Pith Number

pith:NQQ3AE7R

pith:2016:NQQ3AE7RRHO4GIUPTBDOPTK7MP

not attested not anchored not stored refs pending

On the regularity of solutions of one dimensional variational obstacle problems

Jean-Philippe Mandallena

arxiv:1606.03974 v2 · 2016-06-13 · math.CA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{NQQ3AE7RRHO4GIUPTBDOPTK7MP}

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	2026-05-18T01:06:20.547343Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6c21b013f189ddc3228f9846e7cd5f63e8ea56925de092418974a499fd5e1f63

Aliases

arxiv: 1606.03974 · arxiv_version: 1606.03974v2 · doi: 10.48550/arxiv.1606.03974 · pith_short_12: NQQ3AE7RRHO4 · pith_short_16: NQQ3AE7RRHO4GIUP · pith_short_8: NQQ3AE7R

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/NQQ3AE7RRHO4GIUPTBDOPTK7MP \
  | 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: 6c21b013f189ddc3228f9846e7cd5f63e8ea56925de092418974a499fd5e1f63

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "628eb353a90834ff6d38ec1c6526a7fd50de4f120cd99e0bdd2a7ded5275c22b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CA",
    "submitted_at": "2016-06-13T14:40:26Z",
    "title_canon_sha256": "031c711931eac747b069d54ee783ce6c12d16d079385f91571334a635f846920"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1606.03974",
    "kind": "arxiv",
    "version": 2
  }
}