Pith Number

pith:723AGALC

pith:2008:723AGALCV7GT2FQM3QTEQDTGWS

not attested not anchored not stored refs pending

Metric connections in projective differential geometry

Michael Eastwood, Vladimir S. Matveev

arxiv:0806.3998 v1 · 2008-06-24 · math.DG · math.AP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{723AGALCV7GT2FQM3QTEQDTGWS}

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	2026-05-18T04:15:06.860002Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

feb6030162afcd3d160cdc26480e66b4a29edd2ccad6300571ff7d3905549ae0

Aliases

arxiv: 0806.3998 · arxiv_version: 0806.3998v1 · doi: 10.48550/arxiv.0806.3998 · pith_short_12: 723AGALCV7GT · pith_short_16: 723AGALCV7GT2FQM · pith_short_8: 723AGALC

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/723AGALCV7GT2FQM3QTEQDTGWS \
  | 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: feb6030162afcd3d160cdc26480e66b4a29edd2ccad6300571ff7d3905549ae0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ce665f9be911e1e722418fe55b1f457fcbbf6a8225b5a038195e9441a21cde49",
    "cross_cats_sorted": [
      "math.AP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2008-06-24T22:30:00Z",
    "title_canon_sha256": "0b5e63b834c2f356567270f5d9e6ad539bed9996dbb4c5faa4d717b5dcf067a0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0806.3998",
    "kind": "arxiv",
    "version": 1
  }
}