Pith Number

pith:UDEVV46Z

pith:2016:UDEVV46ZYVHWFFWIL3EQF3YRN2

not attested not anchored not stored refs pending

Towers and fibered products of model structures

Constanze Roitzheim, Javier J. Guti\'errez

arxiv:1602.06808 v1 · 2016-02-22 · 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{UDEVV46ZYVHWFFWIL3EQF3YRN2}

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	2026-05-18T00:50:52.342545Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a0c95af3d9c54f6296c85ec902ef116e82d8e4509d7406cc10bf0774adb43f02

Aliases

arxiv: 1602.06808 · arxiv_version: 1602.06808v1 · doi: 10.48550/arxiv.1602.06808 · pith_short_12: UDEVV46ZYVHW · pith_short_16: UDEVV46ZYVHWFFWI · pith_short_8: UDEVV46Z

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/UDEVV46ZYVHWFFWIL3EQF3YRN2 \
  | 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: a0c95af3d9c54f6296c85ec902ef116e82d8e4509d7406cc10bf0774adb43f02

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "571df241fc3c274ba1ae82b5c57a8bccf72d4e203994e7819bc7643e41ba3ff1",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AT",
    "submitted_at": "2016-02-22T15:11:03Z",
    "title_canon_sha256": "6f30ec3219f5f2a7303e54e27770fb52a2a6ba4da726ac213bafe18abde9b360"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1602.06808",
    "kind": "arxiv",
    "version": 1
  }
}