Pith Number

pith:A2JWBXTD

pith:2016:A2JWBXTD5PRFLU6Y52XHSMUUBS

not attested not anchored not stored refs pending

Astrometric Monitoring of the HR 8799 Planets: Orbit Constraints from Self-Consistent Measurements

B.A. Macintosh, B. Zuckerman, C. Marois, Q.M. Konopacky, R. Galicher, S.A. Metchev, T.S. Barman

arxiv:1604.08157 v2 · 2016-04-27 · 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{A2JWBXTD5PRFLU6Y52XHSMUUBS}

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	2026-05-18T01:10:49.552725Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

069360de63ebe255d3d8eeae7932940ca6caa89afd3e0c2656f6ef163e748419

Aliases

arxiv: 1604.08157 · arxiv_version: 1604.08157v2 · doi: 10.48550/arxiv.1604.08157 · pith_short_12: A2JWBXTD5PRF · pith_short_16: A2JWBXTD5PRFLU6Y · pith_short_8: A2JWBXTD

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/A2JWBXTD5PRFLU6Y52XHSMUUBS \
  | 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: 069360de63ebe255d3d8eeae7932940ca6caa89afd3e0c2656f6ef163e748419

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e02100045aa2bd7495c6077230e43d3399281d520d181a79b6224333e8114b9a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2016-04-27T18:03:59Z",
    "title_canon_sha256": "71a40396d44ef00207d75709b76271d9659ad6140238cbee5c729b24104b6859"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1604.08157",
    "kind": "arxiv",
    "version": 2
  }
}