Pith Number

pith:DLCDDSIN

pith:2018:DLCDDSINFE5LVUMQAERFH7BXNW

not attested not anchored not stored refs pending

Independent Black Hole Mass Estimation for the \gamma-ray Detected Archetypal Narrow-Line Seyfert 1 Galaxy 1H 0323+342 from X-ray Variability

Chichuan Jin, Hai-Wu Pan, S. Komossa, Su Yao, Weimin Yuan

arxiv:1807.01002 v2 · 2018-07-03 · astro-ph.HE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{DLCDDSINFE5LVUMQAERFH7BXNW}

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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

Calibration of the virial factor $f$ in supermassive black hole masses of reverberation-mapped AGNs

Receipt and verification

First computed	2026-05-17T23:51:19.719289Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1ac431c90d293abad190012253fc376d8a5fcc497c5d7e73b3d0bf11fedff811

Aliases

arxiv: 1807.01002 · arxiv_version: 1807.01002v2 · doi: 10.48550/arxiv.1807.01002 · pith_short_12: DLCDDSINFE5L · pith_short_16: DLCDDSINFE5LVUMQ · pith_short_8: DLCDDSIN

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/DLCDDSINFE5LVUMQAERFH7BXNW \
  | 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: 1ac431c90d293abad190012253fc376d8a5fcc497c5d7e73b3d0bf11fedff811

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "555f02b51c7aee16292faca3b1a94d799791ef70b05676094a94f41a0a6a0285",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2018-07-03T07:38:06Z",
    "title_canon_sha256": "34090159479e3d216de9cfcee5a0edd94595c38d678bbf9886de6e89cdb03e56"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1807.01002",
    "kind": "arxiv",
    "version": 2
  }
}