Pith Number

pith:P32DTMI3

pith:2012:P32DTMI3C7HEAZZJX6KMC66CER

not attested not anchored not stored refs pending

Function contractive maps in partial metric spaces

Mihai Turinici

arxiv:1203.5678 v1 · 2012-03-26 · math.GN

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{P32DTMI3C7HEAZZJX6KMC66CER}

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	2026-05-18T03:59:14.462263Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7ef439b11b17ce406729bf94c17bc22457110f7872feaf465e88d984797a0b94

Aliases

arxiv: 1203.5678 · arxiv_version: 1203.5678v1 · doi: 10.48550/arxiv.1203.5678 · pith_short_12: P32DTMI3C7HE · pith_short_16: P32DTMI3C7HEAZZJ · pith_short_8: P32DTMI3

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/P32DTMI3C7HEAZZJX6KMC66CER \
  | 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: 7ef439b11b17ce406729bf94c17bc22457110f7872feaf465e88d984797a0b94

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cc7cd8390833b8782b3e1b8e1443fc0e4b989e9828d32fd5100f8f4001ed3f33",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GN",
    "submitted_at": "2012-03-26T14:31:28Z",
    "title_canon_sha256": "293f0ceed8bc477c859db8f6f9541ec786160c860bbb3aeb2bed85f96872f069"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1203.5678",
    "kind": "arxiv",
    "version": 1
  }
}