Pith Number

pith:3PLSJ7EZ

pith:2010:3PLSJ7EZ4NSWOXL56WJAV6XCGS

not attested not anchored not stored refs pending

Initial-boundary value problems for second order systems of partial differential equations

Heinz-Otto Kreiss, N. Anders Petersson, Omar E. Ortiz

arxiv:1012.1065 v1 · 2010-12-06 · math.AP · gr-qc

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{3PLSJ7EZ4NSWOXL56WJAV6XCGS}

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	2026-05-18T04:34:01.197688Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

dbd724fc99e365675d7df5920afae234b33388ca74d79ec58c138357a3c87aa8

Aliases

arxiv: 1012.1065 · arxiv_version: 1012.1065v1 · doi: 10.48550/arxiv.1012.1065 · pith_short_12: 3PLSJ7EZ4NSW · pith_short_16: 3PLSJ7EZ4NSWOXL5 · pith_short_8: 3PLSJ7EZ

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/3PLSJ7EZ4NSWOXL56WJAV6XCGS \
  | 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: dbd724fc99e365675d7df5920afae234b33388ca74d79ec58c138357a3c87aa8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d96243524bcf85c4516839c060caaa53dc596e675867db305164b94ca4561635",
    "cross_cats_sorted": [
      "gr-qc"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2010-12-06T02:22:30Z",
    "title_canon_sha256": "8c3c3b6bb55ee3126b3611da679ec6508457327f732750d1c0ca65053f379dec"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1012.1065",
    "kind": "arxiv",
    "version": 1
  }
}