Pith Number

pith:YAKCMW6S

pith:2014:YAKCMW6SY5IS2254UTB5L223IB

not attested not anchored not stored refs pending

Extreme Rays of the Hankel Spectrahedra for Ternary Forms

Grigoriy Blekherman, Rainer Sinn

arxiv:1406.1873 v3 · 2014-06-07 · math.AG · math.AC · math.OC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{YAKCMW6SY5IS2254UTB5L223IB}

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	2026-05-18T01:41:58.090600Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c014265bd2c7512d6bbca4c3d5eb5b4056d7fb2f43b3d83fcf2aaa65fa3d6435

Aliases

arxiv: 1406.1873 · arxiv_version: 1406.1873v3 · doi: 10.48550/arxiv.1406.1873 · pith_short_12: YAKCMW6SY5IS · pith_short_16: YAKCMW6SY5IS2254 · pith_short_8: YAKCMW6S

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/YAKCMW6SY5IS2254UTB5L223IB \
  | 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: c014265bd2c7512d6bbca4c3d5eb5b4056d7fb2f43b3d83fcf2aaa65fa3d6435

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "38ead37a95582ac50568d835ce7ccb607b0e451d4ddabf0b997983e1b9c609b4",
    "cross_cats_sorted": [
      "math.AC",
      "math.OC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2014-06-07T08:21:54Z",
    "title_canon_sha256": "b0097c91281f3a0b0c2d3494e67e3748f8397161ab7e69a21b38b5dbba228630"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1406.1873",
    "kind": "arxiv",
    "version": 3
  }
}