Pith Number

pith:UMUHBNGE

pith:2021:UMUHBNGE2PGUQZW3OFMOPCZCLK

not attested not anchored not stored refs pending

Direct laser writing for cardiac tissue engineering: a microfluidic heart on a chip with integrated transducers

Alice E. White, Christopher S. Chen, Christos Michas, David J. Bishop, Kamil L. Ekinci, Kehan Zhang, M. \c{C}a\u{g}atay Karakan, Noelle Pierce, Rachael K. Jayne

arxiv:2104.01175 v1 · 2021-04-02 · 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{UMUHBNGE2PGUQZW3OFMOPCZCLK}

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	2026-07-05T02:37:45.700631Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a32870b4c4d3cd4866db7158e78b225a8cca155b1a6963d4a316a09b5f4f5f83

Aliases

arxiv: 2104.01175 · arxiv_version: 2104.01175v1 · doi: 10.48550/arxiv.2104.01175 · pith_short_12: UMUHBNGE2PGU · pith_short_16: UMUHBNGE2PGUQZW3 · pith_short_8: UMUHBNGE

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/UMUHBNGE2PGUQZW3OFMOPCZCLK \
  | 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: a32870b4c4d3cd4866db7158e78b225a8cca155b1a6963d4a316a09b5f4f5f83

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8da2d7a9d0fd515a04c9dc157b81a9c1ff6537487c68217ba84085ca94a50e13",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "q-bio.TO",
    "submitted_at": "2021-04-02T17:49:51Z",
    "title_canon_sha256": "bebd3f9492864d280662e1858cc2355199975c54a0e9b97e3fd30c51453b576f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2104.01175",
    "kind": "arxiv",
    "version": 1
  }
}