Pith Number

pith:VZH54RJ3

pith:2025:VZH54RJ3AZNWYIF55NVORX3TKO

not attested not anchored not stored refs pending

Remarks on the intersection of two quadrics

Nigel Hitchin

arxiv:2506.23671 v1 · 2025-06-30 · 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{VZH54RJ3AZNWYIF55NVORX3TKO}

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	2026-07-05T11:29:26.074388Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ae4fde453b065b6c20bdeb6ae8df73539707517904eab92f2e001b6d2bd1b1ad

Aliases

arxiv: 2506.23671 · arxiv_version: 2506.23671v1 · doi: 10.48550/arxiv.2506.23671 · pith_short_12: VZH54RJ3AZNW · pith_short_16: VZH54RJ3AZNWYIF5 · pith_short_8: VZH54RJ3

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/VZH54RJ3AZNWYIF55NVORX3TKO \
  | 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: ae4fde453b065b6c20bdeb6ae8df73539707517904eab92f2e001b6d2bd1b1ad

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "da37fea48d0ce844e020c8bb8ff14a52347e0904e466a09b19062d38c370abee",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2025-06-30T09:48:48Z",
    "title_canon_sha256": "c53653b32e422576679b3b71832504d8af2f6f53dd0718a8825af5d5538ebf1f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2506.23671",
    "kind": "arxiv",
    "version": 1
  }
}