Pith Number

pith:NMAFHXGU

pith:2008:NMAFHXGUKMUFA2EQ2SDCR3SDHY

not attested not anchored not stored refs pending

Super-sequences in the arc component of a compact connected group

Dikran Dikranjan, Dmitri Shakhmatov

arxiv:0812.2888 v1 · 2008-12-15 · math.GN · math.GR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{NMAFHXGUKMUFA2EQ2SDCR3SDHY}

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	2026-05-18T03:56:24.643203Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6b0053dcd45328506890d48628ee433e3c7ef08316f6922dc19770a77611faef

Aliases

arxiv: 0812.2888 · arxiv_version: 0812.2888v1 · doi: 10.48550/arxiv.0812.2888 · pith_short_12: NMAFHXGUKMUF · pith_short_16: NMAFHXGUKMUFA2EQ · pith_short_8: NMAFHXGU

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/NMAFHXGUKMUFA2EQ2SDCR3SDHY \
  | 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: 6b0053dcd45328506890d48628ee433e3c7ef08316f6922dc19770a77611faef

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "954a4e1b15c880381d3fe2fa576601753b67a02e0724f991e5ed8f15da1b485e",
    "cross_cats_sorted": [
      "math.GR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GN",
    "submitted_at": "2008-12-15T19:30:11Z",
    "title_canon_sha256": "37d76606960106f7e9396527a7cd9ad7f5e0c9d00581aa54a833ac2ca2dbee2a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0812.2888",
    "kind": "arxiv",
    "version": 1
  }
}