Pith Number

pith:OBKSWVMM

pith:2017:OBKSWVMMXCUWQ5OGPVW5LHCQJ2

not attested not anchored not stored refs pending

Verifications of primal energy identities for variational problems with obstacles

Jan Valdman, Sergey Repin

arxiv:1710.08097 v1 · 2017-10-23 · math.AP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{OBKSWVMMXCUWQ5OGPVW5LHCQJ2}

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	2026-05-18T00:32:19.041473Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

70552b558cb8a96875c67d6dd59c504ead8b4b133330cdc81715356c1d5f571f

Aliases

arxiv: 1710.08097 · arxiv_version: 1710.08097v1 · doi: 10.48550/arxiv.1710.08097 · pith_short_12: OBKSWVMMXCUW · pith_short_16: OBKSWVMMXCUWQ5OG · pith_short_8: OBKSWVMM

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/OBKSWVMMXCUWQ5OGPVW5LHCQJ2 \
  | 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: 70552b558cb8a96875c67d6dd59c504ead8b4b133330cdc81715356c1d5f571f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7b14f621aca8ff228d60880f7bdadca1c37d09f7a88c5de45326e601f04a9621",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2017-10-23T05:44:46Z",
    "title_canon_sha256": "145cc4eccf88348d20bc78c221a8072e26c33574ab781052110a03cb5f0896cf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1710.08097",
    "kind": "arxiv",
    "version": 1
  }
}