Pith Number

pith:A3TXL5SE

pith:2019:A3TXL5SEEDJRMAUFCQTZS2BYSE

not attested not anchored not stored refs pending

Signaling gradients in surface dynamics as basis for planarian regeneration

Angela Stevens, Arnd Scheel, Christoph Tenbrock

arxiv:1908.04253 v2 · 2019-08-12 · q-bio.QM · nlin.AO · nlin.PS

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{A3TXL5SEEDJRMAUFCQTZS2BYSE}

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	2026-07-04T23:55:13.434847Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

06e775f64420d31602851427996838911d6424325f14f4403bbdcdeff0baa5bd

Aliases

arxiv: 1908.04253 · arxiv_version: 1908.04253v2 · doi: 10.48550/arxiv.1908.04253 · pith_short_12: A3TXL5SEEDJR · pith_short_16: A3TXL5SEEDJRMAUF · pith_short_8: A3TXL5SE

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/A3TXL5SEEDJRMAUFCQTZS2BYSE \
  | 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: 06e775f64420d31602851427996838911d6424325f14f4403bbdcdeff0baa5bd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1b1cb62b16e383ec8962752ee022a68b61c2289f1cf379094d6007214d373fe4",
    "cross_cats_sorted": [
      "nlin.AO",
      "nlin.PS"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "q-bio.QM",
    "submitted_at": "2019-08-12T17:02:07Z",
    "title_canon_sha256": "bc11c2940cf2c3a64438a2b28f466064e603a61e662425b97d29a4d6ecd4e1bc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1908.04253",
    "kind": "arxiv",
    "version": 2
  }
}