Pith Number

pith:QRZDXO4Z

pith:2017:QRZDXO4ZWZTHRFT5PZWDJR5YGK

not attested not anchored not stored refs pending

Revisiting LS I +61 303 with VLBI astrometry

B. Zhang, G. Torricelli-Ciamponi, L. Shao, M. J. Reid, M. Massi, X. W. Zheng, Y. W. Wu

arxiv:1711.07598 v1 · 2017-11-21 · astro-ph.GA · astro-ph.HE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QRZDXO4ZWZTHRFT5PZWDJR5YGK}

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	2026-05-18T00:27:17.766880Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

84723bbb99b66678967d7e6c34c7b832a3ddaf85a99bed4b745c00d9c20c7bf9

Aliases

arxiv: 1711.07598 · arxiv_version: 1711.07598v1 · doi: 10.48550/arxiv.1711.07598 · pith_short_12: QRZDXO4ZWZTH · pith_short_16: QRZDXO4ZWZTHRFT5 · pith_short_8: QRZDXO4Z

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/QRZDXO4ZWZTHRFT5PZWDJR5YGK \
  | 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: 84723bbb99b66678967d7e6c34c7b832a3ddaf85a99bed4b745c00d9c20c7bf9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "025c220536c3596b3360dd1a6073b42880c1595b1b127d451bee1999befed313",
    "cross_cats_sorted": [
      "astro-ph.HE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2017-11-21T01:38:05Z",
    "title_canon_sha256": "b0d6c74cd1e2916483e5e96c27e6327c6bf81e827b2b6e18ed971bdade148180"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1711.07598",
    "kind": "arxiv",
    "version": 1
  }
}