Pith Number

pith:YKTT572V

pith:1999:YKTT572V7C4LHKHN7MMJFFDOLW

not attested not anchored not stored refs pending

Astrophysical Probes of the Constancy of the Velocity of Light

Academy of Athens), CERN), D.V. Nanopoulos (Texas A, HARC, J. Ellis (CERN), K. Farakos (NTU Athens), M, N.E. Mavromatos (Oxford, U of Athens), V. Mitsou (CERN

arxiv:astro-ph/9907340 v1 · 1999-07-24 · astro-ph · gr-qc · hep-ph · hep-th

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{YKTT572V7C4LHKHN7MMJFFDOLW}

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

1 paper in Pith

Below the Schwinger critical magnetic field value, quantum vacuum and gamma-ray bursts delay

Receipt and verification

First computed	2026-07-04T15:29:18.942169Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c2a73eff55f8b8b3a8edfb1892946e5d8e6dbd8bc1d2f237cbe4a6636a12766e

Aliases

arxiv: astro-ph/9907340 · arxiv_version: astro-ph/9907340v1 · doi: 10.48550/arxiv.astro-ph/9907340 · pith_short_12: YKTT572V7C4L · pith_short_16: YKTT572V7C4LHKHN · pith_short_8: YKTT572V

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/YKTT572V7C4LHKHN7MMJFFDOLW \
  | 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: c2a73eff55f8b8b3a8edfb1892946e5d8e6dbd8bc1d2f237cbe4a6636a12766e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8e6bafb6c3d8020387ecf5553694f71ea2e591b6ac67f56d30fa63ed83385d88",
    "cross_cats_sorted": [
      "gr-qc",
      "hep-ph",
      "hep-th"
    ],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1999-07-24T15:07:02Z",
    "title_canon_sha256": "753c33f23a5149dcc11b0d644a4b20b1ebff8093cd9f1d703915ac0189f1571a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9907340",
    "kind": "arxiv",
    "version": 1
  }
}