Pith Number

pith:XHSCI3J4

pith:2018:XHSCI3J44H7Y3OKC6HHJ66SUEY

not attested not anchored not stored refs pending

Some exact quasi-normal frequencies of a massless scalar field in the Schwarzschild space-time

Davide Batic, Karlus Redway, Marek Nowakowski

arxiv:1807.04513 v1 · 2018-07-12 · gr-qc · astro-ph.HE · physics.space-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{XHSCI3J44H7Y3OKC6HHJ66SUEY}

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	2026-05-18T00:10:09.801642Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b9e4246d3ce1ff8db942f1ce9f7a542625a4b6402323cfdb335a10633f2bacb6

Aliases

arxiv: 1807.04513 · arxiv_version: 1807.04513v1 · doi: 10.48550/arxiv.1807.04513 · pith_short_12: XHSCI3J44H7Y · pith_short_16: XHSCI3J44H7Y3OKC · pith_short_8: XHSCI3J4

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/XHSCI3J44H7Y3OKC6HHJ66SUEY \
  | 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: b9e4246d3ce1ff8db942f1ce9f7a542625a4b6402323cfdb335a10633f2bacb6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fe1eff8ecd03118cdb4d5f99cdccba74ff55a5dd09e07d8a8d93227a7f1499e0",
    "cross_cats_sorted": [
      "astro-ph.HE",
      "physics.space-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2018-07-12T10:18:05Z",
    "title_canon_sha256": "67059fb5d2d19d281f7e58a6c2615201b3261b97428c0b79345749b760fb4d23"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1807.04513",
    "kind": "arxiv",
    "version": 1
  }
}