Pith Number

pith:DYZ76ROW

pith:2021:DYZ76ROW7VFYZJDV6ZIBHYLIHQ

not attested not anchored not stored refs pending

A Wick rotation for EPRL spin foam models

Alessandro Nicotra, Francesco Gozzini, Pietro Dona

arxiv:2106.14672 v1 · 2021-06-28 · 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{DYZ76ROW7VFYZJDV6ZIBHYLIHQ}

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

1 paper in Pith

Toller matrices and the Feynman $i\varepsilon$ in spinfoams

Receipt and verification

First computed	2026-07-05T07:48:42.802720Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1e33ff45d6fd4b8ca475f65013e1683c3dbbd475b69581e0b7434a812cd380a7

Aliases

arxiv: 2106.14672 · arxiv_version: 2106.14672v1 · doi: 10.48550/arxiv.2106.14672 · pith_short_12: DYZ76ROW7VFY · pith_short_16: DYZ76ROW7VFYZJDV · pith_short_8: DYZ76ROW

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/DYZ76ROW7VFYZJDV6ZIBHYLIHQ \
  | 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: 1e33ff45d6fd4b8ca475f65013e1683c3dbbd475b69581e0b7434a812cd380a7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bb3d42a2bafdace776a6fe05a168cad4a2bfe1ae447604ec383aad9da30c02d2",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2021-06-28T12:52:03Z",
    "title_canon_sha256": "43a0bde474c5b146d3e36377b28b63a5eb8cc8bb2e39b7cc7afacc3727f12030"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2106.14672",
    "kind": "arxiv",
    "version": 1
  }
}