Pith Number

pith:F3ZP2POX

pith:2018:F3ZP2POXCQSTRYLFEZX75KTUJN

not attested not anchored not stored refs pending

Butterfly Velocity in Quadratic Gravity

Wung-Hong Huang

arxiv:1804.05527 v3 · 2018-04-16 · hep-th · 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{F3ZP2POXCQSTRYLFEZX75KTUJN}

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	2026-05-18T00:04:49.285809Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2ef2fd3dd7142538e165266ffeaa744b6c0509f309ecd92f18c73e1befbbd609

Aliases

arxiv: 1804.05527 · arxiv_version: 1804.05527v3 · doi: 10.48550/arxiv.1804.05527 · pith_short_12: F3ZP2POXCQST · pith_short_16: F3ZP2POXCQSTRYLF · pith_short_8: F3ZP2POX

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/F3ZP2POXCQSTRYLFEZX75KTUJN \
  | 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: 2ef2fd3dd7142538e165266ffeaa744b6c0509f309ecd92f18c73e1befbbd609

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0c747c94b185721c2223095bd2f9759cf10cd7cc34a9e36527e638a62346fa94",
    "cross_cats_sorted": [
      "gr-qc"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-th",
    "submitted_at": "2018-04-16T07:30:10Z",
    "title_canon_sha256": "e7a19d6d504b7ac9e372bc3554e90182f6d3f9a371ff5544f02f39532d9530aa"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1804.05527",
    "kind": "arxiv",
    "version": 3
  }
}