Pith Number

pith:UDZANPLO

pith:2013:UDZANPLOF2PJQ3B4EDUAFKLEBF

not attested not anchored not stored refs pending

Dirac quasinormal modes in spherically symmetric regular black holes

Hong Ma, Jin Li, Kai Lin

arxiv:1308.6499 v3 · 2013-08-29 · 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{UDZANPLOF2PJQ3B4EDUAFKLEBF}

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	2026-05-18T03:10:47.390612Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a0f206bd6e2e9e986c3c20e802a964094694a244e70768af04848c832867f1c1

Aliases

arxiv: 1308.6499 · arxiv_version: 1308.6499v3 · doi: 10.48550/arxiv.1308.6499 · pith_short_12: UDZANPLOF2PJ · pith_short_16: UDZANPLOF2PJQ3B4 · pith_short_8: UDZANPLO

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/UDZANPLOF2PJQ3B4EDUAFKLEBF \
  | 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: a0f206bd6e2e9e986c3c20e802a964094694a244e70768af04848c832867f1c1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8ed01b5a0f94f93fa45941482aab70e30d568d622d6a42ba9f72392b831815b1",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2013-08-29T15:47:30Z",
    "title_canon_sha256": "74b4cf69308a9d9cd9f7ac1dfc67db669c348ef339006c774bbcdcab0be35135"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1308.6499",
    "kind": "arxiv",
    "version": 3
  }
}