Pith Number

pith:MV7TC2QZ

pith:2018:MV7TC2QZG2B7S576T7UHQIAC3D

not attested not anchored not stored refs pending

The tangent space to the space of 0-cycles

Vladimir Guletskii

arxiv:1803.02907 v1 · 2018-03-07 · 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{MV7TC2QZG2B7S576T7UHQIAC3D}

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	2026-05-18T00:21:45.032291Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

657f316a193683f977fe9fe8782002d8ec95da1ca2dee2a7d312468a50e745b9

Aliases

arxiv: 1803.02907 · arxiv_version: 1803.02907v1 · doi: 10.48550/arxiv.1803.02907 · pith_short_12: MV7TC2QZG2B7 · pith_short_16: MV7TC2QZG2B7S576 · pith_short_8: MV7TC2QZ

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/MV7TC2QZG2B7S576T7UHQIAC3D \
  | 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: 657f316a193683f977fe9fe8782002d8ec95da1ca2dee2a7d312468a50e745b9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "59fc30f61ee944a9266056eead17ccac6ded10e958053993c33e85d67fc36064",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2018-03-07T22:55:56Z",
    "title_canon_sha256": "642bef7b202157a8a893298e920eb172192cd9ab43c782ebc7da06c5188ee2ab"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1803.02907",
    "kind": "arxiv",
    "version": 1
  }
}