Pith Number

pith:M5H4EFFA

pith:2002:M5H4EFFADYU3BCE2YRKW4IONCQ

not attested not anchored not stored refs pending

Mass-Loss Rate Determination for the Massive Binary V444 Cyg using 3-D Monte-Carlo Simulations of Line and Polarization Variability

D. J. Hillier, J. M. Pittard, R. Kurosawa

arxiv:astro-ph/0203451 v1 · 2002-03-25 · 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{M5H4EFFADYU3BCE2YRKW4IONCQ}

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	2026-05-18T01:07:44.994260Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

674fc214a01e29b0889ac4556e21cd14047d2bc1a1fab200ae632f6345cfa427

Aliases

arxiv: astro-ph/0203451 · arxiv_version: astro-ph/0203451v1 · doi: 10.48550/arxiv.astro-ph/0203451 · pith_short_12: M5H4EFFADYU3 · pith_short_16: M5H4EFFADYU3BCE2 · pith_short_8: M5H4EFFA

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/M5H4EFFADYU3BCE2YRKW4IONCQ \
  | 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: 674fc214a01e29b0889ac4556e21cd14047d2bc1a1fab200ae632f6345cfa427

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7a749063c4ffb310486687042d639783b73c9638664a2ddf927c988e27130043",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2002-03-25T21:17:21Z",
    "title_canon_sha256": "4ef700e6516d85c912db1cf825372aae7e1acad3c48737f79144323f009a173c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0203451",
    "kind": "arxiv",
    "version": 1
  }
}