Pith Number

pith:PYAE77WZ

pith:2017:PYAE77WZAGS6NBYJQAM6MNPNUB

not attested not anchored not stored refs pending

The Locus of the apices of projectile trajectories under constant drag

H. Hern\'andez-Salda\~na

arxiv:1705.10597 v1 · 2017-05-25 · physics.gen-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{PYAE77WZAGS6NBYJQAM6MNPNUB}

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	2026-05-18T00:30:04.111074Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7e004ffed901a5e687098019e635eda0662f22c9aa80c90ac1ccb6844b424290

Aliases

arxiv: 1705.10597 · arxiv_version: 1705.10597v1 · doi: 10.48550/arxiv.1705.10597 · pith_short_12: PYAE77WZAGS6 · pith_short_16: PYAE77WZAGS6NBYJ · pith_short_8: PYAE77WZ

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/PYAE77WZAGS6NBYJQAM6MNPNUB \
  | 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: 7e004ffed901a5e687098019e635eda0662f22c9aa80c90ac1ccb6844b424290

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6531b7fc671014066e72dfadcaf882196e19da618cfa8f9604622ff14b67d620",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.gen-ph",
    "submitted_at": "2017-05-25T21:30:20Z",
    "title_canon_sha256": "f45100f3043a64e48950db4971e8425daf68a1b178ea807dc7e3365da5333d18"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1705.10597",
    "kind": "arxiv",
    "version": 1
  }
}