Pith Number

pith:TDGUXDYZ

pith:2011:TDGUXDYZOTAH6NSUJSZIMTDADB

not attested not anchored not stored refs pending

Classical bouncing Universes from vector fields

Michal Artymowski, Zygmunt Lalak

arxiv:1109.5901 v1 · 2011-09-27 · 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{TDGUXDYZOTAH6NSUJSZIMTDADB}

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	2026-05-18T02:00:22.725799Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

98cd4b8f1974c07f36544cb2864c601866587011801656f10522ce086eea0c81

Aliases

arxiv: 1109.5901 · arxiv_version: 1109.5901v1 · doi: 10.48550/arxiv.1109.5901 · pith_short_12: TDGUXDYZOTAH · pith_short_16: TDGUXDYZOTAH6NSU · pith_short_8: TDGUXDYZ

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/TDGUXDYZOTAH6NSUJSZIMTDADB \
  | 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: 98cd4b8f1974c07f36544cb2864c601866587011801656f10522ce086eea0c81

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "94879db2af5d7b4218eafc638a84aaac4a1f48a1f2cd815e841744f4865554bd",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-th",
    "submitted_at": "2011-09-27T14:13:34Z",
    "title_canon_sha256": "61069a9f0d98b42f270090cdf0a93417ece973edb3b3f48e8654fe6e2dd1d9ad"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1109.5901",
    "kind": "arxiv",
    "version": 1
  }
}