Pith Number

pith:XQGDQ746

pith:2015:XQGDQ746DD434IEKNFKYB5A347

not attested not anchored not stored refs pending

On physical vacuum as an unobservable system

A. A. Agapov, I. K. Rozgacheva

arxiv:1504.02378 v1 · 2015-04-01 · physics.gen-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{XQGDQ746DD434IEKNFKYB5A347}

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	2026-05-18T02:19:09.021174Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bc0c387f9e18f9be208a695580f41be7dd9eeab9b7d5269682d24294ed82946a

Aliases

arxiv: 1504.02378 · arxiv_version: 1504.02378v1 · doi: 10.48550/arxiv.1504.02378 · pith_short_12: XQGDQ746DD43 · pith_short_16: XQGDQ746DD434IEK · pith_short_8: XQGDQ746

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/XQGDQ746DD434IEKNFKYB5A347 \
  | 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: bc0c387f9e18f9be208a695580f41be7dd9eeab9b7d5269682d24294ed82946a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2fa6d41f19731e6486e62294929882ea932d82683610249a7312f7cc4a9759b4",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.gen-ph",
    "submitted_at": "2015-04-01T17:21:46Z",
    "title_canon_sha256": "116db2d4c2d2366b0b57b98498136c35ed62de2c29412114117a85cd58423254"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1504.02378",
    "kind": "arxiv",
    "version": 1
  }
}