Pith Number

pith:PH4SOZZM

pith:2006:PH4SOZZM3NFWW6MVEQD3SDFB5G

not attested not anchored not stored refs pending

Optimal filters on the sphere

A. N. Lasenby, J. D. McEwen, M. P. Hobson

arxiv:astro-ph/0612688 v2 · 2006-12-22 · astro-ph · cs.IT · math.IT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{PH4SOZZM3NFWW6MVEQD3SDFB5G}

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	2026-05-18T04:10:09.384118Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

79f927672cdb4b6b79952407b90ca1e9964f29bde6a8f0b8f57ae5e7fda523d6

Aliases

arxiv: astro-ph/0612688 · arxiv_version: astro-ph/0612688v2 · doi: 10.48550/arxiv.astro-ph/0612688 · pith_short_12: PH4SOZZM3NFW · pith_short_16: PH4SOZZM3NFWW6MV · pith_short_8: PH4SOZZM

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/PH4SOZZM3NFWW6MVEQD3SDFB5G \
  | 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: 79f927672cdb4b6b79952407b90ca1e9964f29bde6a8f0b8f57ae5e7fda523d6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ea7cdc04bc81ec3cb706b100a4dcfd5c0d37e2ff6d341e84ba374660bd4899e4",
    "cross_cats_sorted": [
      "cs.IT",
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph",
    "submitted_at": "2006-12-22T15:12:07Z",
    "title_canon_sha256": "24916dd5e184c1d6d38d0707febc6ae6e5666118c3cf14d8a11fd67218146a10"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0612688",
    "kind": "arxiv",
    "version": 2
  }
}