Pith Number

pith:N2JW2EFW

pith:2023:N2JW2EFWU62OLK3WTVOO4234AP

not attested not anchored not stored refs pending

Spinfoams: Foundations

Jonathan Engle, Simone Speziale

arxiv:2310.20147 v1 · 2023-10-31 · 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{N2JW2EFWU62OLK3WTVOO4234AP}

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	2026-07-05T07:07:24.754232Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6e936d10b6a7b4e5ab769d5cee6b7c03c0c76230574c8ea92e5e194564b2e0e2

Aliases

arxiv: 2310.20147 · arxiv_version: 2310.20147v1 · doi: 10.48550/arxiv.2310.20147 · pith_short_12: N2JW2EFWU62O · pith_short_16: N2JW2EFWU62OLK3W · pith_short_8: N2JW2EFW

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/N2JW2EFWU62OLK3WTVOO4234AP \
  | 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: 6e936d10b6a7b4e5ab769d5cee6b7c03c0c76230574c8ea92e5e194564b2e0e2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1b2a04107ce7791a586149e3a5085f6b26015f9d82a421b49ab1f3ae9e8e12bc",
    "cross_cats_sorted": [
      "hep-th"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2023-10-31T03:30:23Z",
    "title_canon_sha256": "5dca9cd89dcb1115cf3d8e4c7cd76b0a9900770caa62c7073cf0c3792346d500"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2310.20147",
    "kind": "arxiv",
    "version": 1
  }
}