Pith Number

pith:BOFP3IOU

pith:1998:BOFP3IOUPNHA46HK3GO27XIUT4

not attested not anchored not stored refs pending

Is TW Pictoris really an intermediate polar?

(2) Keele University), A. J. Norton (1), A. P. Beardmore (2) ((1) Open University

arxiv:astro-ph/9810234 v1 · 1998-10-15 · astro-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{BOFP3IOUPNHA46HK3GO27XIUT4}

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	2026-07-04T14:16:06.814516Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0b8afda1d47b4e0e78ead99dafdd149f1b53044a46dd1f9b6a77ff3be3e823cb

Aliases

arxiv: astro-ph/9810234 · arxiv_version: astro-ph/9810234v1 · doi: 10.48550/arxiv.astro-ph/9810234 · pith_short_12: BOFP3IOUPNHA · pith_short_16: BOFP3IOUPNHA46HK · pith_short_8: BOFP3IOU

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/BOFP3IOUPNHA46HK3GO27XIUT4 \
  | 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: 0b8afda1d47b4e0e78ead99dafdd149f1b53044a46dd1f9b6a77ff3be3e823cb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2c596180578fbd0d6bf72871e3d532542e8bf22654d5f8c988a33e54e877dba0",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1998-10-15T14:23:49Z",
    "title_canon_sha256": "f678205914cf0348bf58c812886ca66adaedbb70e43ea35b6c95d9b64e91539e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9810234",
    "kind": "arxiv",
    "version": 1
  }
}