Pith Number

pith:GHHINAL2

pith:2016:GHHINAL2QWB4NRKEZPXR3TBODI

not attested not anchored not stored refs pending

On the homotopy fibre of the inclusion map F\_n(X) $\rightarrow$ $\prod$\_1^n X for some orbit spaces X

Daciberg Lima Gon\c{c}alves (IME), John Guaschi (UNICAEN, LMNO), Marek Golasinski, NU

arxiv:1608.07406 v1 · 2016-08-26 · math.GT · 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{GHHINAL2QWB4NRKEZPXR3TBODI}

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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	2026-05-18T01:07:53.140673Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

31ce86817a8583c6c544cbef1dcc2e1a3c21c73ead400ff97235542d852b6efe

Aliases

arxiv: 1608.07406 · arxiv_version: 1608.07406v1 · doi: 10.48550/arxiv.1608.07406 · pith_short_12: GHHINAL2QWB4 · pith_short_16: GHHINAL2QWB4NRKE · pith_short_8: GHHINAL2

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/GHHINAL2QWB4NRKEZPXR3TBODI \
  | 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: 31ce86817a8583c6c544cbef1dcc2e1a3c21c73ead400ff97235542d852b6efe

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4e1f5f1a6f92c9fecf9371602cfbc21f35c98a81b4208a19fc4ad099d44932da",
    "cross_cats_sorted": [
      "math.AT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GT",
    "submitted_at": "2016-08-26T09:38:06Z",
    "title_canon_sha256": "56a2701c8614efd0b60b3f742b03ba950424f766edfec4619ef20bc01f7b2f5d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1608.07406",
    "kind": "arxiv",
    "version": 1
  }
}