Pith Number

pith:2B5PIUPA

pith:2011:2B5PIUPA7M4N5N5N4VRUB2A6U4

not attested not anchored not stored refs pending

Evidence for Pulsation-Driven Mass Loss from delta Cephei

D. Huelsman, D. L. Welch, G. Bono, G. G. Fazio, K. Y. L. Su, L. D. Matthews, M. Marengo, M. Romaniello, N. R. Evans, P. Barmby

arxiv:1112.0619 v1 · 2011-12-03 · 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{2B5PIUPA7M4N5N5N4VRUB2A6U4}

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	2026-05-18T04:07:06.129491Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d07af451e0fb38deb7ade56340e81ea70a28bd4dbe848c2cfc456e825e34bed0

Aliases

arxiv: 1112.0619 · arxiv_version: 1112.0619v1 · doi: 10.48550/arxiv.1112.0619 · pith_short_12: 2B5PIUPA7M4N · pith_short_16: 2B5PIUPA7M4N5N5N · pith_short_8: 2B5PIUPA

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/2B5PIUPA7M4N5N5N4VRUB2A6U4 \
  | 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: d07af451e0fb38deb7ade56340e81ea70a28bd4dbe848c2cfc456e825e34bed0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9e36cc9f58cb91a652fe5b915fff2256079921d67344cdbb17199f7fb456c8b3",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2011-12-03T03:35:28Z",
    "title_canon_sha256": "5e813386e8f587a9caabea51ba3dc3232ab45217490c02b2f344a005688125af"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1112.0619",
    "kind": "arxiv",
    "version": 1
  }
}