Pith Number

pith:OSXCZG32

pith:2019:OSXCZG323O6YMOZMXABWNZKAQ6

not attested not anchored not stored refs pending

Coarse Homotopy on metric Spaces and their Corona

Elisa Hartmann

arxiv:1907.03510 v1 · 2019-07-08 · math.MG · math.AT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{OSXCZG323O6YMOZMXABWNZKAQ6}

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	2026-05-17T23:41:14.431975Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

74ae2c9b7adbbd863b2cb80366e54087ad8cfe261afb48a9f1763d6afa74b6cc

Aliases

arxiv: 1907.03510 · arxiv_version: 1907.03510v1 · doi: 10.48550/arxiv.1907.03510 · pith_short_12: OSXCZG323O6Y · pith_short_16: OSXCZG323O6YMOZM · pith_short_8: OSXCZG32

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/OSXCZG323O6YMOZMXABWNZKAQ6 \
  | 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: 74ae2c9b7adbbd863b2cb80366e54087ad8cfe261afb48a9f1763d6afa74b6cc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d43615d0ca730fcf211e4fdbc876d2f36be25c8f9bdc07065599c77995039c02",
    "cross_cats_sorted": [
      "math.AT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.MG",
    "submitted_at": "2019-07-08T11:05:13Z",
    "title_canon_sha256": "5a862094b5eeefb15624e133f2254d71e04ac4b29e9342911b8e17a30cbe3a75"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1907.03510",
    "kind": "arxiv",
    "version": 1
  }
}