Pith Number

pith:2ARLYPL5

pith:2017:2ARLYPL5B4UPEXK6R32KFSFQ6D

not attested not anchored not stored refs pending

The 2-dimensional stable homotopy hypothesis

Ang\'elica M. Osorno, Nick Gurski, Niles Johnson

arxiv:1712.07218 v2 · 2017-12-19 · math.AT · math.CT · math.KT

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{2ARLYPL5B4UPEXK6R32KFSFQ6D}

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	2026-05-17T23:47:31.665034Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d022bc3d7d0f28f25d5e8ef4a2c8b0f0de963e05234cb222267b5e866ebb5f76

Aliases

arxiv: 1712.07218 · arxiv_version: 1712.07218v2 · doi: 10.48550/arxiv.1712.07218 · pith_short_12: 2ARLYPL5B4UP · pith_short_16: 2ARLYPL5B4UPEXK6 · pith_short_8: 2ARLYPL5

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/2ARLYPL5B4UPEXK6R32KFSFQ6D \
  | 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: d022bc3d7d0f28f25d5e8ef4a2c8b0f0de963e05234cb222267b5e866ebb5f76

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ba998e962d8b7e6cb505978cedcce82f308ef9f18fd896b606c44c749faf2b2a",
    "cross_cats_sorted": [
      "math.CT",
      "math.KT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AT",
    "submitted_at": "2017-12-19T21:19:00Z",
    "title_canon_sha256": "e57ca565f6a4d0304b96352e61749d08c4f683ac0c60d103d26b58bb769c679d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1712.07218",
    "kind": "arxiv",
    "version": 2
  }
}