Pith Number

pith:FHVOWFDJ

pith:2010:FHVOWFDJQJDYGFZV6R63FJF2PF

not attested not anchored not stored refs pending

The Well-posedness of the Null-Timelike Boundary Problem for Quasilinear Waves

H-O. Kreiss, J. Winicour

arxiv:1010.1201 v2 · 2010-10-06 · 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{FHVOWFDJQJDYGFZV6R63FJF2PF}

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	2026-05-18T04:20:03.784342Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

29eaeb14698247831735f47db2a4ba794ecd2b5910a3367969cec62e5612b9a8

Aliases

arxiv: 1010.1201 · arxiv_version: 1010.1201v2 · doi: 10.48550/arxiv.1010.1201 · pith_short_12: FHVOWFDJQJDY · pith_short_16: FHVOWFDJQJDYGFZV · pith_short_8: FHVOWFDJ

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/FHVOWFDJQJDYGFZV6R63FJF2PF \
  | 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: 29eaeb14698247831735f47db2a4ba794ecd2b5910a3367969cec62e5612b9a8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "513f87ce28972b92bc7c10433762ba18e463114e75054c10c7a57b9abd153259",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2010-10-06T16:42:17Z",
    "title_canon_sha256": "6e6a627332b995d0073f4433b2ed409bb9a229826e914567b94d3422a0221ff1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1010.1201",
    "kind": "arxiv",
    "version": 2
  }
}