Pith Number

pith:7THPPLHW

pith:2017:7THPPLHW4RHMN7VHIXOVNGVOPU

not attested not anchored not stored refs pending

A Spacetime Geometry picture of Forest Fire Spreading and of Quantum Navigation

G.W. Gibbons

arxiv:1708.02777 v1 · 2017-08-09 · gr-qc · hep-th · quant-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{7THPPLHW4RHMN7VHIXOVNGVOPU}

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	2026-05-18T00:38:19.562501Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fccef7acf6e44ec6fea745dd569aae7d03b03df6334c95b8dc110bfedb5f1ef9

Aliases

arxiv: 1708.02777 · arxiv_version: 1708.02777v1 · doi: 10.48550/arxiv.1708.02777 · pith_short_12: 7THPPLHW4RHM · pith_short_16: 7THPPLHW4RHMN7VH · pith_short_8: 7THPPLHW

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/7THPPLHW4RHMN7VHIXOVNGVOPU \
  | 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: fccef7acf6e44ec6fea745dd569aae7d03b03df6334c95b8dc110bfedb5f1ef9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6c5fdbcba52f2d9434b26163f08b82d72fc8725cfec4e7fc9d5ff86e971d6181",
    "cross_cats_sorted": [
      "hep-th",
      "quant-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2017-08-09T10:17:31Z",
    "title_canon_sha256": "44908d5daf519fd955883cb63e3f39602b8c61f3d9947e06fe7e6255cfd1908e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1708.02777",
    "kind": "arxiv",
    "version": 1
  }
}