Pith Number

pith:XYVWTZ5D

pith:2013:XYVWTZ5DWZO2L7FUYCHNPQODNH

not attested not anchored not stored refs pending

Matter Couplings which are Compatible with a Fundamental Theory of Physics

Israel Quiros

arxiv:1309.4529 v1 · 2013-09-18 · 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{XYVWTZ5DWZO2L7FUYCHNPQODNH}

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	2026-05-18T03:12:59.142860Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

be2b69e7a3b65da5fcb4c08ed7c1c369fb1cb72df65810acc76564ef2b4317e5

Aliases

arxiv: 1309.4529 · arxiv_version: 1309.4529v1 · doi: 10.48550/arxiv.1309.4529 · pith_short_12: XYVWTZ5DWZO2 · pith_short_16: XYVWTZ5DWZO2L7FU · pith_short_8: XYVWTZ5D

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/XYVWTZ5DWZO2L7FUYCHNPQODNH \
  | 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: be2b69e7a3b65da5fcb4c08ed7c1c369fb1cb72df65810acc76564ef2b4317e5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "17ef641d2c16512b820fb51630e7aa41e55c77f0382c1fa6aa80ff4764cc173a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2013-09-18T03:09:10Z",
    "title_canon_sha256": "c8456cb127faa6d7ade3c58624700a3628fd4d3a2e0dad94b389235429348700"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1309.4529",
    "kind": "arxiv",
    "version": 1
  }
}