Pith Number

pith:VDOM23MU

pith:2013:VDOM23MUKXGW7GDIAGF3HWI544

not attested not anchored not stored refs pending

Hubble Space Telescope Observations of Dusty Filaments in Hercules A: Evidence for Entrainment

Christopher P. O'Dea, Grant R. Tremblay, Preeti Kharb, Rick A. Perley, Stefi A. Baum, William D. Cotton

arxiv:1305.4935 v1 · 2013-05-21 · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{VDOM23MUKXGW7GDIAGF3HWI544}

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	2026-05-18T01:49:48.266713Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a8dccd6d9455cd6f9868018bb3d91de706eeb6295756793f7faa96bb6b620e1d

Aliases

arxiv: 1305.4935 · arxiv_version: 1305.4935v1 · doi: 10.48550/arxiv.1305.4935 · pith_short_12: VDOM23MUKXGW · pith_short_16: VDOM23MUKXGW7GDI · pith_short_8: VDOM23MU

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/VDOM23MUKXGW7GDIAGF3HWI544 \
  | 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: a8dccd6d9455cd6f9868018bb3d91de706eeb6295756793f7faa96bb6b620e1d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "50e14cd2447e8cce49ab39cbedb62af83672ae40344c18e428b7557676510695",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2013-05-21T20:00:03Z",
    "title_canon_sha256": "6dbe8e0ac697b6f7f70f9578912479203f510f6595e024292078f38249cbb3be"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1305.4935",
    "kind": "arxiv",
    "version": 1
  }
}