Pith Number

pith:BSZ4QVET

pith:2019:BSZ4QVETTN3TPLPKMVCJFJ6KQ2

not attested not anchored not stored refs pending

Searching for the Donor Stars of ULX Pulsars

D.J. Walton, D. Stern, F.A. Harrison, F. F\"urst, M. Brightman, M. Heida

arxiv:1901.03776 v1 · 2019-01-12 · 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{BSZ4QVETTN3TPLPKMVCJFJ6KQ2}

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	2026-05-17T23:54:15.266826Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0cb3c854939b7737adea654492a7ca86858de0ab5c23155f0df43adcd4e8a621

Aliases

arxiv: 1901.03776 · arxiv_version: 1901.03776v1 · doi: 10.48550/arxiv.1901.03776 · pith_short_12: BSZ4QVETTN3T · pith_short_16: BSZ4QVETTN3TPLPK · pith_short_8: BSZ4QVET

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/BSZ4QVETTN3TPLPKMVCJFJ6KQ2 \
  | 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: 0cb3c854939b7737adea654492a7ca86858de0ab5c23155f0df43adcd4e8a621

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f557b4bde04f1c710d808418934584fb7a88387df5c5c3c2c09952ac9144a7d6",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2019-01-12T00:46:23Z",
    "title_canon_sha256": "56d133d9b0f150b64b23c717d96fcf83c5e317a8d260bc655c30baf2ea019d69"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1901.03776",
    "kind": "arxiv",
    "version": 1
  }
}