Pith Number

pith:MTDVTGMU

pith:2011:MTDVTGMUGKT3ZDOGETEZECTCCJ

not attested not anchored not stored refs pending

The geometry of canal surfaces and the length of curves in de Sitter space

Gil Solanes, R\'emi Langevin

arxiv:1108.2363 v1 · 2011-08-11 · math.DG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{MTDVTGMUGKT3ZDOGETEZECTCCJ}

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	2026-05-18T04:15:37.927143Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

64c759999432a7bc8dc624c9920a62127d948876ff35b2c4519d1b5d89eaeb8a

Aliases

arxiv: 1108.2363 · arxiv_version: 1108.2363v1 · doi: 10.48550/arxiv.1108.2363 · pith_short_12: MTDVTGMUGKT3 · pith_short_16: MTDVTGMUGKT3ZDOG · pith_short_8: MTDVTGMU

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/MTDVTGMUGKT3ZDOGETEZECTCCJ \
  | 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: 64c759999432a7bc8dc624c9920a62127d948876ff35b2c4519d1b5d89eaeb8a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "42e99675ff6b57dd2c76a102cb674374f71dc3d9728b18f17ae4d6e08a798012",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2011-08-11T10:10:33Z",
    "title_canon_sha256": "090e119540f194793211fbe86c66157bc403169ac196d04c19f80939c7d8661f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1108.2363",
    "kind": "arxiv",
    "version": 1
  }
}