Pith Number

pith:EFSZSW2I

pith:2008:EFSZSW2I2RT2ORAGOXL7SDXFOH

not attested not anchored not stored refs pending

On the Geometry of the Second Fundamental Form of Translation Surfaces in E3

Ana Irina Nistor, Marian Ioan Munteanu

arxiv:0812.3166 v1 · 2008-12-16 · 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{EFSZSW2I2RT2ORAGOXL7SDXFOH}

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	2026-05-18T04:04:07.149758Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2165995b48d467a7440675d7f90ee571c14630a51233fc420d7ff76d81d263d4

Aliases

arxiv: 0812.3166 · arxiv_version: 0812.3166v1 · doi: 10.48550/arxiv.0812.3166 · pith_short_12: EFSZSW2I2RT2 · pith_short_16: EFSZSW2I2RT2ORAG · pith_short_8: EFSZSW2I

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/EFSZSW2I2RT2ORAGOXL7SDXFOH \
  | 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: 2165995b48d467a7440675d7f90ee571c14630a51233fc420d7ff76d81d263d4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7e94e577d5e043d3f415449dcebdbd871b281b5a21321aebe3b3f343f9082f3c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2008-12-16T22:18:55Z",
    "title_canon_sha256": "1459a535f442d7eb4d9306164f60f1215aa310af60a8e08135c81970a3cbf2a9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0812.3166",
    "kind": "arxiv",
    "version": 1
  }
}