Pith Number

pith:X5HA2SWI

pith:2018:X5HA2SWIS7NRSH3SSKRWUPSX4H

not attested not anchored not stored refs pending

Fermion Production in Bouncing Cosmologies

A. Scardua, G. S. Vicente, L. F. Guimar\~aes, N. Pinto-Neto

arxiv:1807.06118 v1 · 2018-07-16 · 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{X5HA2SWIS7NRSH3SSKRWUPSX4H}

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	2026-05-18T00:03:46.147620Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bf4e0d4ac897db191f7292a36a3e57e1ea7c2402f7a79b80753cff6042fd2ace

Aliases

arxiv: 1807.06118 · arxiv_version: 1807.06118v1 · doi: 10.48550/arxiv.1807.06118 · pith_short_12: X5HA2SWIS7NR · pith_short_16: X5HA2SWIS7NRSH3S · pith_short_8: X5HA2SWI

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/X5HA2SWIS7NRSH3SSKRWUPSX4H \
  | 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: bf4e0d4ac897db191f7292a36a3e57e1ea7c2402f7a79b80753cff6042fd2ace

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "42cf7dd0f5a01be9e1907c696a7eda1a5c43ad304b0c4c2619308f385384e82a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2018-07-16T21:25:07Z",
    "title_canon_sha256": "a98eb5f00c606f3ab846bfb53de752ea3c0feac78be0bc925be43bf40a7c1586"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1807.06118",
    "kind": "arxiv",
    "version": 1
  }
}