Pith Number

pith:RU335QPP

pith:2020:RU335QPPIWVVEB2IS5DQB2S5AI

not attested not anchored not stored refs pending

Primordial nucleosynthesis with varying fundamental constants: Improved constraints and a possible solution to the Lithium problem

C. J. A. P. Martins, M. T. Clara

arxiv:2001.01787 v1 · 2020-01-06 · astro-ph.CO · hep-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{RU335QPPIWVVEB2IS5DQB2S5AI}

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

2 papers in Pith

Temperature-Dependent CPT Violation: Constraints from Big Bang Nucleosynthesis

Probing Unification Scenarios with Big Bang Nucleosynthesis

Receipt and verification

First computed	2026-07-05T00:34:51.284113Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8d37bec1ef45ab520748974700ea5d0207b189c11f303127b4534a412b1da047

Aliases

arxiv: 2001.01787 · arxiv_version: 2001.01787v1 · doi: 10.48550/arxiv.2001.01787 · pith_short_12: RU335QPPIWVV · pith_short_16: RU335QPPIWVVEB2I · pith_short_8: RU335QPP

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/RU335QPPIWVVEB2IS5DQB2S5AI \
  | 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: 8d37bec1ef45ab520748974700ea5d0207b189c11f303127b4534a412b1da047

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "783a37db03ae75d354a9a7bed5f30ea42054fb7fff34c3d90d6b46c06a39b7c8",
    "cross_cats_sorted": [
      "hep-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2020-01-06T21:46:05Z",
    "title_canon_sha256": "aa1b0c134024c44afe180113c5c768249794aa557109efc4e1f6e31d4991aa64"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2001.01787",
    "kind": "arxiv",
    "version": 1
  }
}