Pith Number

pith:QQXSFA22

pith:1999:QQXSFA227V2MDSDTHE3DCIU6O7

not attested not anchored not stored refs pending

On a class of invariant coframe operators with application to gravity

Shmuel Kaniel, Yakov Itin

arxiv:gr-qc/9907023 v1 · 1999-07-06 · 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{QQXSFA227V2MDSDTHE3DCIU6O7}

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	2026-05-18T01:39:17.895933Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

842f22835afd74c1c873393631229e77f1ee84b5080540a98a978923794c1d33

Aliases

arxiv: gr-qc/9907023 · arxiv_version: gr-qc/9907023v1 · doi: 10.48550/arxiv.gr-qc/9907023 · pith_short_12: QQXSFA227V2M · pith_short_16: QQXSFA227V2MDSDT · pith_short_8: QQXSFA22

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/QQXSFA227V2MDSDTHE3DCIU6O7 \
  | 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: 842f22835afd74c1c873393631229e77f1ee84b5080540a98a978923794c1d33

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e1176facc32d5806867f36a78225694bc5e935ab28b1125e3a31062764d32289",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "gr-qc",
    "submitted_at": "1999-07-06T15:55:23Z",
    "title_canon_sha256": "a9ae5b2b8146cab450639301baca6f11641f37bf3a423f6a7b10fab3f9fc1df2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "gr-qc/9907023",
    "kind": "arxiv",
    "version": 1
  }
}