Pith Number

pith:OFWLSGXV

pith:2019:OFWLSGXVYDPTXNBEPD25CHC6S2

not attested not anchored not stored refs pending

When can a link be obtained from another using crossing exchanges and smoothings?

Carolina Medina, Gelasio Salazar

arxiv:1903.04532 v2 · 2019-03-11 · math.GT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{OFWLSGXVYDPTXNBEPD25CHC6S2}

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	2026-05-17T23:51:25.522188Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

716cb91af5c0df3bb42478f5d11c5e9688f86ce8e75362df4de015e04d2113e2

Aliases

arxiv: 1903.04532 · arxiv_version: 1903.04532v2 · doi: 10.48550/arxiv.1903.04532 · pith_short_12: OFWLSGXVYDPT · pith_short_16: OFWLSGXVYDPTXNBE · pith_short_8: OFWLSGXV

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/OFWLSGXVYDPTXNBEPD25CHC6S2 \
  | 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: 716cb91af5c0df3bb42478f5d11c5e9688f86ce8e75362df4de015e04d2113e2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d7e47ee592f61009f02a1a56c99a86acb26ec91ca12c68475fd088e1f3214b03",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GT",
    "submitted_at": "2019-03-11T18:37:43Z",
    "title_canon_sha256": "9ee39c5caeb44e5b687ee556662290a896ef036829f9ed923b35e46fd11f85ed"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1903.04532",
    "kind": "arxiv",
    "version": 2
  }
}