Pith Number

pith:BFQHMSPG

pith:2017:BFQHMSPG2RL33RAFE2MQ2EWBPH

not attested not anchored not stored refs pending

The set of alternating sign matrices which are determined by their X-ray is a member of the Catalan family

Martin Rubey

arxiv:1707.06802 v1 · 2017-07-21 · 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{BFQHMSPG2RL33RAFE2MQ2EWBPH}

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	2026-05-18T00:39:51.587969Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

09607649e6d457bdc40526990d12c179d5e9ec5fc47b10ac04691621d7fd2212

Aliases

arxiv: 1707.06802 · arxiv_version: 1707.06802v1 · doi: 10.48550/arxiv.1707.06802 · pith_short_12: BFQHMSPG2RL3 · pith_short_16: BFQHMSPG2RL33RAF · pith_short_8: BFQHMSPG

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/BFQHMSPG2RL33RAFE2MQ2EWBPH \
  | 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: 09607649e6d457bdc40526990d12c179d5e9ec5fc47b10ac04691621d7fd2212

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ff1e11ef156802fca24f8658ff43253557455622eea8bdbd8b1e45ddb04bacf9",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2017-07-21T08:51:38Z",
    "title_canon_sha256": "921334ad6a3234c76de629b0de0f352cb7ef8b3c0dc00d627946b25d2b182653"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1707.06802",
    "kind": "arxiv",
    "version": 1
  }
}