Pith Number

pith:PGIQDQST

pith:2018:PGIQDQSTVOYX3PTSAKET7H7MBU

not attested not anchored not stored refs pending

Analysis of Type I Singularities in the Harmonic Ricci Flow

Gianmichele Di Matteo

arxiv:1811.09563 v1 · 2018-11-23 · 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{PGIQDQSTVOYX3PTSAKET7H7MBU}

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	2026-05-18T00:00:03.044631Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

799101c253abb17dbe7202893f9fec0d35eed88253e050ebcba4ae006ac528fa

Aliases

arxiv: 1811.09563 · arxiv_version: 1811.09563v1 · doi: 10.48550/arxiv.1811.09563 · pith_short_12: PGIQDQSTVOYX · pith_short_16: PGIQDQSTVOYX3PTS · pith_short_8: PGIQDQST

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/PGIQDQSTVOYX3PTSAKET7H7MBU \
  | 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: 799101c253abb17dbe7202893f9fec0d35eed88253e050ebcba4ae006ac528fa

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fef0b8ff14d8fc67228d13614b1c08ca429979d3b96108cb3dcbabe3d27875f0",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2018-11-23T17:07:20Z",
    "title_canon_sha256": "727904154936dacc64438a5c4914b405876b45966fe793370207c7653bbf93eb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1811.09563",
    "kind": "arxiv",
    "version": 1
  }
}