Pith Number

pith:2SCJ4W53

pith:2015:2SCJ4W53Z4RJCZSPZ5GLQS6ZCG

not attested not anchored not stored refs pending

Free boundary problems for Tumor Growth: a Viscosity solutions approach

Benoit Perthame, Inwon C. Kim, Panagiotis E. Souganidis

arxiv:1507.00796 v1 · 2015-07-03 · 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{2SCJ4W53Z4RJCZSPZ5GLQS6ZCG}

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	2026-05-18T01:37:22.698863Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d4849e5bbbcf2291664fcf4cb84bd911b65d0523fea2007585320f3f035db743

Aliases

arxiv: 1507.00796 · arxiv_version: 1507.00796v1 · doi: 10.48550/arxiv.1507.00796 · pith_short_12: 2SCJ4W53Z4RJ · pith_short_16: 2SCJ4W53Z4RJCZSP · pith_short_8: 2SCJ4W53

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/2SCJ4W53Z4RJCZSPZ5GLQS6ZCG \
  | 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: d4849e5bbbcf2291664fcf4cb84bd911b65d0523fea2007585320f3f035db743

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e01c21b51ba3d0f3a200c4c7b1e70052bf8c9c4d99e1fa0ef3cc89e2af0030ae",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2015-07-03T01:12:40Z",
    "title_canon_sha256": "d9567e4d22d6d3742d7f88da4d2a0c4b21d607eb6db92f4ef6c1b16355dc47a6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1507.00796",
    "kind": "arxiv",
    "version": 1
  }
}