Pith Number

pith:7GWKHZZL

pith:2015:7GWKHZZLVYQGNGPCTBGJU4FDBI

not attested not anchored not stored refs pending

Efficient data structures for masks on 2D grids

Eric Hivon, Martin Reinecke

arxiv:1505.04632 v2 · 2015-05-18 · astro-ph.IM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7GWKHZZLVYQGNGPCTBGJU4FDBI}

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	2026-05-18T01:35:09.915358Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f9aca3e72bae206699e2984c9a70a30a355ca174bb93105b3219702cab2cda5c

Aliases

arxiv: 1505.04632 · arxiv_version: 1505.04632v2 · doi: 10.48550/arxiv.1505.04632 · pith_short_12: 7GWKHZZLVYQG · pith_short_16: 7GWKHZZLVYQGNGPC · pith_short_8: 7GWKHZZL

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/7GWKHZZLVYQGNGPCTBGJU4FDBI \
  | 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: f9aca3e72bae206699e2984c9a70a30a355ca174bb93105b3219702cab2cda5c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5e8f4a51b3d4a35dadd32a7d6552c60d47589e4599b39b824011217c473b8ecb",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2015-05-18T13:35:44Z",
    "title_canon_sha256": "c76aff2843908c0190990b58170e32d1c261757dd710888ff6985e98c4ba11b2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1505.04632",
    "kind": "arxiv",
    "version": 2
  }
}