Pith Number

pith:L5UYEQHK

pith:2011:L5UYEQHK2EYO66APBPF4AP6N4B

not attested not anchored not stored refs pending

Observational Constraints on Companions inside of 10 AU in the HR 8799 Planetary System

2), (3) Sydney University, (4) Hubble Fellow, Adam L. Kraus (4) ((1) Caltech (2) Sagan Fellow, Institute for Astronomy, John M. Carpenter (1), Michael J. Ireland (3), Sasha Hinkley (1, University of Hawaii)

arxiv:1102.3914 v1 · 2011-02-18 · 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{L5UYEQHK2EYO66APBPF4AP6N4B}

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	2026-05-18T02:03:09.252847Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5f698240ead130ef780f0bcbc03fcde06938c2abad8698b05b4bb1a1bebce558

Aliases

arxiv: 1102.3914 · arxiv_version: 1102.3914v1 · doi: 10.48550/arxiv.1102.3914 · pith_short_12: L5UYEQHK2EYO · pith_short_16: L5UYEQHK2EYO66AP · pith_short_8: L5UYEQHK

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/L5UYEQHK2EYO66APBPF4AP6N4B \
  | 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: 5f698240ead130ef780f0bcbc03fcde06938c2abad8698b05b4bb1a1bebce558

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "82fdcd967a10028e77a0809a8197b7a10694aa77c11b07cf805739074eddfbb2",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2011-02-18T21:00:01Z",
    "title_canon_sha256": "4527bf86b9d6355d2d02000d2b0e7344f93629b9ea1d81b0772d7dabd464b4fc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1102.3914",
    "kind": "arxiv",
    "version": 1
  }
}