Pith Number

pith:NP53VYZX

pith:2015:NP53VYZX35PPH5EJ2S4DE6EQRX

not attested not anchored not stored refs pending

On the reconstruction of parameters of a moving fluid from the Dirichlet-to-Neumann map

Alexey Agaltsov

arxiv:1512.06367 v1 · 2015-12-20 · 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{NP53VYZX35PPH5EJ2S4DE6EQRX}

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	2026-05-18T00:50:57.530344Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6bfbbae337df5ef3f489d4b83278908dc764e052a924ab54f86b37d0d93705af

Aliases

arxiv: 1512.06367 · arxiv_version: 1512.06367v1 · doi: 10.48550/arxiv.1512.06367 · pith_short_12: NP53VYZX35PP · pith_short_16: NP53VYZX35PPH5EJ · pith_short_8: NP53VYZX

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/NP53VYZX35PPH5EJ2S4DE6EQRX \
  | 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: 6bfbbae337df5ef3f489d4b83278908dc764e052a924ab54f86b37d0d93705af

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cf043a502e36bb7c8f448aafbfef6472559c04a5c43913ec516ae404b030bbc2",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2015-12-20T13:01:30Z",
    "title_canon_sha256": "6773b928d6368fb34af344ffa0c1484666b88958da4eee55fa2f34231fce2682"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1512.06367",
    "kind": "arxiv",
    "version": 1
  }
}