Pith Number

pith:GVMXEYVZ

pith:2009:GVMXEYVZ4VYKS4MYG4IA52DN72

not attested not anchored not stored refs pending

Constraining spins of supermassive black holes from TeV variability. II. fully general relativistic calculations

4), CAS, CAS), China; 2. Key Laboratory for Research in Galaxies, China; 3. Yunnan Observatory, China; 4. Theoretical Physics Center for Science Facilities (TPCSF), Cosmology, Jian-Cheng Wang (3), Jian-Min Wang (1, Shu Zhang (1) (1. Institute of High Energy Physics, USTC, Yan-Rong Li (1), Ye-Fei Yuan (2)

arxiv:0904.2335 v2 · 2009-04-15 · 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{GVMXEYVZ4VYKS4MYG4IA52DN72}

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	2026-05-18T02:14:00.159502Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

35597262b9e570a9719837100ee86dfe8f976a92cfc199d4321a081209686167

Aliases

arxiv: 0904.2335 · arxiv_version: 0904.2335v2 · doi: 10.48550/arxiv.0904.2335 · pith_short_12: GVMXEYVZ4VYK · pith_short_16: GVMXEYVZ4VYKS4MY · pith_short_8: GVMXEYVZ

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/GVMXEYVZ4VYKS4MYG4IA52DN72 \
  | 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: 35597262b9e570a9719837100ee86dfe8f976a92cfc199d4321a081209686167

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1dfac0052af59009e3fcb8796792586a1f939b813fc58b906df14670156c3739",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2009-04-15T15:39:35Z",
    "title_canon_sha256": "d93bfc8e24f2769ad88d11f1f740b6807eae85ba42ac983db673aaf97a0faa38"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0904.2335",
    "kind": "arxiv",
    "version": 2
  }
}