Pith Number

pith:ODQJUGFI

pith:2012:ODQJUGFI64DXTYKQMZ7SQPVJPG

not attested not anchored not stored refs pending

The Importance of Broad Emission-Line Widths in Single Epoch Black Hole Mass Estimates

B.M. Peterson, C.J. Grier, C.S. Kochanek, K.D. Denney, R.J. Assef, S. Frank

arxiv:1203.2617 v2 · 2012-03-12 · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ODQJUGFI64DXTYKQMZ7SQPVJPG}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

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	2026-05-18T01:58:09.742719Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

70e09a18a8f70779e150667f283ea979bc0edee551962249ab3c3720b1c98450

Aliases

arxiv: 1203.2617 · arxiv_version: 1203.2617v2 · doi: 10.48550/arxiv.1203.2617 · pith_short_12: ODQJUGFI64DX · pith_short_16: ODQJUGFI64DXTYKQ · pith_short_8: ODQJUGFI

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/ODQJUGFI64DXTYKQMZ7SQPVJPG \
  | 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: 70e09a18a8f70779e150667f283ea979bc0edee551962249ab3c3720b1c98450

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "77ec37387e1666f231cdb213ea29ccfa02c75595ae106b8ff326579a2dc50a3c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2012-03-12T20:00:05Z",
    "title_canon_sha256": "b9265bbd85b77b1a354720216690644ea0e1a1ae4e8eee360221b08167e75d81"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1203.2617",
    "kind": "arxiv",
    "version": 2
  }
}