Pith Number

pith:BJYXOWSO

pith:2016:BJYXOWSODN6C6VPAVYHUMZL473

not attested not anchored not stored refs pending

The Fundamental Theorems of Affine and Projective Geometry Revisited

Boaz A. Slomka, Shiri Artstein-Avidan

arxiv:1604.01762 v1 · 2016-04-06 · math.GM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{BJYXOWSODN6C6VPAVYHUMZL473}

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	2026-05-18T01:17:32.166212Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0a71775a4e1b7c2f55e0ae0f46657cfef4588cb2eb6c73820c5dee328bd32c61

Aliases

arxiv: 1604.01762 · arxiv_version: 1604.01762v1 · doi: 10.48550/arxiv.1604.01762 · pith_short_12: BJYXOWSODN6C · pith_short_16: BJYXOWSODN6C6VPA · pith_short_8: BJYXOWSO

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/BJYXOWSODN6C6VPAVYHUMZL473 \
  | 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: 0a71775a4e1b7c2f55e0ae0f46657cfef4588cb2eb6c73820c5dee328bd32c61

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ea5a8310aafc9b68d9442431c9db339858afb2372928c6c7b7138ad213c05ccf",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GM",
    "submitted_at": "2016-04-06T18:10:50Z",
    "title_canon_sha256": "f2a3d8ae3e6bf7cf71e9200e11cfb45b903c97c98f6b0dae375973d918fd1a54"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1604.01762",
    "kind": "arxiv",
    "version": 1
  }
}