Pith Number

pith:THVED6PQ

pith:2016:THVED6PQEVLUATFYRNXZMEVPBX

not attested not anchored not stored refs pending

A Roadmap to Interstellar Flight

Philip Lubin

arxiv:1604.01356 v8 · 2016-04-05 · astro-ph.EP · astro-ph.IM · physics.pop-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{THVED6PQEVLUATFYRNXZMEVPBX}

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.

Cited by

3 papers in Pith

High-Power Laser Drives Motion in Ultra-thin Photonic Crystal Lightsails via Radiation Pressure

Testing Black Holes with Interstellar Missions: I. Orbiting Probes

Redshifted civilizations, galactic empires, and the Fermi paradox

Receipt and verification

First computed	2026-07-05T03:50:11.542099Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

99ea41f9f02557404cb88b6f9612af0dfb85a78745085f2229163f2dd35a3e69

Aliases

arxiv: 1604.01356 · arxiv_version: 1604.01356v8 · doi: 10.48550/arxiv.1604.01356 · pith_short_12: THVED6PQEVLU · pith_short_16: THVED6PQEVLUATFY · pith_short_8: THVED6PQ

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/THVED6PQEVLUATFYRNXZMEVPBX \
  | 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: 99ea41f9f02557404cb88b6f9612af0dfb85a78745085f2229163f2dd35a3e69

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "60ff461b8526567b3a16e7bc3b2dcf9c100c01b1411778dff6e9df851f574e83",
    "cross_cats_sorted": [
      "astro-ph.IM",
      "physics.pop-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2016-04-05T18:25:42Z",
    "title_canon_sha256": "a6726b20f809e130fea32c9b4efb20be9776c5821b09e73549a6853182f652b5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1604.01356",
    "kind": "arxiv",
    "version": 8
  }
}