Pith Number

pith:SRML6QNE

pith:2017:SRML6QNEDW4AECAYMKUUMC4Q2Y

not attested not anchored not stored refs pending

Difference sets disjoint from a subgroup

Courtney Hoagland, Seth Poulsen, Stephen P. Humphries

arxiv:1703.06979 v1 · 2017-03-20 · math.GR · math.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{SRML6QNEDW4AECAYMKUUMC4Q2Y}

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	2026-05-18T00:48:11.699510Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9458bf41a41db802081862a9460b90d612d1522a63deee90c2f5f21cf7605e24

Aliases

arxiv: 1703.06979 · arxiv_version: 1703.06979v1 · doi: 10.48550/arxiv.1703.06979 · pith_short_12: SRML6QNEDW4A · pith_short_16: SRML6QNEDW4AECAY · pith_short_8: SRML6QNE

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/SRML6QNEDW4AECAYMKUUMC4Q2Y \
  | 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: 9458bf41a41db802081862a9460b90d612d1522a63deee90c2f5f21cf7605e24

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d1bcd74fad28440a69da9c19b3f8ec215412b96bf17c23ec0951e8369913df6e",
    "cross_cats_sorted": [
      "math.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GR",
    "submitted_at": "2017-03-20T21:46:24Z",
    "title_canon_sha256": "d9f1aac99fddc93680006538e312c51268b8cae724c0227eff88f15ba457a978"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1703.06979",
    "kind": "arxiv",
    "version": 1
  }
}