Pith Number

pith:3WPK3QGR

pith:2009:3WPK3QGRF7UHENVIU6XOTJCTS5

not attested not anchored not stored refs pending

Observational Appearance of Black Hole Winds

J. Fukue, N. Sumitomo

arxiv:0904.2800 v1 · 2009-04-18 · astro-ph.HE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{3WPK3QGRF7UHENVIU6XOTJCTS5}

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	2026-05-18T02:13:59.299246Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

dd9eadc0d12fe87236a8a7aee9a4539761ed1b7bf5d8e31f307750c04c7077ac

Aliases

arxiv: 0904.2800 · arxiv_version: 0904.2800v1 · doi: 10.48550/arxiv.0904.2800 · pith_short_12: 3WPK3QGRF7UH · pith_short_16: 3WPK3QGRF7UHENVI · pith_short_8: 3WPK3QGR

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/3WPK3QGRF7UHENVIU6XOTJCTS5 \
  | 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: dd9eadc0d12fe87236a8a7aee9a4539761ed1b7bf5d8e31f307750c04c7077ac

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "22a0fa0a24925c2a399e5d51433ac6d477a0ab6a4d979c44b3395414f92ee433",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2009-04-18T00:25:14Z",
    "title_canon_sha256": "554c28032eff47911d76633edda07fc897099cfdf7a27e4d472c6194807597a4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0904.2800",
    "kind": "arxiv",
    "version": 1
  }
}