Pith Number

pith:N3P5D2HT

pith:2012:N3P5D2HTCFLMH5R7E7IBRUJ2FS

not attested not anchored not stored refs pending

Discovery of a halo around the Helix Nebula NGC 7293 in the WISE all-sky survey

Chih-Hao Hsia, Sun Kwok, Yong Zhang

arxiv:1207.4606 v3 · 2012-07-19 · astro-ph.SR · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{N3P5D2HTCFLMH5R7E7IBRUJ2FS}

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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.

Cited by

1 paper in Pith

Numerous bow shocks in the outer Helix Nebula

Receipt and verification

First computed	2026-05-18T01:56:16.338295Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6edfd1e8f31156c3f63f27d018d13a2c90f0b22500afdcb1bcb164669be4168c

Aliases

arxiv: 1207.4606 · arxiv_version: 1207.4606v3 · doi: 10.48550/arxiv.1207.4606 · pith_short_12: N3P5D2HTCFLM · pith_short_16: N3P5D2HTCFLMH5R7 · pith_short_8: N3P5D2HT

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/N3P5D2HTCFLMH5R7E7IBRUJ2FS \
  | 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: 6edfd1e8f31156c3f63f27d018d13a2c90f0b22500afdcb1bcb164669be4168c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "55b361a20bfcee2d2c40d97d06910e6ec11ca67c3bd50768ba6c6e9483186324",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2012-07-19T10:27:46Z",
    "title_canon_sha256": "ed3a349e90303ed46ce1b6d4fa9c9178a89deffdb7eb6eaac5490ccf042d03a1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1207.4606",
    "kind": "arxiv",
    "version": 3
  }
}