Pith Number

pith:UPYJEEZP

pith:2019:UPYJEEZPN7EIRR45ZMDMUKGCQA

not attested not anchored not stored refs pending

Exact Solutions in Poincar\'e Gauge Gravity Theory

Yuri N. Obukhov

arxiv:1905.11906 v1 · 2019-05-28 · gr-qc · 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{UPYJEEZPN7EIRR45ZMDMUKGCQA}

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	2026-05-17T23:44:49.957244Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a3f092132f6fc888c79dcb06ca28c2800c6c766feae37514a64f3c2416200d7f

Aliases

arxiv: 1905.11906 · arxiv_version: 1905.11906v1 · doi: 10.48550/arxiv.1905.11906 · pith_short_12: UPYJEEZPN7EI · pith_short_16: UPYJEEZPN7EIRR45 · pith_short_8: UPYJEEZP

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/UPYJEEZPN7EIRR45ZMDMUKGCQA \
  | 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: a3f092132f6fc888c79dcb06ca28c2800c6c766feae37514a64f3c2416200d7f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ccba5eefb318aac60125e6157b4d368d96d4556a18b8ea907d2c4c8d2a30a80b",
    "cross_cats_sorted": [
      "hep-th"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2019-05-28T16:06:36Z",
    "title_canon_sha256": "eff89fbca746be9499980ec4d1b1f7162b57e6d0487227851ab01618399fe3a2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1905.11906",
    "kind": "arxiv",
    "version": 1
  }
}