Pith Number

pith:PW7MRSKP

pith:2019:PW7MRSKPFUMJXKFVAAP2R6Z4IT

not attested not anchored not stored refs pending

A Calabi's Type Correspondence

A. L. Mart\'inez Trivi\~no, Antonio Mart\'inez

arxiv:1901.11451 v1 · 2019-01-31 · math.DG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{PW7MRSKPFUMJXKFVAAP2R6Z4IT}

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	2026-05-17T23:55:01.845634Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7dbec8c94f2d189ba8b5001fa8fb3c44f86a9c05ec9cb61b7e000c7fae338b40

Aliases

arxiv: 1901.11451 · arxiv_version: 1901.11451v1 · doi: 10.48550/arxiv.1901.11451 · pith_short_12: PW7MRSKPFUMJ · pith_short_16: PW7MRSKPFUMJXKFV · pith_short_8: PW7MRSKP

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/PW7MRSKPFUMJXKFVAAP2R6Z4IT \
  | 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: 7dbec8c94f2d189ba8b5001fa8fb3c44f86a9c05ec9cb61b7e000c7fae338b40

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "edfac782249e4721f71f5e5a1ea4c1bd6e049a6e3951f4e96f15e188530ceb08",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2019-01-31T16:21:08Z",
    "title_canon_sha256": "7e7db32959ca986025e60b277e3aa9dea6a87e8c8fd2f3d06b5d8906db6a8246"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1901.11451",
    "kind": "arxiv",
    "version": 1
  }
}