Pith Number

pith:PFJEQRIA

pith:2015:PFJEQRIAMT7HG426DSWNWRDLWA

not attested not anchored not stored refs pending

A short proof of backward uniqueness for some geometric evolution equations

Brett Kotschwar

arxiv:1501.00946 v1 · 2015-01-05 · 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{PFJEQRIAMT7HG426DSWNWRDLWA}

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	2026-05-18T02:30:01.608328Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

795248450064fe73735e1cacdb446bb03a3c885786ef031ae3270bbe81fcdc84

Aliases

arxiv: 1501.00946 · arxiv_version: 1501.00946v1 · doi: 10.48550/arxiv.1501.00946 · pith_short_12: PFJEQRIAMT7H · pith_short_16: PFJEQRIAMT7HG426 · pith_short_8: PFJEQRIA

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/PFJEQRIAMT7HG426DSWNWRDLWA \
  | 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: 795248450064fe73735e1cacdb446bb03a3c885786ef031ae3270bbe81fcdc84

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "70b02520a6e4758855f719f30402a290eec0e923c647f11b221b14e8082a2df1",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2015-01-05T19:03:02Z",
    "title_canon_sha256": "bf1e10ea5f955f7c64fcfa17a01c03a4c01d0f7660a0d4b689b064e21bb649db"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1501.00946",
    "kind": "arxiv",
    "version": 1
  }
}