Pith Number

pith:V3J6ONYH

pith:2017:V3J6ONYHKQKSNWIMGUJWBPVLFR

not attested not anchored not stored refs pending

The Rational Sectional Category of Certain Universal Fibrations

Gregory Lupton, Samuel Bruce Smith

arxiv:1701.06695 v1 · 2017-01-24 · 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{V3J6ONYHKQKSNWIMGUJWBPVLFR}

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	2026-05-18T00:52:12.343795Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

aed3e73707541526d90c351360beab2c599a3251d57c513cf04dab812ae8a90d

Aliases

arxiv: 1701.06695 · arxiv_version: 1701.06695v1 · doi: 10.48550/arxiv.1701.06695 · pith_short_12: V3J6ONYHKQKS · pith_short_16: V3J6ONYHKQKSNWIM · pith_short_8: V3J6ONYH

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/V3J6ONYHKQKSNWIMGUJWBPVLFR \
  | 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: aed3e73707541526d90c351360beab2c599a3251d57c513cf04dab812ae8a90d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3d1741bd7a1a30562a7838afc5ce5d1025476653ff3193af8a64eae0dd4af60f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AT",
    "submitted_at": "2017-01-24T00:36:59Z",
    "title_canon_sha256": "9eeca7e3c5cbe82ca5ee73dc41e1db76ecf0b07534a4ca93e00c829e85dacf8d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1701.06695",
    "kind": "arxiv",
    "version": 1
  }
}