Pith Number

pith:26ILDBY4

pith:2008:26ILDBY4MR2XRV5ZNZRS62DAS6

not attested not anchored not stored refs pending

A second-order identity for the Riemann tensor and applications

Carlo Alberto Mantica, Luca Guido Molinari

arxiv:0802.0650 v2 · 2008-02-05 · 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{26ILDBY4MR2XRV5ZNZRS62DAS6}

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	2026-05-18T04:02:15.406596Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d790b1871c647578d7b96e632f686097974889e7be77e63e6eaa39a271b9e776

Aliases

arxiv: 0802.0650 · arxiv_version: 0802.0650v2 · doi: 10.48550/arxiv.0802.0650 · pith_short_12: 26ILDBY4MR2X · pith_short_16: 26ILDBY4MR2XRV5Z · pith_short_8: 26ILDBY4

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/26ILDBY4MR2XRV5ZNZRS62DAS6 \
  | 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: d790b1871c647578d7b96e632f686097974889e7be77e63e6eaa39a271b9e776

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "47058f0f6040ab28e702f9fbee4832ce20408c328be3569cc20a7e91f443f1be",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2008-02-05T15:57:03Z",
    "title_canon_sha256": "1339e811c204873af6e5fe760dbd8e0bd34463bd6771345d22c3cf81c6bc3b9b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0802.0650",
    "kind": "arxiv",
    "version": 2
  }
}