Pith Number

pith:HPTEY3J5

pith:2021:HPTEY3J5ZVYDNA6HVPN7TMEOAX

not attested not anchored not stored refs pending

Discretization of 4d Poincar\'e BF theory: from groups to 2-groups

Florian Girelli, Panagiotis Tsimiklis

arxiv:2105.01817 v1 · 2021-05-05 · hep-th · gr-qc · math-ph · math.MP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{HPTEY3J5ZVYDNA6HVPN7TMEOAX}

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	2026-07-05T04:52:24.260790Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3be64c6d3dcd703683c7abdbf9b08e05d3816ea9cc6d026c3cf7053d8cb89d03

Aliases

arxiv: 2105.01817 · arxiv_version: 2105.01817v1 · doi: 10.48550/arxiv.2105.01817 · pith_short_12: HPTEY3J5ZVYD · pith_short_16: HPTEY3J5ZVYDNA6H · pith_short_8: HPTEY3J5

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/HPTEY3J5ZVYDNA6HVPN7TMEOAX \
  | 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: 3be64c6d3dcd703683c7abdbf9b08e05d3816ea9cc6d026c3cf7053d8cb89d03

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "524b49c14026d219d52f9cfeeaec6e8375cbbdd889b412807ac8bfacc956e998",
    "cross_cats_sorted": [
      "gr-qc",
      "math-ph",
      "math.MP"
    ],
    "license": "http://creativecommons.org/licenses/by-sa/4.0/",
    "primary_cat": "hep-th",
    "submitted_at": "2021-05-05T01:16:10Z",
    "title_canon_sha256": "2e3b065b4b137aaf8360ec227d242deeb79b4faf96f5c114d96e06b0e2a0f140"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2105.01817",
    "kind": "arxiv",
    "version": 1
  }
}