Pith Number

pith:GUF42EFP

pith:2015:GUF42EFPODWOTIBSM3MYQOUS4X

not attested not anchored not stored refs pending

Weak versus $\mathcal{D}$-solutions to linear hyperbolic first order systems with constant coefficients

Nikos Katzourakis (Reading, UK)

arxiv:1507.03042 v5 · 2015-07-10 · 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{GUF42EFPODWOTIBSM3MYQOUS4X}

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	2026-05-18T00:25:12.086854Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

350bcd10af70ece9a03266d9883a92e5d271ce0b68e6cdc5551f50971277cbe1

Aliases

arxiv: 1507.03042 · arxiv_version: 1507.03042v5 · doi: 10.48550/arxiv.1507.03042 · pith_short_12: GUF42EFPODWO · pith_short_16: GUF42EFPODWOTIBS · pith_short_8: GUF42EFP

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/GUF42EFPODWOTIBSM3MYQOUS4X \
  | 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: 350bcd10af70ece9a03266d9883a92e5d271ce0b68e6cdc5551f50971277cbe1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c5592bf18ce530970a90bcb8b6b94ed43c183bb41326b2b1ee65b428a3b7c807",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2015-07-10T22:43:59Z",
    "title_canon_sha256": "3a31b749e39ec8d7d511983d90c7a143b08220b400f83ba3b01b9ecf3ac4df69"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1507.03042",
    "kind": "arxiv",
    "version": 5
  }
}