Pith Number

pith:UVQL37N4

pith:2021:UVQL37N447UZW5DU26DAR43O6M

not attested not anchored not stored refs pending

Ricci de Turck flow on incomplete manifolds

Boris Vertman, Tobias Marxen

arxiv:2101.10314 v1 · 2021-01-25 · math.DG · math.AP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{UVQL37N447UZW5DU26DAR43O6M}

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	2026-07-05T02:09:27.664934Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a560bdfdbce7e99b7474d78608f36ef337ea575f529181e63bcb2ea4fc2bd159

Aliases

arxiv: 2101.10314 · arxiv_version: 2101.10314v1 · doi: 10.48550/arxiv.2101.10314 · pith_short_12: UVQL37N447UZ · pith_short_16: UVQL37N447UZW5DU · pith_short_8: UVQL37N4

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/UVQL37N447UZW5DU26DAR43O6M \
  | 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: a560bdfdbce7e99b7474d78608f36ef337ea575f529181e63bcb2ea4fc2bd159

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b497aab48c24f2bc4d293e96c5217e51096532700c789979f96f0322bbdab3e8",
    "cross_cats_sorted": [
      "math.AP"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-sa/4.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2021-01-25T18:55:10Z",
    "title_canon_sha256": "b8f98228e6656e835782fcd8617cf3c9b1422143fe50fe67a3dda5bef006aca9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2101.10314",
    "kind": "arxiv",
    "version": 1
  }
}