Pith Number

pith:YF4SHJZ2

pith:2013:YF4SHJZ2UOTXQKLF6VZCHSPWOF

not attested not anchored not stored refs pending

Zen and the Art of Space-Time Manufacturing

Orfeu Bertolami

arxiv:1303.2381 v1 · 2013-03-10 · gr-qc

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{YF4SHJZ2UOTXQKLF6VZCHSPWOF}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

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	2026-05-18T00:48:21.132640Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c17923a73aa3a7782965f57223c9f6716acf2a1ad92cd82ab5a868d3af5a878c

Aliases

arxiv: 1303.2381 · arxiv_version: 1303.2381v1 · doi: 10.48550/arxiv.1303.2381 · pith_short_12: YF4SHJZ2UOTX · pith_short_16: YF4SHJZ2UOTXQKLF · pith_short_8: YF4SHJZ2

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/YF4SHJZ2UOTXQKLF6VZCHSPWOF \
  | 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: c17923a73aa3a7782965f57223c9f6716acf2a1ad92cd82ab5a868d3af5a878c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fd8484e15bc1661d57b5773dab2481e643379480e1b1e2da080ac95862f8ed6c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2013-03-10T21:51:57Z",
    "title_canon_sha256": "2e029d6726eba94ba9edea5273fc096f9937cbfbfcc3238aeaf1dc0b7a55514d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1303.2381",
    "kind": "arxiv",
    "version": 1
  }
}