Pith Number

pith:CD647I6D

pith:2016:CD647I6DQIKXYHTGEOEJY2MOXK

not attested not anchored not stored refs pending

New constraints on quantum foam models from X-ray and gamma-ray observations of distant quasars

David Pooley (Trinity U.), Eric S. Perlman (FIT), Inc.), John DeVore (Visidyne, Saul A. Rappaport (MIT), Wayne A. Christiansen (UNC), Y. Jack Ng

arxiv:1607.08551 v1 · 2016-07-28 · astro-ph.CO · gr-qc

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{CD647I6DQIKXYHTGEOEJY2MOXK}

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	2026-05-18T01:10:18.910786Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

10fdcfa3c382157c1e6623889c698eba8ed8ef8295273401061a4abc34e1073e

Aliases

arxiv: 1607.08551 · arxiv_version: 1607.08551v1 · doi: 10.48550/arxiv.1607.08551 · pith_short_12: CD647I6DQIKX · pith_short_16: CD647I6DQIKXYHTG · pith_short_8: CD647I6D

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/CD647I6DQIKXYHTGEOEJY2MOXK \
  | 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: 10fdcfa3c382157c1e6623889c698eba8ed8ef8295273401061a4abc34e1073e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "00f94635eff9b943d4d0103b07738e03d51c78a7928739d7d6e7c2ef8ba1bb83",
    "cross_cats_sorted": [
      "gr-qc"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2016-07-28T18:08:50Z",
    "title_canon_sha256": "cbe7097e9df995f4146c1c49ca343a99946279445ebfc0b50ba24122c6245501"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1607.08551",
    "kind": "arxiv",
    "version": 1
  }
}