Pith Number

pith:EH6RNC2O

pith:2019:EH6RNC2O3WBXE5MR7BKJCUI7DM

not attested not anchored not stored refs pending

Semiclassical and Quantum Polymer Effects in the Flat Isotropic Universe

Alberto Patti, Gabriele Barca, Giovanni Montani, Paolo Di Antonio

arxiv:1902.02128 v2 · 2019-02-06 · 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{EH6RNC2O3WBXE5MR7BKJCUI7DM}

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	2026-07-05T00:55:27.283028Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

21fd168b4edd83727591f85491511f1b1af56678ff38db97269b129b4a94ce85

Aliases

arxiv: 1902.02128 · arxiv_version: 1902.02128v2 · doi: 10.48550/arxiv.1902.02128 · pith_short_12: EH6RNC2O3WBX · pith_short_16: EH6RNC2O3WBXE5MR · pith_short_8: EH6RNC2O

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/EH6RNC2O3WBXE5MR7BKJCUI7DM \
  | 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: 21fd168b4edd83727591f85491511f1b1af56678ff38db97269b129b4a94ce85

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "dce4d2ce416cd6f2483913b18e6925c204aa06e5404d35e80aed819f81a6980a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2019-02-06T11:57:23Z",
    "title_canon_sha256": "d016c2db6bb894ccdb0b964c95bfda179baa87d5e05d748e0f37f4a238096bc0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1902.02128",
    "kind": "arxiv",
    "version": 2
  }
}