Pith Number

pith:TDOQFL7Y

pith:2017:TDOQFL7YECBF7HP7LOGRKWAOGH

not attested not anchored not stored refs pending

Intersection problem for Droms RAAGs

Alexander Zakharov, Enric Ventura, Jordi Delgado

arxiv:1709.01155 v3 · 2017-09-04 · 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{TDOQFL7YECBF7HP7LOGRKWAOGH}

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	2026-05-18T00:11:18.696870Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

98dd02aff820825f9dff5b8d15580e31c68161c657a0c0e09de79e5b8125ef46

Aliases

arxiv: 1709.01155 · arxiv_version: 1709.01155v3 · doi: 10.48550/arxiv.1709.01155 · pith_short_12: TDOQFL7YECBF · pith_short_16: TDOQFL7YECBF7HP7 · pith_short_8: TDOQFL7Y

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/TDOQFL7YECBF7HP7LOGRKWAOGH \
  | 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: 98dd02aff820825f9dff5b8d15580e31c68161c657a0c0e09de79e5b8125ef46

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9dd4699f9c995ed6abf61d91a9d22408109aec89c2522782dd252e7f0cdf5011",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GR",
    "submitted_at": "2017-09-04T21:09:44Z",
    "title_canon_sha256": "0afcb009eba0cfd907eaffe2ce9579d557eaf1384f2102c1444f1d3fcbf6e372"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1709.01155",
    "kind": "arxiv",
    "version": 3
  }
}