Pith Number

pith:CMWSGTBT

pith:2013:CMWSGTBTFFCW6M76S2A3F4N4MK

not attested not anchored not stored refs pending

Understanding the Unusual X-Ray Emission Properties of the Massive, Close Binary WR 20a: A High Energy Window into the Stellar Wind Initiation Region

Enrico Ramirez-Ruiz, Fabio De Colle, Gabriela Montes, Rachel Strickler

arxiv:1309.2645 v2 · 2013-09-10 · 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{CMWSGTBTFFCW6M76S2A3F4N4MK}

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	2026-05-18T01:47:43.514790Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

132d234c3329456f33fe9681b2f1bc62ae209dc91da7e65de44976c011f1fd7c

Aliases

arxiv: 1309.2645 · arxiv_version: 1309.2645v2 · doi: 10.48550/arxiv.1309.2645 · pith_short_12: CMWSGTBTFFCW · pith_short_16: CMWSGTBTFFCW6M76 · pith_short_8: CMWSGTBT

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/CMWSGTBTFFCW6M76S2A3F4N4MK \
  | 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: 132d234c3329456f33fe9681b2f1bc62ae209dc91da7e65de44976c011f1fd7c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1e7d26f00ecd957b51941dced9770d55f60ade89cd4170524105338c7a34a61f",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2013-09-10T20:00:14Z",
    "title_canon_sha256": "b9ee5006e670916d66728d951d17d19bbec7dcf57141029204b6552cbc6b6e97"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1309.2645",
    "kind": "arxiv",
    "version": 2
  }
}