Pith Number

pith:5R54BM6L

pith:2011:5R54BM6L2Z7SPXJPK45NMTX7RR

not attested not anchored not stored refs pending

Detection of a planetary system orbiting the eclipsing polar HU Aqr

E.-G. Zhao, J.-J. He, J. Zhang, K. Li, L.-J. Li, L. Liu, L.-Y. Zhu, S.-B. Qian, W.-P. Liao, Z.-B. Dai

arxiv:1103.2005 v1 · 2011-03-10 · astro-ph.SR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{5R54BM6L2Z7SPXJPK45NMTX7RR}

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	2026-05-18T02:02:55.193531Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ec7bc0b3cbd67f27dd2f573ad64eff8c72123ffad3c16877b1138cf01b27c3ea

Aliases

arxiv: 1103.2005 · arxiv_version: 1103.2005v1 · doi: 10.48550/arxiv.1103.2005 · pith_short_12: 5R54BM6L2Z7S · pith_short_16: 5R54BM6L2Z7SPXJP · pith_short_8: 5R54BM6L

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/5R54BM6L2Z7SPXJPK45NMTX7RR \
  | 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: ec7bc0b3cbd67f27dd2f573ad64eff8c72123ffad3c16877b1138cf01b27c3ea

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "58f591037a62f5cbb982c59423c1d6eaa1ee9a00f0cad0a3cca5a40d2abdb510",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2011-03-10T12:13:44Z",
    "title_canon_sha256": "6d2125759cf6b5f372b04277059a053feebe106f553f439c96341b2f4a758cc0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1103.2005",
    "kind": "arxiv",
    "version": 1
  }
}