Pith Number

pith:UVSJCDEK

pith:2009:UVSJCDEK6WQ4UNPS33WETUCCBZ

not attested not anchored not stored refs pending

Building extended resolvent of heat operator via twisting transformations

A.K. Pogrebkov, B. Prinari, F. Pempinelli, M. Boiti

arxiv:0901.3857 v1 · 2009-01-24 · nlin.SI

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{UVSJCDEK6WQ4UNPS33WETUCCBZ}

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	2026-05-18T02:14:55.991199Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a564910c8af5a1ca35f2deec49d0420e6a3ea30d69d08a0cc5f0eb7815cba772

Aliases

arxiv: 0901.3857 · arxiv_version: 0901.3857v1 · doi: 10.48550/arxiv.0901.3857 · pith_short_12: UVSJCDEK6WQ4 · pith_short_16: UVSJCDEK6WQ4UNPS · pith_short_8: UVSJCDEK

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/UVSJCDEK6WQ4UNPS33WETUCCBZ \
  | 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: a564910c8af5a1ca35f2deec49d0420e6a3ea30d69d08a0cc5f0eb7815cba772

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6f0d4c17bc58ec874a45b379b2c222069569f388291ef66b6b6118b566f04fd6",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "nlin.SI",
    "submitted_at": "2009-01-24T21:05:23Z",
    "title_canon_sha256": "dcfa52e157de82aaf402da8b0bb2c660f1af2140f6f53f407fe8d4563f642044"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0901.3857",
    "kind": "arxiv",
    "version": 1
  }
}