Pith Number

pith:ZDEPHD2X

pith:2020:ZDEPHD2XYSX5JR5TL5KAWT5RGZ

not attested not anchored not stored refs pending

Superradiance in dispersive black hole analogues

Sam Patrick, Silke Weinfurtner

arxiv:2007.03769 v1 · 2020-07-07 · gr-qc · physics.flu-dyn

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ZDEPHD2XYSX5JR5TL5KAWT5RGZ}

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	2026-07-05T01:46:58.848406Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c8c8f38f57c4afd4c7b35f540b4fb13664d5ed201dee6830edb5b6a822385183

Aliases

arxiv: 2007.03769 · arxiv_version: 2007.03769v1 · doi: 10.48550/arxiv.2007.03769 · pith_short_12: ZDEPHD2XYSX5 · pith_short_16: ZDEPHD2XYSX5JR5T · pith_short_8: ZDEPHD2X

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/ZDEPHD2XYSX5JR5TL5KAWT5RGZ \
  | 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: c8c8f38f57c4afd4c7b35f540b4fb13664d5ed201dee6830edb5b6a822385183

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bd41d923e860e39d23364954dd409b9cbcdda7f9e6bf1df068e16669bccb9bde",
    "cross_cats_sorted": [
      "physics.flu-dyn"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2020-07-07T20:05:36Z",
    "title_canon_sha256": "22863f5633bad6c7eeaf806d9f3c7c541129144cb1a6b4037da21f770f12a074"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2007.03769",
    "kind": "arxiv",
    "version": 1
  }
}