Pith Number

pith:6OQNVJCY

pith:2008:6OQNVJCY2MKJ5FWDK4ZEGRISVZ

not attested not anchored not stored refs pending

Sums of residues on algebraic surfaces and application to coding theory

Alain Couvreur

arxiv:0810.4112 v1 · 2008-10-22 · math.AG · cs.IT · math.IT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{6OQNVJCY2MKJ5FWDK4ZEGRISVZ}

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	2026-05-18T04:42:02.063050Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f3a0daa458d3149e96c35732434512ae68f91ccb62b1ef939733731c1a8ca7e4

Aliases

arxiv: 0810.4112 · arxiv_version: 0810.4112v1 · doi: 10.48550/arxiv.0810.4112 · pith_short_12: 6OQNVJCY2MKJ · pith_short_16: 6OQNVJCY2MKJ5FWD · pith_short_8: 6OQNVJCY

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/6OQNVJCY2MKJ5FWDK4ZEGRISVZ \
  | 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: f3a0daa458d3149e96c35732434512ae68f91ccb62b1ef939733731c1a8ca7e4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "106daf728db02c147869a7e109c382d3ab904f83a6cad56e29f976ad4d6ee272",
    "cross_cats_sorted": [
      "cs.IT",
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2008-10-22T18:10:26Z",
    "title_canon_sha256": "b13b833b231b9bafc03fdac5217053540dfcd71a15ecf9eb23b27f42816edd5d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0810.4112",
    "kind": "arxiv",
    "version": 1
  }
}