Pith Number

pith:ASSWXNDI

pith:2019:ASSWXNDIPRWU2L2FX5XCYJNJOG

not attested not anchored not stored refs pending

Homotopic distance between functors

D. Mosquera-Lois, E. Mac\'ias-Virg\'os

arxiv:1902.06322 v1 · 2019-02-17 · 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{ASSWXNDIPRWU2L2FX5XCYJNJOG}

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	2026-05-17T23:53:45.869606Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

04a56bb4687c6d4d2f45bf6e2c25a971b4a83d1494bf6bfac8ffe76cc278953d

Aliases

arxiv: 1902.06322 · arxiv_version: 1902.06322v1 · doi: 10.48550/arxiv.1902.06322 · pith_short_12: ASSWXNDIPRWU · pith_short_16: ASSWXNDIPRWU2L2F · pith_short_8: ASSWXNDI

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/ASSWXNDIPRWU2L2FX5XCYJNJOG \
  | 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: 04a56bb4687c6d4d2f45bf6e2c25a971b4a83d1494bf6bfac8ffe76cc278953d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "98db684cd8ffad59a2539af9c36ea24fe79a9502b2d7a2b24e3d5339c607a29b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AT",
    "submitted_at": "2019-02-17T20:32:52Z",
    "title_canon_sha256": "56ed1bd517e2f0881dc95aed2d988390933f99c00d1c150e3fb5e88f07135282"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1902.06322",
    "kind": "arxiv",
    "version": 1
  }
}