45b6dbbec6848d88bb8ee3ee42f681ec771855df12c8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1207.4515",
    "kind": "arxiv",
    "version": 1
  }
}