Pith Number

pith:JFKJSFXH

pith:2018:JFKJSFXHNKJXNIPAOQ7IEINVQC

not attested not anchored not stored refs pending

Gravitational quasinormal modes of black holes in Einstein-aether theory

Chikun Ding

arxiv:1812.07994 v1 · 2018-12-18 · gr-qc · hep-th

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{JFKJSFXHNKJXNIPAOQ7IEINVQC}

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	2026-05-17T23:57:55.241783Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

49549916e76a9376a1e0743e8221b580b59ae0f7ef1493a91ef0fbef35ef1c08

Aliases

arxiv: 1812.07994 · arxiv_version: 1812.07994v1 · doi: 10.48550/arxiv.1812.07994 · pith_short_12: JFKJSFXHNKJX · pith_short_16: JFKJSFXHNKJXNIPA · pith_short_8: JFKJSFXH

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/JFKJSFXHNKJXNIPAOQ7IEINVQC \
  | 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: 49549916e76a9376a1e0743e8221b580b59ae0f7ef1493a91ef0fbef35ef1c08

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "70a42e5429d23d00edc7832812807929d6ff2edbac3a9efc5e30c921c7dcccb4",
    "cross_cats_sorted": [
      "hep-th"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2018-12-18T00:45:58Z",
    "title_canon_sha256": "b183a57467bcbddc1896d9a853d3adead751c485412e8c358062ac5b6cee775d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1812.07994",
    "kind": "arxiv",
    "version": 1
  }
}