Pith Number

pith:XNLFXR75

pith:2017:XNLFXR75VNWQ2W5D2DU66MN3SQ

not attested not anchored not stored refs pending

Homology theory formulas for generalized Riemann-Hurwitz and generalized monoidal transformations

Alberto Verjovsky, James F. Glazebrook

arxiv:1708.07267 v1 · 2017-08-24 · math.AT · math.AG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{XNLFXR75VNWQ2W5D2DU66MN3SQ}

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	2026-05-18T00:36:46.737975Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bb565bc7fdab6d0d5ba3d0e9ef31bb9411ac52d670ccece7641916dfd595c029

Aliases

arxiv: 1708.07267 · arxiv_version: 1708.07267v1 · doi: 10.48550/arxiv.1708.07267 · pith_short_12: XNLFXR75VNWQ · pith_short_16: XNLFXR75VNWQ2W5D · pith_short_8: XNLFXR75

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/XNLFXR75VNWQ2W5D2DU66MN3SQ \
  | 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: bb565bc7fdab6d0d5ba3d0e9ef31bb9411ac52d670ccece7641916dfd595c029

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9912800bd1836aca97acc95e6c9cb492db8b3738b1f0b48a1bf9ed52545aa423",
    "cross_cats_sorted": [
      "math.AG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AT",
    "submitted_at": "2017-08-24T03:28:36Z",
    "title_canon_sha256": "9cd607e544bbcf746df208b70af2059c081387dd1f0763c8bbf900b3a56de9ac"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1708.07267",
    "kind": "arxiv",
    "version": 1
  }
}