Pith Number

pith:G6I3OEQ5

pith:2017:G6I3OEQ5GNRT2QUBXG3LUEFTLZ

not attested not anchored not stored refs pending

Further Observational Evidence for a Critical Ionising Luminosity in Active Galaxies

C. Bignell, E. M. Sadler, H. M. Johnston, J. R. Allison, M. T. Whiting, R. W. Hunstead, S. J. Curran

arxiv:1706.06508 v2 · 2017-06-20 · 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{G6I3OEQ5GNRT2QUBXG3LUEFTLZ}

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	2026-07-05T01:31:47.001852Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3791b7121d33633d4281b9b6ba10b35e71d1fef02e29bba2d5323136c600113f

Aliases

arxiv: 1706.06508 · arxiv_version: 1706.06508v2 · doi: 10.48550/arxiv.1706.06508 · pith_short_12: G6I3OEQ5GNRT · pith_short_16: G6I3OEQ5GNRT2QUB · pith_short_8: G6I3OEQ5

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/G6I3OEQ5GNRT2QUBXG3LUEFTLZ \
  | 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: 3791b7121d33633d4281b9b6ba10b35e71d1fef02e29bba2d5323136c600113f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b800521935e07818828668b557c3ca611d66a7ce8119945e8760b7fd362d3206",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2017-06-20T15:12:56Z",
    "title_canon_sha256": "c74679c99de911df5510a41f1b45e900356255153476e4a0b864e8b2feed4ce5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1706.06508",
    "kind": "arxiv",
    "version": 2
  }
}