Pith Number

pith:DIG2URNT

pith:2015:DIG2URNTGFREGEZHTAZIPCOIIQ

not attested not anchored not stored refs pending

SymPix: A spherical grid for efficient sampling of rotationally invariant operators

Dag Sverre Seljebotn, Hans Kristian Eriksen

arxiv:1504.04653 v1 · 2015-04-17 · astro-ph.IM · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{DIG2URNTGFREGEZHTAZIPCOIIQ}

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	2026-05-18T00:48:47.620958Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1a0daa45b3316243132798328789c8442e51f166227a393dca4704c6e11cee11

Aliases

arxiv: 1504.04653 · arxiv_version: 1504.04653v1 · doi: 10.48550/arxiv.1504.04653 · pith_short_12: DIG2URNTGFRE · pith_short_16: DIG2URNTGFREGEZH · pith_short_8: DIG2URNT

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/DIG2URNTGFREGEZHTAZIPCOIIQ \
  | 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: 1a0daa45b3316243132798328789c8442e51f166227a393dca4704c6e11cee11

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "76ccbc4ca9bdb0153ea5536d9b2c3ee4e69dbe143e3683ba470f7f730e65633a",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2015-04-17T22:34:22Z",
    "title_canon_sha256": "e835e422984a9436741df15a4b32001255908c752c92c3d70760281fa1cdd451"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1504.04653",
    "kind": "arxiv",
    "version": 1
  }
}