Pith Number

pith:DQ22RYMY

pith:2014:DQ22RYMYRPJQRZ3S2PNBOST37C

not attested not anchored not stored refs pending

Adams filtration and generalized Hurewicz maps for infinite loopspaces

Nicholas J. Kuhn

arxiv:1403.7501 v3 · 2014-03-28 · 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{DQ22RYMYRPJQRZ3S2PNBOST37C}

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	2026-05-18T00:10:41.885744Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1c35a8e1988bd308e772d3da174a7bf89e0ff2f08014fb68e36fb37479e909ec

Aliases

arxiv: 1403.7501 · arxiv_version: 1403.7501v3 · doi: 10.48550/arxiv.1403.7501 · pith_short_12: DQ22RYMYRPJQ · pith_short_16: DQ22RYMYRPJQRZ3S · pith_short_8: DQ22RYMY

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/DQ22RYMYRPJQRZ3S2PNBOST37C \
  | 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: 1c35a8e1988bd308e772d3da174a7bf89e0ff2f08014fb68e36fb37479e909ec

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "31b2f21c1eeae20e7b96e549f0994b2b55120d361b984c79172415d4fbcd06a2",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AT",
    "submitted_at": "2014-03-28T19:22:13Z",
    "title_canon_sha256": "80726d8230ac934bfa5867208e680dc3d88fa178b83eb5f08418ebd0a83a0168"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1403.7501",
    "kind": "arxiv",
    "version": 3
  }
}