Pith Number

pith:D7WQD5ZS

pith:2011:D7WQD5ZS6OF3FG3VPXVBORVTWC

not attested not anchored not stored refs pending

On the circumstellar medium of massive stars and how it may appear in GRB observations

Allard Jan van Marle, Norbert Langer, Rony Keppens, Sung-Chul Yoon

arxiv:1110.3142 v1 · 2011-10-14 · astro-ph.SR · astro-ph.HE · astro-ph.IM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{D7WQD5ZS6OF3FG3VPXVBORVTWC}

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	2026-05-18T04:10:57.947117Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1fed01f732f38bb29b757dea1746b3b09a99deb0b691af430b1ddcb1f2130eda

Aliases

arxiv: 1110.3142 · arxiv_version: 1110.3142v1 · doi: 10.48550/arxiv.1110.3142 · pith_short_12: D7WQD5ZS6OF3 · pith_short_16: D7WQD5ZS6OF3FG3V · pith_short_8: D7WQD5ZS

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/D7WQD5ZS6OF3FG3VPXVBORVTWC \
  | 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: 1fed01f732f38bb29b757dea1746b3b09a99deb0b691af430b1ddcb1f2130eda

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8bd6ad5acfc409a1631877c23c85b2ca92b4c8b1190350b413579fcde6cccbc6",
    "cross_cats_sorted": [
      "astro-ph.HE",
      "astro-ph.IM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2011-10-14T08:22:59Z",
    "title_canon_sha256": "ceb10c5e4c9c96852eaaa2955684316088b86877fba1ded7a29cfab07b28073e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1110.3142",
    "kind": "arxiv",
    "version": 1
  }
}