Pith Number

pith:UILD77CS

pith:2009:UILD77CSSNMULCVSOPT6XSST63

not attested not anchored not stored refs pending

Initial/boundary-value problems of tumor growth within a host tissue

Andrea Tosin

arxiv:0911.5231 v2 · 2009-11-27 · math-ph · math.AP · math.MP · q-bio.TO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{UILD77CSSNMULCVSOPT6XSST63}

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	2026-05-18T00:52:33.026478Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a2163ffc529359458ab273e7ebca53f6d8e3bbe799ea66c7c4e0f031b63f51d8

Aliases

arxiv: 0911.5231 · arxiv_version: 0911.5231v2 · doi: 10.48550/arxiv.0911.5231 · pith_short_12: UILD77CSSNMU · pith_short_16: UILD77CSSNMULCVS · pith_short_8: UILD77CS

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/UILD77CSSNMULCVSOPT6XSST63 \
  | 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: a2163ffc529359458ab273e7ebca53f6d8e3bbe799ea66c7c4e0f031b63f51d8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "dccded3720865880d637b05590fa5f8d31b101df84168a60705c8c91443fd62b",
    "cross_cats_sorted": [
      "math.AP",
      "math.MP",
      "q-bio.TO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math-ph",
    "submitted_at": "2009-11-27T10:15:28Z",
    "title_canon_sha256": "33a4c5ca41e652b2834165de856100f33daa4ceb326f6c8d20a7c98a4253d2c7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0911.5231",
    "kind": "arxiv",
    "version": 2
  }
}