Pith Number

pith:OEOGP7AS

pith:2009:OEOGP7ASMJU3PZR4G7QXTBQJS6

not attested not anchored not stored refs pending

On the determination of Moving Boundaries for Hyperbolic Equations

Gregory Eskin, James Ralston

arxiv:0902.4497 v5 · 2009-02-26 · math-ph · math.MP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{OEOGP7ASMJU3PZR4G7QXTBQJS6}

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	2026-05-18T01:36:39.313235Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

711c67fc126269b7e63c37e179860997a5be4b2e9ab6a4a57190d0acdb272dcf

Aliases

arxiv: 0902.4497 · arxiv_version: 0902.4497v5 · doi: 10.48550/arxiv.0902.4497 · pith_short_12: OEOGP7ASMJU3 · pith_short_16: OEOGP7ASMJU3PZR4 · pith_short_8: OEOGP7AS

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/OEOGP7ASMJU3PZR4G7QXTBQJS6 \
  | 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: 711c67fc126269b7e63c37e179860997a5be4b2e9ab6a4a57190d0acdb272dcf

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "34853d564c9332e6b1f3951180a09e0b6e33990658a05b9688855e59dc778d95",
    "cross_cats_sorted": [
      "math.MP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math-ph",
    "submitted_at": "2009-02-26T07:15:45Z",
    "title_canon_sha256": "3f511d6aadb82158a07e337f4ba459e5ab38deaf56c806b06a5d4f374e5702d4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0902.4497",
    "kind": "arxiv",
    "version": 5
  }
}