Pith Number

pith:NV45YQX3

pith:2019:NV45YQX3FL7B2UEWFM47LFNW2I

not attested not anchored not stored refs pending

NuSTAR Uncovers an Extremely Local Compton-thick AGN in NGC 4968

Andrew F. Ptak, N. A. Levenson, Panayiotis Tzanavaris, Peter G. Boorman, Poshak Gandhi, Stephanie M. LaMassa, Tahir Yaqoob, Timothy M. Heckman

arxiv:1911.05813 v1 · 2019-11-13 · astro-ph.HE · 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{NV45YQX3FL7B2UEWFM47LFNW2I}

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	2026-07-05T00:32:05.295923Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6d79dc42fb2afe1d50962b39f595b6d21bf80597493c296d4253341e5de62fc7

Aliases

arxiv: 1911.05813 · arxiv_version: 1911.05813v1 · doi: 10.48550/arxiv.1911.05813 · pith_short_12: NV45YQX3FL7B · pith_short_16: NV45YQX3FL7B2UEW · pith_short_8: NV45YQX3

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/NV45YQX3FL7B2UEWFM47LFNW2I \
  | 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: 6d79dc42fb2afe1d50962b39f595b6d21bf80597493c296d4253341e5de62fc7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9fb24ddfc6cf0b9da43d970a98d1236bf9b702292d80b1e666b8177a8b8403c7",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2019-11-13T21:01:18Z",
    "title_canon_sha256": "5868923a0b254fb1e8d7c147a1616cd4869abad1cb456569c66fe99fd92260df"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1911.05813",
    "kind": "arxiv",
    "version": 1
  }
}