Pith Number

pith:T7V7CBWM

pith:2010:T7V7CBWM7RVIC2FAH33WHBW6WI

not attested not anchored not stored refs pending

Crystallographic actions on contractible algebraic manifolds

Karel Dekimpe, Nansen Petrosyan

arxiv:1007.2749 v2 · 2010-07-16 · math.GT · math.GR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{T7V7CBWM7RVIC2FAH33WHBW6WI}

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	2026-05-18T01:35:05.386049Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9febf106ccfc6a8168a03ef76386deb2028dc3a98d50549341c49852ef72292b

Aliases

arxiv: 1007.2749 · arxiv_version: 1007.2749v2 · doi: 10.48550/arxiv.1007.2749 · pith_short_12: T7V7CBWM7RVI · pith_short_16: T7V7CBWM7RVIC2FA · pith_short_8: T7V7CBWM

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/T7V7CBWM7RVIC2FAH33WHBW6WI \
  | 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: 9febf106ccfc6a8168a03ef76386deb2028dc3a98d50549341c49852ef72292b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a2d2add6ee96156001b60fa25676378891ad3a2c0223d1bf5dd1bb7d6de340bc",
    "cross_cats_sorted": [
      "math.GR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GT",
    "submitted_at": "2010-07-16T11:48:01Z",
    "title_canon_sha256": "c751eb1affc5ffd3bb1e6ac60f59cc2c0c62ffc468edaba57284718b1a19bc9e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1007.2749",
    "kind": "arxiv",
    "version": 2
  }
}