Pith Number

pith:S4SRE5BI

pith:2013:S4SRE5BIRDUYE5IKLSZCBSFUNR

not attested not anchored not stored refs pending

Stellar Velocity Dispersion Measurements in High-Luminosity Quasar Hosts and Implications for the AGN Black Hole Mass Scale

B. M. Peterson, C. J. Grier, K. M. Dasyra, L. C. Watson, L. Ferrarese, M. C. Bentz, M. Dietrich, P. Martini, R. W. Pogge, Y. Zu

arxiv:1305.2447 v3 · 2013-05-10 · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{S4SRE5BIRDUYE5IKLSZCBSFUNR}

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	2026-05-18T01:50:03.473958Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

972512742888e982750a5cb220c8b46c5e0b970a4438012b6a71cc3d95c4bdf8

Aliases

arxiv: 1305.2447 · arxiv_version: 1305.2447v3 · doi: 10.48550/arxiv.1305.2447 · pith_short_12: S4SRE5BIRDUY · pith_short_16: S4SRE5BIRDUYE5IK · pith_short_8: S4SRE5BI

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/S4SRE5BIRDUYE5IKLSZCBSFUNR \
  | 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: 972512742888e982750a5cb220c8b46c5e0b970a4438012b6a71cc3d95c4bdf8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e670a3c93e2731081088c10c31329d24dbaba9d92747a71fde26edb99f9b8356",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2013-05-10T21:47:55Z",
    "title_canon_sha256": "ed8dd0a136adcb961a60ca0edfa441e11b30b2e2b15e5aafc9ed01b5da02f4e7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1305.2447",
    "kind": "arxiv",
    "version": 3
  }
}