Pith Number

pith:EOUVTZOS

pith:2001:EOUVTZOSLZ4C5FEJAA53VQ5QVL

not attested not anchored not stored refs pending

Density Perturbations in the Ekpyrotic Scenario

Burt A. Ovrut, Justin Khoury, Neil Turok, Paul J. Steinhardt

arxiv:hep-th/0109050 v4 · 2001-09-06 · hep-th · astro-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{EOUVTZOSLZ4C5FEJAA53VQ5QVL}

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	2026-07-04T15:49:40.716702Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

23a959e5d25e782e9489003bbac3b0aad2c62f9f66c02b331f757b74851095a6

Aliases

arxiv: hep-th/0109050 · arxiv_version: hep-th/0109050v4 · doi: 10.48550/arxiv.hep-th/0109050 · pith_short_12: EOUVTZOSLZ4C · pith_short_16: EOUVTZOSLZ4C5FEJ · pith_short_8: EOUVTZOS

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/EOUVTZOSLZ4C5FEJAA53VQ5QVL \
  | 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: 23a959e5d25e782e9489003bbac3b0aad2c62f9f66c02b331f757b74851095a6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "453e1f4e74b6ba93c4fea147a2c1018123d322233ee87fad835cbc14194c1f6f",
    "cross_cats_sorted": [
      "astro-ph"
    ],
    "license": "",
    "primary_cat": "hep-th",
    "submitted_at": "2001-09-06T22:05:10Z",
    "title_canon_sha256": "e6022afe7c4f777753937b4cccaa16eb4ace612953a75f57284596579952af42"
  },
  "schema_version": "1.0",
  "source": {
    "id": "hep-th/0109050",
    "kind": "arxiv",
    "version": 4
  }
}