Pith Number

pith:NGF7OXLW

pith:2015:NGF7OXLWSSWA5R7TXSBB3D7KAR

not attested not anchored not stored refs pending

Using Atom Interferometry to Detect Dark Energy

Clare Burrage, Edmund J. Copeland

arxiv:1507.07493 v1 · 2015-07-27 · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{NGF7OXLWSSWA5R7TXSBB3D7KAR}

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	2026-05-18T01:36:16.272859Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

698bf75d7694ac0ec7f3bc821d8fea046ac58f36e3393bda7092b14e88d8a88e

Aliases

arxiv: 1507.07493 · arxiv_version: 1507.07493v1 · doi: 10.48550/arxiv.1507.07493 · pith_short_12: NGF7OXLWSSWA · pith_short_16: NGF7OXLWSSWA5R7T · pith_short_8: NGF7OXLW

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/NGF7OXLWSSWA5R7TXSBB3D7KAR \
  | 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: 698bf75d7694ac0ec7f3bc821d8fea046ac58f36e3393bda7092b14e88d8a88e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c9fd2923a2f9a00fb7dc34267e8a30ec91ad430ab16dfa407a9ce0c5736c3e08",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2015-07-27T17:28:59Z",
    "title_canon_sha256": "24a0980d11ce3fd8811e1a936205f8a5a8aeea15c2e1263067af289b73fef01a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1507.07493",
    "kind": "arxiv",
    "version": 1
  }
}