Pith Number

pith:65VNC3NH

pith:2025:65VNC3NHDB2MQ4HPXJI4BPAPJU

not attested not anchored not stored refs pending

An algorithm to compute Selmer groups via resolutions by permutations modules

CANARI, Fabrice Etienne (UB, IMB)

arxiv:2504.13506 v1 · 2025-04-18 · cs.SC · math.GR · math.NT · math.RT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{65VNC3NHDB2MQ4HPXJI4BPAPJU}

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	2026-07-05T10:50:56.632375Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f76ad16da71874c870efba51c0bc0f4d3b12b6ecf976844c072f3cb587d9830f

Aliases

arxiv: 2504.13506 · arxiv_version: 2504.13506v1 · doi: 10.48550/arxiv.2504.13506 · pith_short_12: 65VNC3NHDB2M · pith_short_16: 65VNC3NHDB2MQ4HP · pith_short_8: 65VNC3NH

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/65VNC3NHDB2MQ4HPXJI4BPAPJU \
  | 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: f76ad16da71874c870efba51c0bc0f4d3b12b6ecf976844c072f3cb587d9830f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5c23dc603866bad69985bf4ed6ac974b8e38043a12294c90b3e62cb030711a4f",
    "cross_cats_sorted": [
      "math.GR",
      "math.NT",
      "math.RT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.SC",
    "submitted_at": "2025-04-18T06:57:38Z",
    "title_canon_sha256": "7e57432f38e301b668081ea939bf841bbc30c927290d65fae2dc4b7a84312ad4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2504.13506",
    "kind": "arxiv",
    "version": 1
  }
}