Pith Number

pith:SIVMD36H

pith:2016:SIVMD36H6ZWVW37AP7YATHNBFN

not attested not anchored not stored refs pending

Flexibility for tangent and transverse immersions in Engel manifolds

Alvaro del Pino, Francisco Presas

arxiv:1609.09306 v1 · 2016-09-29 · math.SG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{SIVMD36H6ZWVW37AP7YATHNBFN}

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	2026-05-18T01:03:38.229051Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

922ac1efc7f66d5b6fe07ff0099da12b77bf95458be12f0fe25e9f2c653ed3aa

Aliases

arxiv: 1609.09306 · arxiv_version: 1609.09306v1 · doi: 10.48550/arxiv.1609.09306 · pith_short_12: SIVMD36H6ZWV · pith_short_16: SIVMD36H6ZWVW37A · pith_short_8: SIVMD36H

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/SIVMD36H6ZWVW37AP7YATHNBFN \
  | 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: 922ac1efc7f66d5b6fe07ff0099da12b77bf95458be12f0fe25e9f2c653ed3aa

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "272fd0bf7cc278a03f694fd2bdcdef26ef1b29542bf4d1bf730e85e52f612377",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.SG",
    "submitted_at": "2016-09-29T11:55:19Z",
    "title_canon_sha256": "585f81c496983f08493be6c66cdf8b3de1bc3c356017bfb40081fce5617a98a7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1609.09306",
    "kind": "arxiv",
    "version": 1
  }
}