Pith Number

pith:BLQURTC4

pith:2009:BLQURTC4TK5NYRT2RKYTRLJRYC

not attested not anchored not stored refs pending

Finite-dimensional global and exponential attractors for the reaction-diffusion problem with an obstacle potential

Antonio Segatti, Sergey Zelik

arxiv:0902.2645 v1 · 2009-02-16 · 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{BLQURTC4TK5NYRT2RKYTRLJRYC}

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	2026-05-18T02:14:47.693600Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0ae148cc5c9abadc467a8ab138ad31c0975a75dc2c4fcadca0ede457b37125fb

Aliases

arxiv: 0902.2645 · arxiv_version: 0902.2645v1 · doi: 10.48550/arxiv.0902.2645 · pith_short_12: BLQURTC4TK5N · pith_short_16: BLQURTC4TK5NYRT2 · pith_short_8: BLQURTC4

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/BLQURTC4TK5NYRT2RKYTRLJRYC \
  | 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: 0ae148cc5c9abadc467a8ab138ad31c0975a75dc2c4fcadca0ede457b37125fb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b8692ecbcfa6b1b991147b6c3d6154e731e6c106c20477390cda4685ae133b09",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2009-02-16T09:52:55Z",
    "title_canon_sha256": "add0c509f75444f67f9551f3f3898aca41705006c45652769a6f06040d1e574c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0902.2645",
    "kind": "arxiv",
    "version": 1
  }
}