Pith Number

pith:EQGWQYAG

pith:2018:EQGWQYAGMJNNIYWMIMIC4G3HSA

not attested not anchored not stored refs pending

Reduced invariants from cuspidal maps

Cristina Manolache, Francesca Carocci, Luca Battistella

arxiv:1801.07739 v1 · 2018-01-23 · 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{EQGWQYAGMJNNIYWMIMIC4G3HSA}

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	2026-05-18T00:25:11.015727Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

240d686006625ad462cc43102e1b6790132082b31510c93576a08e050eb7d8e4

Aliases

arxiv: 1801.07739 · arxiv_version: 1801.07739v1 · doi: 10.48550/arxiv.1801.07739 · pith_short_12: EQGWQYAGMJNN · pith_short_16: EQGWQYAGMJNNIYWM · pith_short_8: EQGWQYAG

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/EQGWQYAGMJNNIYWMIMIC4G3HSA \
  | 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: 240d686006625ad462cc43102e1b6790132082b31510c93576a08e050eb7d8e4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0132c8200a720efeb0a2db43623569c64868e0e35e30905fc53aa0a793aaad87",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2018-01-23T19:27:17Z",
    "title_canon_sha256": "40c3b10a369c2a952793640b3b244d83b540a3f6a4f014cdc4abc581e6bf0082"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1801.07739",
    "kind": "arxiv",
    "version": 1
  }
}