Pith Number

pith:7P4EWRTT

pith:2012:7P4EWRTTXV2PJRX5WOROJS2KYK

not attested not anchored not stored refs pending

Recalibration of the virial factor and M-sigma relation for local active galaxies

Brandon C. Kelly (UCSB), Daeseong Park (SNU), Jong-Hak Woo (SNU), Tommaso Treu (UCSB)

arxiv:1209.3773 v1 · 2012-09-17 · 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{7P4EWRTTXV2PJRX5WOROJS2KYK}

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	2026-05-18T01:54:27.223925Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fbf84b4673bd74f4c6fdb3a2e4cb4ac282758dceb375beb3cc768a24b11cf820

Aliases

arxiv: 1209.3773 · arxiv_version: 1209.3773v1 · doi: 10.48550/arxiv.1209.3773 · pith_short_12: 7P4EWRTTXV2P · pith_short_16: 7P4EWRTTXV2PJRX5 · pith_short_8: 7P4EWRTT

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/7P4EWRTTXV2PJRX5WOROJS2KYK \
  | 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: fbf84b4673bd74f4c6fdb3a2e4cb4ac282758dceb375beb3cc768a24b11cf820

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5d61991a5e5f9bf9d9d8f027c7916c8a82dbba3c628b1a9aae133ae3c752c0b4",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2012-09-17T20:00:02Z",
    "title_canon_sha256": "0a448c0ae7749b02db346c615b7ae5d2947872120bd6edabc77d8000dc85c9ce"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1209.3773",
    "kind": "arxiv",
    "version": 1
  }
}