Pith Number

pith:Q5CYTXOD

pith:2016:Q5CYTXODFYJXRWKGC5KPPJNK7S

not attested not anchored not stored refs pending

Endomorphisms of Exotic Models

Carolyn Yarnall, Constanze Roitzheim, Eugenia Ellis, Laura Scull

arxiv:1609.06219 v2 · 2016-09-20 · 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{Q5CYTXODFYJXRWKGC5KPPJNK7S}

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	2026-05-17T23:50:16.593126Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

874589ddc32e1378d9461754f7a5aafcb63a64452f17d330c763a7bfe575c82a

Aliases

arxiv: 1609.06219 · arxiv_version: 1609.06219v2 · doi: 10.48550/arxiv.1609.06219 · pith_short_12: Q5CYTXODFYJX · pith_short_16: Q5CYTXODFYJXRWKG · pith_short_8: Q5CYTXOD

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/Q5CYTXODFYJXRWKGC5KPPJNK7S \
  | 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: 874589ddc32e1378d9461754f7a5aafcb63a64452f17d330c763a7bfe575c82a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fa3802f1d7727d37a286fb2ac60cb97ae2e4a84731bb58e3da8d2a6ba90b1e43",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AT",
    "submitted_at": "2016-09-20T15:23:46Z",
    "title_canon_sha256": "b3fa3a6b14951e297ae18caafdb93e43fc51d734c0c5a5710db664a83e541919"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1609.06219",
    "kind": "arxiv",
    "version": 2
  }
}