Pith Number

pith:MU5B5U64

pith:2009:MU5B5U64J4R4HPOUX4MSEHX4LY

not attested not anchored not stored refs pending

Central Charges in 2d Reduced Cosmological Massive Gravity

Edwin J. Son, Wontae Kim

arxiv:0904.4538 v2 · 2009-04-29 · hep-th · gr-qc

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{MU5B5U64J4R4HPOUX4MSEHX4LY}

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	2026-05-18T02:34:59.470275Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

653a1ed3dc4f23c3bdd4bf19221efc5e06a33041a076ab2fccc9eca74743fed8

Aliases

arxiv: 0904.4538 · arxiv_version: 0904.4538v2 · doi: 10.48550/arxiv.0904.4538 · pith_short_12: MU5B5U64J4R4 · pith_short_16: MU5B5U64J4R4HPOU · pith_short_8: MU5B5U64

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/MU5B5U64J4R4HPOUX4MSEHX4LY \
  | 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: 653a1ed3dc4f23c3bdd4bf19221efc5e06a33041a076ab2fccc9eca74743fed8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "445f388d008263fd535a7e23f3cc054d33d4e17d235c8b92765d6968eadb1a30",
    "cross_cats_sorted": [
      "gr-qc"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-th",
    "submitted_at": "2009-04-29T06:07:32Z",
    "title_canon_sha256": "3d0cf45a9e5c7625bc7a420de84c385b5d71d89f60cf30bc67216e3fb426eab0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0904.4538",
    "kind": "arxiv",
    "version": 2
  }
}