Pith Number

pith:TPLDKQAI

pith:2024:TPLDKQAIHYWSN4BW52QFRNNHOU

not attested not anchored not stored refs pending

On the time dependency of $a_0$

Antonino Del Popolo, Man Ho Chan

arxiv:2405.01841 v1 · 2024-05-03 · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{TPLDKQAIHYWSN4BW52QFRNNHOU}

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	2026-07-05T08:15:02.775469Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9bd63540083e2d26f036eea058b5a775248a2d9bea9665cd0f6f1e7e7f56b03c

Aliases

arxiv: 2405.01841 · arxiv_version: 2405.01841v1 · doi: 10.48550/arxiv.2405.01841 · pith_short_12: TPLDKQAIHYWS · pith_short_16: TPLDKQAIHYWSN4BW · pith_short_8: TPLDKQAI

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/TPLDKQAIHYWSN4BW52QFRNNHOU \
  | 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: 9bd63540083e2d26f036eea058b5a775248a2d9bea9665cd0f6f1e7e7f56b03c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f86ab46ad58c89023e322e64fb7aa8b20f322755ef21c56ac01e77e062421833",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2024-05-03T04:13:33Z",
    "title_canon_sha256": "db239a8f08cb24c3d31896ebd4f8aadb62006f0b431d22402bf507f4b18d7b34"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2405.01841",
    "kind": "arxiv",
    "version": 1
  }
}