Pith Number

pith:NCXSYDV5

pith:2026:NCXSYDV5RIFYEXI5M2T35V3ZVJ

not attested not anchored not stored refs pending

Reference Frames and Gravitational-Wave Polarizations: Symmetry Classification and Preferred-Frame Phenomenology

Hao Li, Jie Zhu

arxiv:2607.00539 v1 · 2026-07-01 · 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{NCXSYDV5RIFYEXI5M2T35V3ZVJ}

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	2026-07-02T01:17:47.017490Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

68af2c0ebd8a0b825d1d66a7bed779aa7b62a333d06f0699798ca20a342927b5

Aliases

arxiv: 2607.00539 · arxiv_version: 2607.00539v1 · doi: 10.48550/arxiv.2607.00539 · pith_short_12: NCXSYDV5RIFY · pith_short_16: NCXSYDV5RIFYEXI5 · pith_short_8: NCXSYDV5

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/NCXSYDV5RIFYEXI5M2T35V3ZVJ \
  | 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: 68af2c0ebd8a0b825d1d66a7bed779aa7b62a333d06f0699798ca20a342927b5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "73543c2ee6c693d173ce41d85d44134ea0dd5cbadfe742bed70059549ce60da5",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2026-07-01T07:30:19Z",
    "title_canon_sha256": "1527d2eb82095faeb210918cbff06b60a90ee0bb0e477b9133b29729bab1252a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2607.00539",
    "kind": "arxiv",
    "version": 1
  }
}