Pith Number

pith:SK5SXL4V

pith:2014:SK5SXL4V3WCTEEWIFVLEJH2TSL

not attested not anchored not stored refs pending

Skew flat fibrations

Michael Harrison

arxiv:1412.8448 v2 · 2014-12-29 · math.AT · math.DG

Open paper page JSON What is a Pith Number?

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

Receipt and verification

First computed	2026-05-18T01:32:08.270808Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

92bb2baf95dd853212c82d56449f5392db40329026e6b459ab0cf56c86c0101c

Aliases

arxiv: 1412.8448 · arxiv_version: 1412.8448v2 · doi: 10.48550/arxiv.1412.8448 · pith_short_12: SK5SXL4V3WCT · pith_short_16: SK5SXL4V3WCTEEWI · pith_short_8: SK5SXL4V

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/SK5SXL4V3WCTEEWIFVLEJH2TSL \
  | 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: 92bb2baf95dd853212c82d56449f5392db40329026e6b459ab0cf56c86c0101c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4283ac79f03815865aaf5a7e177f7272b37a4293edd5fdf7a8e6be12332732ed",
    "cross_cats_sorted": [
      "math.DG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AT",
    "submitted_at": "2014-12-29T20:27:40Z",
    "title_canon_sha256": "de4f28e75dd23fcbc644974103d2e46959d3692993cd71eb1284dc28b54ce688"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1412.8448",
    "kind": "arxiv",
    "version": 2
  }
}