Pith Number

pith:3FWKRL2D

pith:2017:3FWKRL2DIQC3AIWAYYRIDWFHVD

not attested not anchored not stored refs pending

An induced map between rationalized classifying spaces for fibrations

Toshihiro Yamaguchi

arxiv:1706.03450 v2 · 2017-06-12 · 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{3FWKRL2DIQC3AIWAYYRIDWFHVD}

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	2026-05-18T00:09:10.046654Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d96ca8af434405b022c0c62281d8a7a8e4b929187463c354fa0c8af799e40775

Aliases

arxiv: 1706.03450 · arxiv_version: 1706.03450v2 · doi: 10.48550/arxiv.1706.03450 · pith_short_12: 3FWKRL2DIQC3 · pith_short_16: 3FWKRL2DIQC3AIWA · pith_short_8: 3FWKRL2D

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/3FWKRL2DIQC3AIWAYYRIDWFHVD \
  | 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: d96ca8af434405b022c0c62281d8a7a8e4b929187463c354fa0c8af799e40775

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "42e74b530ccdf5c2e0419e90a28b67e67296215b469072bee3177c2034f6e8e3",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AT",
    "submitted_at": "2017-06-12T03:28:03Z",
    "title_canon_sha256": "437f65683b130f6cd130725c1fb38098673641a74ee82668b41699b3cd342669"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1706.03450",
    "kind": "arxiv",
    "version": 2
  }
}