Pith Number

pith:GFTQ5M43

pith:2014:GFTQ5M436SWZIQGIGTFRX6ELFR

not attested not anchored not stored refs pending

On background-independent renormalization of spin foam models

Benjamin Bahr

arxiv:1407.7746 v2 · 2014-07-29 · 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{GFTQ5M436SWZIQGIGTFRX6ELFR}

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	2026-05-18T02:43:10.573275Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

31670eb39bf4ad9440c834cb1bf88b2c6b8cd3e9ae5c358d2c443936726af6a5

Aliases

arxiv: 1407.7746 · arxiv_version: 1407.7746v2 · doi: 10.48550/arxiv.1407.7746 · pith_short_12: GFTQ5M436SWZ · pith_short_16: GFTQ5M436SWZIQGI · pith_short_8: GFTQ5M43

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/GFTQ5M436SWZIQGIGTFRX6ELFR \
  | 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: 31670eb39bf4ad9440c834cb1bf88b2c6b8cd3e9ae5c358d2c443936726af6a5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9b4ba211f090d90daa0ca4cad47c122edcad6969f2f10cb774f8f6e2dc8a8035",
    "cross_cats_sorted": [
      "hep-th"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2014-07-29T14:53:52Z",
    "title_canon_sha256": "9534fca92e3ee6a0e0549a0b188b5e8284010147349eb01929d2c4def4f87212"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1407.7746",
    "kind": "arxiv",
    "version": 2
  }
}