Pith Number

pith:RQ4HL7VZ

pith:2016:RQ4HL7VZGP5VKFYNJPGXAPWGM5

not attested not anchored not stored refs pending

On the large-scale geometry of diffeomorphism groups of $1$-manifolds

Michael P. Cohen

arxiv:1606.03994 v2 · 2016-06-13 · math.GR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{RQ4HL7VZGP5VKFYNJPGXAPWGM5}

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	2026-05-18T00:49:37.921759Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8c3875feb933fb55170d4bcd703ec6675288b741de76b573d2aa644197dc743e

Aliases

arxiv: 1606.03994 · arxiv_version: 1606.03994v2 · doi: 10.48550/arxiv.1606.03994 · pith_short_12: RQ4HL7VZGP5V · pith_short_16: RQ4HL7VZGP5VKFYN · pith_short_8: RQ4HL7VZ

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/RQ4HL7VZGP5VKFYNJPGXAPWGM5 \
  | 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: 8c3875feb933fb55170d4bcd703ec6675288b741de76b573d2aa644197dc743e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f27226914d78ce125763253c8f7a34f7b7991c308ff71b4207e04f862e3bc19d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GR",
    "submitted_at": "2016-06-13T15:33:17Z",
    "title_canon_sha256": "aa247f62c4919e0fa8e7e77116030c6ce456ac68b22a7c35e5a90afaddeb9836"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1606.03994",
    "kind": "arxiv",
    "version": 2
  }
}