Pith Number

pith:ITOS6N3N

pith:2017:ITOS6N3NZ5DITTNKPEXQJNQO23

not attested not anchored not stored refs pending

Restricting uniformly open surjections

Martin Rmoutil, Tomasz Kania

arxiv:1707.02624 v1 · 2017-07-09 · math.GN · math.LO · math.MG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ITOS6N3NZ5DITTNKPEXQJNQO23}

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	2026-05-18T00:40:36.314383Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

44dd2f376dcf4689cdaa792f04b60ed6d9e8b41dca499213807879847e661ac9

Aliases

arxiv: 1707.02624 · arxiv_version: 1707.02624v1 · doi: 10.48550/arxiv.1707.02624 · pith_short_12: ITOS6N3NZ5DI · pith_short_16: ITOS6N3NZ5DITTNK · pith_short_8: ITOS6N3N

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/ITOS6N3NZ5DITTNKPEXQJNQO23 \
  | 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: 44dd2f376dcf4689cdaa792f04b60ed6d9e8b41dca499213807879847e661ac9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d8551d28ccdf722ffcf3d7e27605b573c340c1914146f8f59fb5ad672c635f90",
    "cross_cats_sorted": [
      "math.LO",
      "math.MG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GN",
    "submitted_at": "2017-07-09T19:09:31Z",
    "title_canon_sha256": "4ad1aaba28e9e94d9c4d1a7320e57c370be0fe79f6c718c73f461d5d2c92d865"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1707.02624",
    "kind": "arxiv",
    "version": 1
  }
}