Pith Number

pith:BQISRVG3

pith:2016:BQISRVG3RZLKG5CMNTSWL5ZGNL

not attested not anchored not stored refs pending

Unique continuation through transversal characteristic hypersurfaces

Nicolas Lerner

arxiv:1601.07814 v2 · 2016-01-28 · 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{BQISRVG3RZLKG5CMNTSWL5ZGNL}

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	2026-05-18T00:47:29.383610Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0c1128d4db8e56a3744c6ce565f7266ada1263b592d5aa2f11ac14667fae6be4

Aliases

arxiv: 1601.07814 · arxiv_version: 1601.07814v2 · doi: 10.48550/arxiv.1601.07814 · pith_short_12: BQISRVG3RZLK · pith_short_16: BQISRVG3RZLKG5CM · pith_short_8: BQISRVG3

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/BQISRVG3RZLKG5CMNTSWL5ZGNL \
  | 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: 0c1128d4db8e56a3744c6ce565f7266ada1263b592d5aa2f11ac14667fae6be4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "05d5eea2a163f9750166f043c12082ff57b4bbb3406ab2c614a9eb4c1a2d1973",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2016-01-28T16:19:09Z",
    "title_canon_sha256": "a62942000e778bd7b3379c4f3d2d29e3dc844dae20309c5348014dd255cc5b0f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1601.07814",
    "kind": "arxiv",
    "version": 2
  }
}