Pith Number

pith:RPL2XQEN

pith:2017:RPL2XQEN4VXIEYXPGYFFWK6CAA

not attested not anchored not stored refs pending

Definable groups in topological differential fields

Fran\c{c}oise Point

arxiv:1707.07881 v1 · 2017-07-25 · math.LO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{RPL2XQEN4VXIEYXPGYFFWK6CAA}

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	2026-05-18T00:39:30.007598Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8bd7abc08de56e8262ef360a5b2bc2002fb713cce84fe0954b88ba48d7d85df0

Aliases

arxiv: 1707.07881 · arxiv_version: 1707.07881v1 · doi: 10.48550/arxiv.1707.07881 · pith_short_12: RPL2XQEN4VXI · pith_short_16: RPL2XQEN4VXIEYXP · pith_short_8: RPL2XQEN

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/RPL2XQEN4VXIEYXPGYFFWK6CAA \
  | 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: 8bd7abc08de56e8262ef360a5b2bc2002fb713cce84fe0954b88ba48d7d85df0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cebb5169659115893ef263089379468baa43154c594bf78a6f4f5b87a3a41095",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.LO",
    "submitted_at": "2017-07-25T09:41:43Z",
    "title_canon_sha256": "ec8dc9abc83e74e56080c05dac595ca1910847dcaacba14ad89e725ece81c49c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1707.07881",
    "kind": "arxiv",
    "version": 1
  }
}