Pith Number

pith:ILUFOYXZ

pith:2017:ILUFOYXZCFEMPVRLGW6RSVXVXQ

not attested not anchored not stored refs pending

Infinitesimal finiteness obstructions

Alexander I. Suciu, Stefan Papadima

arxiv:1711.07085 v2 · 2017-11-19 · math.AT · 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{ILUFOYXZCFEMPVRLGW6RSVXVXQ}

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	2026-05-17T23:54:56.500383Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

42e85762f91148c7d62b35bd1956f5bc0034190d86f464f65fe315b8483d6bf2

Aliases

arxiv: 1711.07085 · arxiv_version: 1711.07085v2 · doi: 10.48550/arxiv.1711.07085 · pith_short_12: ILUFOYXZCFEM · pith_short_16: ILUFOYXZCFEMPVRL · pith_short_8: ILUFOYXZ

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/ILUFOYXZCFEMPVRLGW6RSVXVXQ \
  | 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: 42e85762f91148c7d62b35bd1956f5bc0034190d86f464f65fe315b8483d6bf2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bbd1e614eac945cf0c298518920d7daabb70435dcc197cded2ef87a9ef22f9a5",
    "cross_cats_sorted": [
      "math.GR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AT",
    "submitted_at": "2017-11-19T21:34:04Z",
    "title_canon_sha256": "0c7b9233876f469d5de11f5c82b88c88e14d08cb0d4ff6222e09f3081bbc7543"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1711.07085",
    "kind": "arxiv",
    "version": 2
  }
}