Pith Number

pith:JEWRM5DI

pith:2017:JEWRM5DIWKSZFGP5NVNBLAF4R4

not attested not anchored not stored refs pending

Tests for the existence of horizons through gravitational wave echoes

Paolo Pani, Vitor Cardoso

arxiv:1709.01525 v1 · 2017-09-05 · gr-qc · astro-ph.HE · hep-ph · 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{JEWRM5DIWKSZFGP5NVNBLAF4R4}

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.

Cited by

18 papers in Pith

Neutron stars more compact than black holes as a probe of strong-field gravity

Greybody factors, reflectionless scattering modes, and echoes of ultracompact horizonless objects

Strongly Interacting Dark Matter admixed Neutron Stars

On the universality of late-time ringdown tail

Neutron stars more compact than black holes in quasi-topological gravity: Equilibrium configurations and radial stability

Receipt and verification

First computed	2026-05-18T00:35:54.873450Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

492d167468b2a59299fd6d5a1580bc8f1170334c5c132b82f1ffa1b3cb062b7f

Aliases

arxiv: 1709.01525 · arxiv_version: 1709.01525v1 · doi: 10.48550/arxiv.1709.01525 · pith_short_12: JEWRM5DIWKSZ · pith_short_16: JEWRM5DIWKSZFGP5 · pith_short_8: JEWRM5DI

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/JEWRM5DIWKSZFGP5NVNBLAF4R4 \
  | 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: 492d167468b2a59299fd6d5a1580bc8f1170334c5c132b82f1ffa1b3cb062b7f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c9fa3c8a1078752568580bfeab6dff529226d8123bc76b1ee58d5b63475158c8",
    "cross_cats_sorted": [
      "astro-ph.HE",
      "hep-ph",
      "hep-th"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2017-09-05T18:00:26Z",
    "title_canon_sha256": "b1edaca73b27a504aff35f7dd01999d137de726ff586fdadf42c8e856602b9f5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1709.01525",
    "kind": "arxiv",
    "version": 1
  }
}