Pith Number

pith:IP3Q2HBA

pith:1997:IP3Q2HBAOYPTGLNXHX7D2EAVZL

not attested not anchored not stored refs pending

Colliding waves in metric-affine gravity

Alberto Garc\'ia, Alfredo Mac\'ias, Claus L\"ammerzahl, Eckehard W. Mielke, Jos\'e Socorro

arxiv:gr-qc/9711041 v1 · 1997-11-12 · 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{IP3Q2HBAOYPTGLNXHX7D2EAVZL}

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	2026-05-18T01:09:17.557170Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

43f70d1c20761f332db73dfe3d1015cadec4ee749cf8a5c07a96330bacf24891

Aliases

arxiv: gr-qc/9711041 · arxiv_version: gr-qc/9711041v1 · doi: 10.48550/arxiv.gr-qc/9711041 · pith_short_12: IP3Q2HBAOYPT · pith_short_16: IP3Q2HBAOYPTGLNX · pith_short_8: IP3Q2HBA

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/IP3Q2HBAOYPTGLNXHX7D2EAVZL \
  | 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: 43f70d1c20761f332db73dfe3d1015cadec4ee749cf8a5c07a96330bacf24891

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3fa1fe5a7906e8bb0a25a69d17fb0f769d2fcbce65388119281ece493f53727b",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "gr-qc",
    "submitted_at": "1997-11-12T16:10:52Z",
    "title_canon_sha256": "e7a12f3d40cc6c66307d0c5b2573c46d26e6512ddfb9ce7f97114eb48cf9d6f1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "gr-qc/9711041",
    "kind": "arxiv",
    "version": 1
  }
}