Pith Number

pith:S4XTWKWG

pith:2012:S4XTWKWGJI4PZPSQZQLM753N7E

not attested not anchored not stored refs pending

NGC 6778: a disrupted planetary nebula around a binary central star

L. F. Miranda, M. A. Guerrero

arxiv:1201.2042 v1 · 2012-01-10 · 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{S4XTWKWGJI4PZPSQZQLM753N7E}

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	2026-05-18T01:58:53.499056Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

972f3b2ac64a38fcbe50cc16cff76df92321bb30dfa9b3bd977733a37f7b3d91

Aliases

arxiv: 1201.2042 · arxiv_version: 1201.2042v1 · doi: 10.48550/arxiv.1201.2042 · pith_short_12: S4XTWKWGJI4P · pith_short_16: S4XTWKWGJI4PZPSQ · pith_short_8: S4XTWKWG

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/S4XTWKWGJI4PZPSQZQLM753N7E \
  | 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: 972f3b2ac64a38fcbe50cc16cff76df92321bb30dfa9b3bd977733a37f7b3d91

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bffa10618b0ccd432a91fe8e508dd92f68d7c35dbab395aa402da39cf82aa53a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2012-01-10T12:48:50Z",
    "title_canon_sha256": "33d530ab420feb5ff2c9e512cd09e29c81881990bff71f46a17dbe95777271a7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1201.2042",
    "kind": "arxiv",
    "version": 1
  }
}