Pith Number

pith:A72B7ZCE

pith:2012:A72B7ZCENDLDRPRY7AH5BLED4E

not attested not anchored not stored refs pending

Discrete Morse flow for Ricci flow and Porous Media equation

I.Witt, Li Ma

arxiv:1203.2225 v1 · 2012-03-10 · math.DG · math.AP

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Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

Receipt and verification

First computed	2026-05-18T04:00:26.062441Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

07f41fe44468d638be38f80fd0ac83e13f5a895a8f02f53eebd37aacb916ebd2

Aliases

arxiv: 1203.2225 · arxiv_version: 1203.2225v1 · doi: 10.48550/arxiv.1203.2225 · pith_short_12: A72B7ZCENDLD · pith_short_16: A72B7ZCENDLDRPRY · pith_short_8: A72B7ZCE

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/A72B7ZCENDLDRPRY7AH5BLED4E \
  | 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: 07f41fe44468d638be38f80fd0ac83e13f5a895a8f02f53eebd37aacb916ebd2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4532a70c67b23550ef526e982499a1fce4d12f34a2402a64c476922c64ee13a2",
    "cross_cats_sorted": [
      "math.AP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2012-03-10T03:36:52Z",
    "title_canon_sha256": "d348d760b460597b2a373f07c2555ac00745481eedf241fb07ef18eedcc20715"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1203.2225",
    "kind": "arxiv",
    "version": 1
  }
}