Pith Number

pith:RK557ZSZ

pith:2017:RK557ZSZI5V7VWIEYTTSR4UAUZ

not attested not anchored not stored refs pending

Finite element approximations for fractional evolution problems

Francisco M. Bersetche, Gabriel Acosta, Juan Pablo Borthagaray

arxiv:1705.09815 v2 · 2017-05-27 · math.NA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{RK557ZSZI5V7VWIEYTTSR4UAUZ}

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	2026-05-18T00:18:31.828478Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8abbdfe659476bfad904c4e728f280a65a84e3bbab47eab1e6e91e254e161d10

Aliases

arxiv: 1705.09815 · arxiv_version: 1705.09815v2 · doi: 10.48550/arxiv.1705.09815 · pith_short_12: RK557ZSZI5V7 · pith_short_16: RK557ZSZI5V7VWIE · pith_short_8: RK557ZSZ

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/RK557ZSZI5V7VWIEYTTSR4UAUZ \
  | 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: 8abbdfe659476bfad904c4e728f280a65a84e3bbab47eab1e6e91e254e161d10

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f62887237e25d276ecd8206ef7e0860bbb27b02ec0a716d5f9b37580b5840258",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2017-05-27T12:22:46Z",
    "title_canon_sha256": "652c5f76e35c05488dbda2697ac7202e76b43d44d14c31af41c903acb4828fa3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1705.09815",
    "kind": "arxiv",
    "version": 2
  }
}