Pith Number

pith:LDOCC3K2

pith:2009:LDOCC3K2ICXVZ7HUX63X5R7HUU

not attested not anchored not stored refs pending

Dynamic Updating for L1 Minimization

Justin Romberg, Muhammad Salman Asif

arxiv:0903.1443 v2 · 2009-03-09 · 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{LDOCC3K2ICXVZ7HUX63X5R7HUU}

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	2026-05-18T02:14:36.616408Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

58dc216d5a40af5cfcf4bfb77ec7e7a53f30d49255a2e491001235e43d4bebdc

Aliases

arxiv: 0903.1443 · arxiv_version: 0903.1443v2 · doi: 10.48550/arxiv.0903.1443 · pith_short_12: LDOCC3K2ICXV · pith_short_16: LDOCC3K2ICXVZ7HU · pith_short_8: LDOCC3K2

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/LDOCC3K2ICXVZ7HUX63X5R7HUU \
  | 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: 58dc216d5a40af5cfcf4bfb77ec7e7a53f30d49255a2e491001235e43d4bebdc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "dea71af5869c9f05d6dcd4c18e2bf0dbd815334884193e2940a6198b0f4885a0",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2009-03-09T19:27:28Z",
    "title_canon_sha256": "122bc0a78efec4a8c99d130e155edbfb09eed60108b0f8f6b3559fdbb26746aa"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0903.1443",
    "kind": "arxiv",
    "version": 2
  }
}