Pith Number

pith:GUXI5J6P

pith:2019:GUXI5J6PA7RBR7P5GW4DPWFZA7

not attested not anchored not stored refs pending

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

Bi-Xuan Zhao, Chan Wang, Li-Ming Yu, Wei-Hao Bian, Xue Ge (NJNU)

arxiv:1907.00315 v1 · 2019-06-30 · 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{GUXI5J6PA7RBR7P5GW4DPWFZA7}

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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.

Receipt and verification

First computed	2026-05-17T23:41:07.161347Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

352e8ea7cf07e218fdfd35b837d8b907e142faf6575910e83204c714b602d81d

Aliases

arxiv: 1907.00315 · arxiv_version: 1907.00315v1 · doi: 10.48550/arxiv.1907.00315 · pith_short_12: GUXI5J6PA7RB · pith_short_16: GUXI5J6PA7RBR7P5 · pith_short_8: GUXI5J6P

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/GUXI5J6PA7RBR7P5GW4DPWFZA7 \
  | 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: 352e8ea7cf07e218fdfd35b837d8b907e142faf6575910e83204c714b602d81d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "96aadca382f31e44c385ac5ae78595968254f13f747685873841ba91d133ba7f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2019-06-30T03:46:41Z",
    "title_canon_sha256": "3ec10ed003c37bfab724865bfd31a7f5435b674ff7c9eb780185d4507f882862"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1907.00315",
    "kind": "arxiv",
    "version": 1
  }
}