Pith Number

pith:UITM5345

pith:2012:UITM53455LTMGDUDHR5NHHDDYP

not attested not anchored not stored refs pending

On Sandon-type metrics for contactomorphism groups

Daniel Rosen, Leonid Polterovich, Maia Fraser

arxiv:1207.3151 v2 · 2012-07-13 · 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{UITM53455LTMGDUDHR5NHHDDYP}

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	2026-05-18T01:01:09.172658Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a226ceef9deae6c30e833c7ad39c63c3fda4714e791e88b379da89b5c6ac53de

Aliases

arxiv: 1207.3151 · arxiv_version: 1207.3151v2 · doi: 10.48550/arxiv.1207.3151 · pith_short_12: UITM53455LTM · pith_short_16: UITM53455LTMGDUD · pith_short_8: UITM5345

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/UITM53455LTMGDUDHR5NHHDDYP \
  | 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: a226ceef9deae6c30e833c7ad39c63c3fda4714e791e88b379da89b5c6ac53de

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a6efc394a17ff68b0cc3019cb29457e9c16a918fb17eb080adcaff1cfb5a8cd4",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.SG",
    "submitted_at": "2012-07-13T05:53:21Z",
    "title_canon_sha256": "e73c547933f0a51034b395181728fc357632dd3ea9cd22f392a51883d6a54a4c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1207.3151",
    "kind": "arxiv",
    "version": 2
  }
}