Pith Number

pith:AKFZDQ67

pith:2018:AKFZDQ67D7HLGUDCQV2XRO2HW4

not attested not anchored not stored refs pending

Quasinormal mode spectra for odd parity perturbations in spacetimes with smeared matter sources

Kumar Das, Souvik Pramanik, Subir Ghosh

arxiv:1807.08517 v2 · 2018-07-23 · 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{AKFZDQ67D7HLGUDCQV2XRO2HW4}

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	2026-05-17T23:54:43.776116Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

028b91c3df1fceb35062857578bb47b734564e9bfb5203c50769b6743ab8b5a0

Aliases

arxiv: 1807.08517 · arxiv_version: 1807.08517v2 · doi: 10.48550/arxiv.1807.08517 · pith_short_12: AKFZDQ67D7HL · pith_short_16: AKFZDQ67D7HLGUDC · pith_short_8: AKFZDQ67

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/AKFZDQ67D7HLGUDCQV2XRO2HW4 \
  | 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: 028b91c3df1fceb35062857578bb47b734564e9bfb5203c50769b6743ab8b5a0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "faae9ac483265652c4a7849ff7f453dce49092dba01eb648b9ec1e3416333fa0",
    "cross_cats_sorted": [
      "gr-qc"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-th",
    "submitted_at": "2018-07-23T10:30:00Z",
    "title_canon_sha256": "b07c2c194876118ff0dbbb3465f74708697e1ff6b9bc530c0eb96d4ba4ce8a23"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1807.08517",
    "kind": "arxiv",
    "version": 2
  }
}