Pith Number

pith:42FZJV3P

pith:2018:42FZJV3PBCOGLM35Y6VRCI3XYU

not attested not anchored not stored refs pending

Filtered finiteness of the image of the unstable Hurewicz homomorphism with applications to bordism of immersions

Hadi Zare

arxiv:1801.00735 v2 · 2018-01-02 · 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{42FZJV3PBCOGLM35Y6VRCI3XYU}

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	2026-05-18T00:26:48.806768Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e68b94d76f089c65b37dc7ab112377c510bb6465c70ee6652b9166d739e32dfb

Aliases

arxiv: 1801.00735 · arxiv_version: 1801.00735v2 · doi: 10.48550/arxiv.1801.00735 · pith_short_12: 42FZJV3PBCOG · pith_short_16: 42FZJV3PBCOGLM35 · pith_short_8: 42FZJV3P

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/42FZJV3PBCOGLM35Y6VRCI3XYU \
  | 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: e68b94d76f089c65b37dc7ab112377c510bb6465c70ee6652b9166d739e32dfb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f8067c7a8b5f4748248498c499e19f437d2d93a79e851915bf858e766bcceff5",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AT",
    "submitted_at": "2018-01-02T17:23:24Z",
    "title_canon_sha256": "69bd91977ef505fb50d1e8c1b17cac225a38de96d8669324f036217a4b09707c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1801.00735",
    "kind": "arxiv",
    "version": 2
  }
}