Pith Number

pith:MFZHZCI2

pith:2021:MFZHZCI2IOPGSLBZDDMTNQZVHL

not attested not anchored not stored refs pending

Gravity with Explicit Diffeomorphism Breaking

Robert Bluhm, Yumu Yang

arxiv:2104.05879 v1 · 2021-04-13 · 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{MFZHZCI2IOPGSLBZDDMTNQZVHL}

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	2026-07-05T02:31:26.197823Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

61727c891a439e692c3918d936c3353acb7f8dcb7196e833596a3c7271269809

Aliases

arxiv: 2104.05879 · arxiv_version: 2104.05879v1 · doi: 10.48550/arxiv.2104.05879 · pith_short_12: MFZHZCI2IOPG · pith_short_16: MFZHZCI2IOPGSLBZ · pith_short_8: MFZHZCI2

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/MFZHZCI2IOPGSLBZDDMTNQZVHL \
  | 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: 61727c891a439e692c3918d936c3353acb7f8dcb7196e833596a3c7271269809

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "666240bd96778d8fda7035d536038ffceb7390e27e67755a9b850a1dc3b09d00",
    "cross_cats_sorted": [
      "hep-th"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2021-04-13T00:58:01Z",
    "title_canon_sha256": "62ba08316720a60ab6165099078c7c305a2eb755cedd5a33784ad2e7fe21bf3e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2104.05879",
    "kind": "arxiv",
    "version": 1
  }
}