Pith Number

pith:3T42JFRC

pith:2015:3T42JFRCCRVMBRBALED75UCAY6

not attested not anchored not stored refs pending

Noether's theorem for higher-order variational problems of Herglotz type

Delfim F. M. Torres, Natalia Martins, Simao P. S. Santos

arxiv:1507.05911 v1 · 2015-07-21 · 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{3T42JFRCCRVMBRBALED75UCAY6}

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	2026-05-18T01:26:18.055542Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

dcf9a49622146ac0c4205907fed040c7897303cd01c7802771bc639dd459e333

Aliases

arxiv: 1507.05911 · arxiv_version: 1507.05911v1 · doi: 10.48550/arxiv.1507.05911 · pith_short_12: 3T42JFRCCRVM · pith_short_16: 3T42JFRCCRVMBRBA · pith_short_8: 3T42JFRC

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/3T42JFRCCRVMBRBALED75UCAY6 \
  | 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: dcf9a49622146ac0c4205907fed040c7897303cd01c7802771bc639dd459e333

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "69063a235b09dc1102b89551ee5b4a6cc010454950a2da3abc8c02ceefcdda39",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2015-07-21T16:57:04Z",
    "title_canon_sha256": "b34f7450bd2f0774ec6026d08e7af1809d03945d601093fd4411bb466a89a21b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1507.05911",
    "kind": "arxiv",
    "version": 1
  }
}