Pith Number

pith:Q2QBVVBM

pith:2018:Q2QBVVBMMD2INCHVHDRDJC2FRN

not attested not anchored not stored refs pending

Classical evolution of subspaces

Arkady A. Popov, Sergey G. Rubin, Yana Lyakhova

arxiv:1807.06235 v1 · 2018-07-17 · gr-qc · hep-th · math-ph · math.MP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{Q2QBVVBMMD2INCHVHDRDJC2FRN}

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	2026-07-05T00:28:21.739198Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

86a01ad42c60f48688f538e2348b458b537e0bb19df876aa5ab99aed74264fd2

Aliases

arxiv: 1807.06235 · arxiv_version: 1807.06235v1 · doi: 10.48550/arxiv.1807.06235 · pith_short_12: Q2QBVVBMMD2I · pith_short_16: Q2QBVVBMMD2INCHV · pith_short_8: Q2QBVVBM

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/Q2QBVVBMMD2INCHVHDRDJC2FRN \
  | 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: 86a01ad42c60f48688f538e2348b458b537e0bb19df876aa5ab99aed74264fd2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b1c2447ee457679c6e6f3daec1f56c67836fb5c966e021a0588254cb195a7fbb",
    "cross_cats_sorted": [
      "hep-th",
      "math-ph",
      "math.MP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2018-07-17T06:06:00Z",
    "title_canon_sha256": "987c993c6c701cd2b3b423018fdb1db6bd152bc8d4a5690ae89bd2149c9cde86"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1807.06235",
    "kind": "arxiv",
    "version": 1
  }
}