Pith Number

pith:WVP7WL45

pith:2017:WVP7WL45N3I6WRKSTGMHTMQYQ6

not attested not anchored not stored refs pending

The Kelvin Water Dropper: Converting a physics toy into an educational device

Bipin K Kaila, B. R. Sivasankaran, Luxmi Rani, Navinder Singh, Rahul Shastri, Shreyash Garg

arxiv:1707.06861 v1 · 2017-07-20 · physics.ed-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{WVP7WL45N3I6WRKSTGMHTMQYQ6}

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	2026-05-18T00:39:51.330130Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b55ffb2f9d6ed1eb4552999879b21887b2f00e1612b21c7de4f3fbf852b3165d

Aliases

arxiv: 1707.06861 · arxiv_version: 1707.06861v1 · doi: 10.48550/arxiv.1707.06861 · pith_short_12: WVP7WL45N3I6 · pith_short_16: WVP7WL45N3I6WRKS · pith_short_8: WVP7WL45

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/WVP7WL45N3I6WRKSTGMHTMQYQ6 \
  | 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: b55ffb2f9d6ed1eb4552999879b21887b2f00e1612b21c7de4f3fbf852b3165d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c11d8e96b1795778ec70751bbef782b14e65cbaa0ffe9b15563b92c7a0b0a8e3",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.ed-ph",
    "submitted_at": "2017-07-20T16:53:50Z",
    "title_canon_sha256": "f917b793723ece9c820183c158182657d8c47181e171aa80ece108e43bc5dbbb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1707.06861",
    "kind": "arxiv",
    "version": 1
  }
}