Pith Number

pith:Q5N7KGFE

pith:2022:Q5N7KGFEO32NPR3ZHJGASSETUH

not attested not anchored not stored refs pending

On arc fibers of morphisms of schemes

Christopher Chiu, Roi Docampo, Tommaso de Fernex

arxiv:2206.08060 v2 · 2022-06-16 · 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{Q5N7KGFEO32NPR3ZHJGASSETUH}

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	2026-05-26T01:02:24.103174Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

875bf518a476f4d7c7793a4c094893a1fbf3a400f2cfc8718991a1330f54129d

Aliases

arxiv: 2206.08060 · arxiv_version: 2206.08060v2 · doi: 10.48550/arxiv.2206.08060 · pith_short_12: Q5N7KGFEO32N · pith_short_16: Q5N7KGFEO32NPR3Z · pith_short_8: Q5N7KGFE

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/Q5N7KGFEO32NPR3ZHJGASSETUH \
  | 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: 875bf518a476f4d7c7793a4c094893a1fbf3a400f2cfc8718991a1330f54129d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ad5eec3f3e6a2f5b125044499721fe60c9eb3f6b21155da649306427d7673ffd",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2022-06-16T10:23:58Z",
    "title_canon_sha256": "6f0413ec25fd260696494fa26afdbf1f58e38c75c357a25986ef0963ee2d7ea5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2206.08060",
    "kind": "arxiv",
    "version": 2
  }
}