Pith Number

pith:FZ2W2NHC

pith:2019:FZ2W2NHC56JF2EZ7AL76WLTUIQ

not attested not anchored not stored refs pending

Dissecting the active galactic nucleus in Circinus -- II. A thin dusty disc and a polar outflow on parsec scales

Daniel Asmus, Konrad R. W. Tristram, Marko Stalevski

arxiv:1901.05488 v1 · 2019-01-16 · 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{FZ2W2NHC56JF2EZ7AL76WLTUIQ}

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	2026-05-17T23:55:10.249726Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2e756d34e2ef925d133f02ffeb2e7444378b4057ab8dae36a598a504da4829db

Aliases

arxiv: 1901.05488 · arxiv_version: 1901.05488v1 · doi: 10.48550/arxiv.1901.05488 · pith_short_12: FZ2W2NHC56JF · pith_short_16: FZ2W2NHC56JF2EZ7 · pith_short_8: FZ2W2NHC

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/FZ2W2NHC56JF2EZ7AL76WLTUIQ \
  | 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: 2e756d34e2ef925d133f02ffeb2e7444378b4057ab8dae36a598a504da4829db

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a3c6d99c3472985da6856dad18641a2c74d9d52b30dcab0ec811ad0e34a88c9a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2019-01-16T19:05:08Z",
    "title_canon_sha256": "0abcafa8c63f3f1b00b397b8181ab3d260fd9083de1c44a38d5975e50cf271ff"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1901.05488",
    "kind": "arxiv",
    "version": 1
  }
}