Pith Number

pith:DBC7NWK5

pith:2017:DBC7NWK5U66P5ZQMQRGUQGUYOY

not attested not anchored not stored refs pending

Global existence for a coupled wave system related to the Strauss conjecture

David Spencer, Jason Metcalfe

arxiv:1701.05642 v1 · 2017-01-19 · 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{DBC7NWK5U66P5ZQMQRGUQGUYOY}

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	2026-05-18T00:52:28.927973Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1845f6d95da7bcfee60c844d481a987627b4767fc24ab6c2fc0080107f37f76c

Aliases

arxiv: 1701.05642 · arxiv_version: 1701.05642v1 · doi: 10.48550/arxiv.1701.05642 · pith_short_12: DBC7NWK5U66P · pith_short_16: DBC7NWK5U66P5ZQM · pith_short_8: DBC7NWK5

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/DBC7NWK5U66P5ZQMQRGUQGUYOY \
  | 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: 1845f6d95da7bcfee60c844d481a987627b4767fc24ab6c2fc0080107f37f76c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c96eff42ad1912e409e7d05991d7de0b344a05c392bd4353147c824289c33425",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2017-01-19T23:19:51Z",
    "title_canon_sha256": "947efc73a0dfbf5c9f08defa50e1e98b6c2a8200478fe25d0c280b6f7c07970e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1701.05642",
    "kind": "arxiv",
    "version": 1
  }
}