Pith Number

pith:DA4T5YIS

pith:2014:DA4T5YIS7ED3DM24NQDVUDN6ZM

not attested not anchored not stored refs pending

On 4-Dimensional J-Invariant Shrinking Ricci Solitons

Frederick Tsz-Ho Fong

arxiv:1401.4748 v1 · 2014-01-19 · 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{DA4T5YIS7ED3DM24NQDVUDN6ZM}

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	2026-05-18T03:01:44.728554Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

18393ee112f907b1b35c6c075a0dbecb1e0bf0e2de7d3e46abcc0217699525cf

Aliases

arxiv: 1401.4748 · arxiv_version: 1401.4748v1 · doi: 10.48550/arxiv.1401.4748 · pith_short_12: DA4T5YIS7ED3 · pith_short_16: DA4T5YIS7ED3DM24 · pith_short_8: DA4T5YIS

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/DA4T5YIS7ED3DM24NQDVUDN6ZM \
  | 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: 18393ee112f907b1b35c6c075a0dbecb1e0bf0e2de7d3e46abcc0217699525cf

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7e466d2c20a91ee19c6f05e491ede7d81db71926b7327765683e7f5f018c5b3f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2014-01-19T22:27:35Z",
    "title_canon_sha256": "46e171bfcd56651aa901c1f6f77effcd3f5634d5178ede73c9d77b19dcbdfb22"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1401.4748",
    "kind": "arxiv",
    "version": 1
  }
}