Pith Number

pith:4H4CZ4VW

pith:2007:4H4CZ4VWJCIQCZYYZIYTS7OUNG

not attested not anchored not stored refs pending

Introducing Cadabra: a symbolic computer algebra system for field theory problems

Kasper Peeters

arxiv:hep-th/0701238 v3 · 2007-01-25 · hep-th · gr-qc · hep-ph

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4H4CZ4VWJCIQCZYYZIYTS7OUNG}

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

3 papers in Pith

Spectrum of pure $R^2$ gravity: full Hamiltonian analysis

Gauge-invariant cosmological perturbations in Type 3 New General Relativity and background-hierarchy bounds

Hyperbolicity analysis of the linearised 3+1 formulation in the Teleparallel Equivalent of General Relativity

Receipt and verification

First computed	2026-05-18T00:19:31.366412Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e1f82cf2b64891016718ca31397dd469aa0ffbb74c9eddb0f8513e03e242bfd2

Aliases

arxiv: hep-th/0701238 · arxiv_version: hep-th/0701238v3 · doi: 10.48550/arxiv.hep-th/0701238 · pith_short_12: 4H4CZ4VWJCIQ · pith_short_16: 4H4CZ4VWJCIQCZYY · pith_short_8: 4H4CZ4VW

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/4H4CZ4VWJCIQCZYYZIYTS7OUNG \
  | 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: e1f82cf2b64891016718ca31397dd469aa0ffbb74c9eddb0f8513e03e242bfd2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9d5df35aa61ea79269c5b8a8f05dc3066089f19a08b9df21a79ebdae75722996",
    "cross_cats_sorted": [
      "gr-qc",
      "hep-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-th",
    "submitted_at": "2007-01-25T16:28:21Z",
    "title_canon_sha256": "ac5a1300c0906718fb006043ef8dc62d2b38bc6af553e0cfdf5ec17cf375787b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "hep-th/0701238",
    "kind": "arxiv",
    "version": 3
  }
}