Pith Number

pith:QENRXQ3W

pith:2015:QENRXQ3WPDTIZRKQMRGLV2OPYG

not attested not anchored not stored refs pending

On the Seifert fibered space link group

Bo\v{s}tjan Gabrov\v{s}ek, Enrico Manfredi

arxiv:1503.07223 v1 · 2015-03-24 · 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{QENRXQ3WPDTIZRKQMRGLV2OPYG}

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	2026-05-18T00:48:43.322139Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

811b1bc37678e68cc550644cbae9cfc1b205feb3c5bd9715629b67ef17a80f4c

Aliases

arxiv: 1503.07223 · arxiv_version: 1503.07223v1 · doi: 10.48550/arxiv.1503.07223 · pith_short_12: QENRXQ3WPDTI · pith_short_16: QENRXQ3WPDTIZRKQ · pith_short_8: QENRXQ3W

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/QENRXQ3WPDTIZRKQMRGLV2OPYG \
  | 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: 811b1bc37678e68cc550644cbae9cfc1b205feb3c5bd9715629b67ef17a80f4c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "042f5c641e04a94918f408b1dc2c5b87184c0803b0ae3a55ca256016c406179f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GT",
    "submitted_at": "2015-03-24T22:47:33Z",
    "title_canon_sha256": "d93c544465887be8cd331279c0e45820b5d0abcddd75780f35c47bbec8c1002e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1503.07223",
    "kind": "arxiv",
    "version": 1
  }
}