Pith Number

pith:G2GHUL3N

pith:2015:G2GHUL3NN6US27XJYPX37NUF6C

not attested not anchored not stored refs pending

An online parameter identification method for time dependent partial differential equations

Barbara Kaltenbacher, Romana Boiger

arxiv:1506.00658 v1 · 2015-06-01 · 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{G2GHUL3NN6US27XJYPX37NUF6C}

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	2026-05-18T01:16:50.408429Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

368c7a2f6d6fa92d7ee9c3efbfb685f08408bf014171d536c949d9ac05e4977f

Aliases

arxiv: 1506.00658 · arxiv_version: 1506.00658v1 · doi: 10.48550/arxiv.1506.00658 · pith_short_12: G2GHUL3NN6US · pith_short_16: G2GHUL3NN6US27XJ · pith_short_8: G2GHUL3N

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/G2GHUL3NN6US27XJYPX37NUF6C \
  | 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: 368c7a2f6d6fa92d7ee9c3efbfb685f08408bf014171d536c949d9ac05e4977f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "34885bd85b8c5e5a071ca7952293ff5c824c3a26d7a677dfd698da286c4ed772",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2015-06-01T20:13:28Z",
    "title_canon_sha256": "7de0647eae0d768d53bbf165226ebd42cdb374be62c39946a3d51e6b0d043541"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1506.00658",
    "kind": "arxiv",
    "version": 1
  }
}