Pith Number

pith:QCKRDBNA

pith:2009:QCKRDBNAARW5CWAMV2U64NCTP3

not attested not anchored not stored refs pending

Apparent Faster-Than-Light Pulse Propagation in Interstellar Space: A new probe of the Interstellar Medium

A. Ford, A. Garcia, D. Fleckenstein, F. A. Jenet, J. Rivera, K. Stovall, R. Miller

arxiv:0909.2445 v3 · 2009-09-13 · astro-ph.GA · astro-ph.IM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QCKRDBNAARW5CWAMV2U64NCTP3}

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	2026-05-18T02:34:30.261435Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

80951185a0046dd1580caea9ee34537ef0f07021a1711815125973a2304be55b

Aliases

arxiv: 0909.2445 · arxiv_version: 0909.2445v3 · doi: 10.48550/arxiv.0909.2445 · pith_short_12: QCKRDBNAARW5 · pith_short_16: QCKRDBNAARW5CWAM · pith_short_8: QCKRDBNA

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/QCKRDBNAARW5CWAMV2U64NCTP3 \
  | 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: 80951185a0046dd1580caea9ee34537ef0f07021a1711815125973a2304be55b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4b9b6dd3a148d38d11fdda238222c391bb4da2e70363c02c4a2571417f1efd7e",
    "cross_cats_sorted": [
      "astro-ph.IM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2009-09-13T20:30:28Z",
    "title_canon_sha256": "d5b40ebc44a979c283013de8c446dcfe11e9a83b4a141e4086f02ba69a5e0ecf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0909.2445",
    "kind": "arxiv",
    "version": 3
  }
}