Pith Number

pith:D4CGICHS

pith:2013:D4CGICHSMGDWKYL4OI7NKK7KRJ

not attested not anchored not stored refs pending

An adaptive POD approximation method for the control of advection-diffusion equations

Alessandro Alla, Maurizio Falcone

arxiv:1302.4072 v1 · 2013-02-17 · 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{D4CGICHSMGDWKYL4OI7NKK7KRJ}

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	2026-05-18T01:20:21.511992Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1f046408f2618765617c723ed52bea8a5a0fe13d30f23e086212383e1c149908

Aliases

arxiv: 1302.4072 · arxiv_version: 1302.4072v1 · doi: 10.48550/arxiv.1302.4072 · pith_short_12: D4CGICHSMGDW · pith_short_16: D4CGICHSMGDWKYL4 · pith_short_8: D4CGICHS

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/D4CGICHSMGDWKYL4OI7NKK7KRJ \
  | 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: 1f046408f2618765617c723ed52bea8a5a0fe13d30f23e086212383e1c149908

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9230c0578407e983752aa94be6485e31b0d456b2e02749f6e09a254713bc3698",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2013-02-17T14:40:25Z",
    "title_canon_sha256": "5af1b4889fee0ae7e52e3a2eea723d548d1195f63758330e3f366e3a41658654"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1302.4072",
    "kind": "arxiv",
    "version": 1
  }
}