Pith Number

pith:XISKKU5S

pith:2021:XISKKU5STXKH67YRDB75HCWPXV

not attested not anchored not stored refs pending

Gravitational wave echoes from interacting quark stars

Chen Zhang

arxiv:2107.09654 v2 · 2021-07-20 · hep-ph · astro-ph.HE · 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{XISKKU5STXKH67YRDB75HCWPXV}

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	2026-07-05T03:29:17.895089Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ba24a553b29dd47f7f11187fd38acfbd7169e37ac6808c91593e025881223ece

Aliases

arxiv: 2107.09654 · arxiv_version: 2107.09654v2 · doi: 10.48550/arxiv.2107.09654 · pith_short_12: XISKKU5STXKH · pith_short_16: XISKKU5STXKH67YR · pith_short_8: XISKKU5S

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/XISKKU5STXKH67YRDB75HCWPXV \
  | 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: ba24a553b29dd47f7f11187fd38acfbd7169e37ac6808c91593e025881223ece

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a7c705d975b61310d85243dbb9fd9451bf93e7959c58bdab1e3862d404e4bada",
    "cross_cats_sorted": [
      "astro-ph.HE",
      "gr-qc"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "hep-ph",
    "submitted_at": "2021-07-20T17:39:28Z",
    "title_canon_sha256": "6c55e52578d07784ea8198f90500056efb92245cb44c9d187f773e43822546d5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2107.09654",
    "kind": "arxiv",
    "version": 2
  }
}