Pith Number

pith:EVK3UYS3

pith:2010:EVK3UYS3MFPQERBD2HHB5QMU5U

not attested not anchored not stored refs pending

Bound to bounce: a coupled scalar-tachyon model for a smooth bouncing/cyclic universe

Changhong Li, Lingfei Wang, Physics), Yeuk-Kwan E. Cheung (Nanjing U.

arxiv:1101.0202 v2 · 2010-12-31 · gr-qc · astro-ph.CO · 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{EVK3UYS3MFPQERBD2HHB5QMU5U}

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	2026-05-18T03:01:36.196292Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2555ba625b615f024423d1ce1ec194ed0eb2d30974297f3df6aba1c6a862038f

Aliases

arxiv: 1101.0202 · arxiv_version: 1101.0202v2 · doi: 10.48550/arxiv.1101.0202 · pith_short_12: EVK3UYS3MFPQ · pith_short_16: EVK3UYS3MFPQERBD · pith_short_8: EVK3UYS3

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/EVK3UYS3MFPQERBD2HHB5QMU5U \
  | 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: 2555ba625b615f024423d1ce1ec194ed0eb2d30974297f3df6aba1c6a862038f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2cea180cbbad6358d8407b0a5f3d9f71ea21777919d7b54f7b0d892888f59462",
    "cross_cats_sorted": [
      "astro-ph.CO",
      "hep-th"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2010-12-31T05:10:15Z",
    "title_canon_sha256": "6bd24499049576b86446d76b1dae5090cf5b417e3e773626638b9092e6cb15c6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1101.0202",
    "kind": "arxiv",
    "version": 2
  }
}