Pith Number

pith:W4WVZVIT

pith:2017:W4WVZVITQMSRLH2HSXKR4OZ3J4

not attested not anchored not stored refs pending

WD 1145+017: Optical Activity During 2016-2017 and Limits on the X-Ray Flux

A. Vanderburg, B.L. Gary, D. Pooley, K. Mukai, S. Rappaport, S. Xu

arxiv:1709.08195 v1 · 2017-09-24 · astro-ph.EP · astro-ph.HE · 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{W4WVZVITQMSRLH2HSXKR4OZ3J4}

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	2026-05-18T00:27:43.177797Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b72d5cd5138325159f4795d51e3b3b4f0d20d45d14e36ed923120b88fc80311a

Aliases

arxiv: 1709.08195 · arxiv_version: 1709.08195v1 · doi: 10.48550/arxiv.1709.08195 · pith_short_12: W4WVZVITQMSR · pith_short_16: W4WVZVITQMSRLH2H · pith_short_8: W4WVZVIT

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/W4WVZVITQMSRLH2HSXKR4OZ3J4 \
  | 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: b72d5cd5138325159f4795d51e3b3b4f0d20d45d14e36ed923120b88fc80311a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9949a5470fb170a718284b90832c9e0221518cabba38cd169cc6f5721f153dee",
    "cross_cats_sorted": [
      "astro-ph.HE",
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2017-09-24T13:40:52Z",
    "title_canon_sha256": "18af1d85e0273ee8d06d72f9486975a153479fb87ebe0413667b250eebd03dc2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1709.08195",
    "kind": "arxiv",
    "version": 1
  }
}