Pith Number

pith:WD4EZPVA

pith:2021:WD4EZPVALY5CRRWGVPLPULM3SB

not attested not anchored not stored refs pending

Sarc-Graph: Automated segmentation, tracking, and analysis of sarcomeres in hiPSC-derived cardiomyocytes

Bill Zhao, Christopher S. Chen, Emma Lejeune, Kehan Zhang

arxiv:2102.02412 v1 · 2021-02-04 · q-bio.QM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{WD4EZPVALY5CRRWGVPLPULM3SB}

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	2026-07-05T03:31:57.278938Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b0f84cbea05e3a28c6c6abd6fa2d9b907d1f182f2260a0dd31685b82982fe29f

Aliases

arxiv: 2102.02412 · arxiv_version: 2102.02412v1 · doi: 10.48550/arxiv.2102.02412 · pith_short_12: WD4EZPVALY5C · pith_short_16: WD4EZPVALY5CRRWG · pith_short_8: WD4EZPVA

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/WD4EZPVALY5CRRWGVPLPULM3SB \
  | 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: b0f84cbea05e3a28c6c6abd6fa2d9b907d1f182f2260a0dd31685b82982fe29f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8cd465d31adb89aafbe3a685c236b0f8864c24c22d11db272cfc646da82d2e1d",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "q-bio.QM",
    "submitted_at": "2021-02-04T04:57:25Z",
    "title_canon_sha256": "40e2d2ef30dc5d027ecce2893952dd5ae0572f7000cb52153cf3e31dca782b65"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2102.02412",
    "kind": "arxiv",
    "version": 1
  }
}