Pith Number

pith:64GSIHJQ

pith:2004:64GSIHJQZH5GN2WQK7C2QGEK5Y

not attested not anchored not stored refs pending

The structure of algebraic covariant derivative curvature tensors

B. Fiedler, E. Garcia-Rio, J. Diaz-Ramos, P. Gilkey

arxiv:math/0404060 v1 · 2004-04-03 · math.DG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{64GSIHJQZH5GN2WQK7C2QGEK5Y}

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	2026-05-18T01:38:28.450024Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f70d241d30c9fa66ead057c5a8188aee2d6e9ef635cd4c80f89a982b2483430b

Aliases

arxiv: math/0404060 · arxiv_version: math/0404060v1 · doi: 10.48550/arxiv.math/0404060 · pith_short_12: 64GSIHJQZH5G · pith_short_16: 64GSIHJQZH5GN2WQ · pith_short_8: 64GSIHJQ

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/64GSIHJQZH5GN2WQK7C2QGEK5Y \
  | 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: f70d241d30c9fa66ead057c5a8188aee2d6e9ef635cd4c80f89a982b2483430b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "223b07e2126c0766e0f020e8e8c6d741873c9b7566a7864a6d2fcbc7e672dc30",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "math.DG",
    "submitted_at": "2004-04-03T23:25:29Z",
    "title_canon_sha256": "92fc8cc8dafc188ae0c0545dd2f83a3739f249cf2dcb88005e8f619bb75349e6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "math/0404060",
    "kind": "arxiv",
    "version": 1
  }
}