Pith Number

pith:XHF4LSD5

pith:2014:XHF4LSD5HF5AVGAYU7RHDHVPCV

not attested not anchored not stored refs pending

Discovery of Substructure in the Scatter-Broadened Image of Sgr A*

C.R. Gwinn (UCSB), M.D. Johnson (CfA Harvard-Smithsonian), Mpifr), V.A. Soglasnov (ASC Lebedev), Y.Y. Kovalev (ASC Lebedev

arxiv:1409.0530 v3 · 2014-09-01 · astro-ph.GA · 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{XHF4LSD5HF5AVGAYU7RHDHVPCV}

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	2026-05-18T02:41:16.699916Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b9cbc5c87d397a0a9818a7e2719eaf155133339fbe6e2aaeb4d52de6b27fbabc

Aliases

arxiv: 1409.0530 · arxiv_version: 1409.0530v3 · doi: 10.48550/arxiv.1409.0530 · pith_short_12: XHF4LSD5HF5A · pith_short_16: XHF4LSD5HF5AVGAY · pith_short_8: XHF4LSD5

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/XHF4LSD5HF5AVGAYU7RHDHVPCV \
  | 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: b9cbc5c87d397a0a9818a7e2719eaf155133339fbe6e2aaeb4d52de6b27fbabc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "948a36792a0fbeca200a871a495f2544ce736b185a9a0715a4d72248284f9536",
    "cross_cats_sorted": [
      "astro-ph.HE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2014-09-01T20:00:01Z",
    "title_canon_sha256": "54e81340befd5d405ff6a2a842a9f847da6bd849f55725a6a67873e828bd5344"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1409.0530",
    "kind": "arxiv",
    "version": 3
  }
}