Pith Number

pith:Q2PDBTGJ

pith:2016:Q2PDBTGJNRFFFNEJNYGII3CFRB

not attested not anchored not stored refs pending

Optimal curvature estimates for homogeneous Ricci flows

Christoph B\"ohm, Miles Simon, Ramiro Lafuente

arxiv:1604.02625 v2 · 2016-04-10 · 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{Q2PDBTGJNRFFFNEJNYGII3CFRB}

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	2026-05-18T01:13:09.363544Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

869e30ccc96c4a52b4896e0c846c45886fda03e788174f6360a8f6a790b10c6b

Aliases

arxiv: 1604.02625 · arxiv_version: 1604.02625v2 · doi: 10.48550/arxiv.1604.02625 · pith_short_12: Q2PDBTGJNRFF · pith_short_16: Q2PDBTGJNRFFFNEJ · pith_short_8: Q2PDBTGJ

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/Q2PDBTGJNRFFFNEJNYGII3CFRB \
  | 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: 869e30ccc96c4a52b4896e0c846c45886fda03e788174f6360a8f6a790b10c6b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "47580951650b2a19837dc491b2e1f47d47f0542f0d5bd509afecab27688dcc48",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2016-04-10T02:00:05Z",
    "title_canon_sha256": "76a9f7f871686136ead6e462e2fc762b3c0b2e1f85fb902ae09eb2742207b4b6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1604.02625",
    "kind": "arxiv",
    "version": 2
  }
}