Pith Number

pith:BPKHHTEG

pith:2015:BPKHHTEGQWIUBF6YMBSGGK4IZZ

not attested not anchored not stored refs pending

Matrix Fej\'er-Riesz theorem with gaps

Alja\v{z} Zalar

arxiv:1503.06034 v2 · 2015-03-20 · math.AG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{BPKHHTEGQWIUBF6YMBSGGK4IZZ}

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	2026-05-18T01:13:00.410476Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0bd473cc8685914097d86064632b88ce51eaa05ef21cfafcedf0a67ce6b74ca8

Aliases

arxiv: 1503.06034 · arxiv_version: 1503.06034v2 · doi: 10.48550/arxiv.1503.06034 · pith_short_12: BPKHHTEGQWIU · pith_short_16: BPKHHTEGQWIUBF6Y · pith_short_8: BPKHHTEG

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/BPKHHTEGQWIUBF6YMBSGGK4IZZ \
  | 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: 0bd473cc8685914097d86064632b88ce51eaa05ef21cfafcedf0a67ce6b74ca8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7a9b5748caa319825e3eb066fa6a3aec60ea5ecb3400da556734ad724799bd4d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2015-03-20T10:17:45Z",
    "title_canon_sha256": "c342979c15632e715e6b3064213ea3ceb6e6544da8c129ca580b4cf95bec0a00"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1503.06034",
    "kind": "arxiv",
    "version": 2
  }
}