Pith Number

pith:EWJRPJTF

pith:2021:EWJRPJTFH2ZOQOYQLJQMUBRZG5

not attested not anchored not stored refs pending

On Endomorphism of Algebraic Varieties

Nilkantha Das

arxiv:2103.17130 v2 · 2021-03-31 · 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{EWJRPJTFH2ZOQOYQLJQMUBRZG5}

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	2026-07-05T02:28:22.875566Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

259317a6653eb2e83b105a60ca0639374881bb788e327918b3b3b5f2411737b5

Aliases

arxiv: 2103.17130 · arxiv_version: 2103.17130v2 · doi: 10.48550/arxiv.2103.17130 · pith_short_12: EWJRPJTFH2ZO · pith_short_16: EWJRPJTFH2ZOQOYQ · pith_short_8: EWJRPJTF

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/EWJRPJTFH2ZOQOYQLJQMUBRZG5 \
  | 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: 259317a6653eb2e83b105a60ca0639374881bb788e327918b3b3b5f2411737b5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9429363fc1798cd2be97acd19841bfb797af5138fbe1ec209b695e7f5cd69551",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2021-03-31T14:50:53Z",
    "title_canon_sha256": "6c12c74189c5e98226bbdc290759b9517353ce3d8d38d6102188f8512e7bb3ac"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2103.17130",
    "kind": "arxiv",
    "version": 2
  }
}