Pith Number

pith:YS4FCUPQ

pith:2015:YS4FCUPQL6FUSWMQ77FW3CZYHX

not attested not anchored not stored refs pending

Causal Fermion Systems -- An Overview

Felix Finster

arxiv:1505.05075 v2 · 2015-05-19 · math-ph · hep-th · 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{YS4FCUPQL6FUSWMQ77FW3CZYHX}

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	2026-05-18T01:14:36.055372Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c4b85151f05f8b495990ffcb6d8b383de9010d66a0b359b4cdb1886822d096ed

Aliases

arxiv: 1505.05075 · arxiv_version: 1505.05075v2 · doi: 10.48550/arxiv.1505.05075 · pith_short_12: YS4FCUPQL6FU · pith_short_16: YS4FCUPQL6FUSWMQ · pith_short_8: YS4FCUPQ

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/YS4FCUPQL6FUSWMQ77FW3CZYHX \
  | 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: c4b85151f05f8b495990ffcb6d8b383de9010d66a0b359b4cdb1886822d096ed

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8cc8521db093708e9356b4edd6fc5cbfac48b5d446e9d40d3f1bdefe8f879fcd",
    "cross_cats_sorted": [
      "hep-th",
      "math.MP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math-ph",
    "submitted_at": "2015-05-19T16:36:15Z",
    "title_canon_sha256": "39b0bf909a094c6726a94d5818d3990caa4399b7b57b06da4a6c7ee33b6a984e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1505.05075",
    "kind": "arxiv",
    "version": 2
  }
}