Pith Number

pith:P4C6CZO2

pith:2025:P4C6CZO2QOFKFGHQH3FVUNOXDW

not attested not anchored not stored refs pending

Ant Colony Optimization for Density Functionals in Strongly Correlated Systems

G. M. Tonin, R. M. Dos Santos, T. Pauletti, V. V. Fran\c{c}a

arxiv:2504.20317 v1 · 2025-04-29 · cond-mat.str-el · physics.comp-ph · physics.data-an

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

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	2026-05-18T03:09:35.936172Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7f05e165da838aa298f03ecb5a35d71da4d53a2743d703898a0666b75cd8278f

Aliases

arxiv: 2504.20317 · arxiv_version: 2504.20317v1 · doi: 10.48550/arxiv.2504.20317 · pith_short_12: P4C6CZO2QOFK · pith_short_16: P4C6CZO2QOFKFGHQ · pith_short_8: P4C6CZO2

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/P4C6CZO2QOFKFGHQH3FVUNOXDW \
  | 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: 7f05e165da838aa298f03ecb5a35d71da4d53a2743d703898a0666b75cd8278f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d1b7913cd06c4f76e2f99859d55439aca76baabb88fe6d02c7e8e23e189867c2",
    "cross_cats_sorted": [
      "physics.comp-ph",
      "physics.data-an"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cond-mat.str-el",
    "submitted_at": "2025-04-29T00:06:54Z",
    "title_canon_sha256": "bb0c4c2322911a189bf9e2146b7d94c816b877eee346190ff516c00961c895ad"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2504.20317",
    "kind": "arxiv",
    "version": 1
  }
}