Pith Number

pith:U6NCXYZ2

pith:2019:U6NCXYZ2OHIQZTS7ESHM6U3R5P

not attested not anchored not stored refs pending

On Certain Morphisms between Flag Varieties

Mohammad Hadi Hedayatzadeh

arxiv:1908.05449 v2 · 2019-08-15 · 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{U6NCXYZ2OHIQZTS7ESHM6U3R5P}

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	2026-07-05T00:13:30.328368Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a79a2be33a71d10cce5f248ecf5371ebe54888f760aa9696cd5ea59e3d0c0ae9

Aliases

arxiv: 1908.05449 · arxiv_version: 1908.05449v2 · doi: 10.48550/arxiv.1908.05449 · pith_short_12: U6NCXYZ2OHIQ · pith_short_16: U6NCXYZ2OHIQZTS7 · pith_short_8: U6NCXYZ2

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/U6NCXYZ2OHIQZTS7ESHM6U3R5P \
  | 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: a79a2be33a71d10cce5f248ecf5371ebe54888f760aa9696cd5ea59e3d0c0ae9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2a8ef7015075f9714cc596415cb6ee82bdcc98547593b53212ea12381468bd82",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2019-08-15T07:58:29Z",
    "title_canon_sha256": "7f4149a0ced7283d28a8a36708321378bcf65f8663ef53672eab60f4d867b38d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1908.05449",
    "kind": "arxiv",
    "version": 2
  }
}