Pith Number

pith:OJL5OHLN

pith:2013:OJL5OHLNS6EIRECT2QPV4SP7RC

not attested not anchored not stored refs pending

Rational homotopy -- Sullivan models

Luc Menichi (LAREMA)

arxiv:1308.6685 v1 · 2013-08-30 · 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{OJL5OHLNS6EIRECT2QPV4SP7RC}

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	2026-05-18T03:14:38.410408Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7257d71d6d9788889053d41f5e49ff88a449fddaf4e14fb4662768d94091e68a

Aliases

arxiv: 1308.6685 · arxiv_version: 1308.6685v1 · doi: 10.48550/arxiv.1308.6685 · pith_short_12: OJL5OHLNS6EI · pith_short_16: OJL5OHLNS6EIRECT · pith_short_8: OJL5OHLN

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/OJL5OHLNS6EIRECT2QPV4SP7RC \
  | 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: 7257d71d6d9788889053d41f5e49ff88a449fddaf4e14fb4662768d94091e68a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e07ec00d2bf4386aab61c83ffc08a492e1e9235c9062c3d269ac43c1c9ae5081",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AT",
    "submitted_at": "2013-08-30T09:03:46Z",
    "title_canon_sha256": "8a53761102a058c39b471c2dee6686c755d1101ae5f8aaf4dbef390068847a20"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1308.6685",
    "kind": "arxiv",
    "version": 1
  }
}