Pith Number

pith:VDAW23OE

pith:2026:VDAW23OEKZKV3JQS3LYXYT5X7T

not attested not anchored not stored refs pending

The Chirp-Mass Ladder: A New Rung Emerges

Vaibhav Tiwari

arxiv:2606.18081 v1 · 2026-06-16 · astro-ph.HE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{VDAW23OEKZKV3JQS3LYXYT5X7T}

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	2026-06-19T16:10:48.031518Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a8c16d6dc456555da612daf17c4fb7fcfee93c4a7ec8b6e2d9ae3b61033ecb8c

Aliases

arxiv: 2606.18081 · arxiv_version: 2606.18081v1 · doi: 10.48550/arxiv.2606.18081 · pith_short_12: VDAW23OEKZKV · pith_short_16: VDAW23OEKZKV3JQS · pith_short_8: VDAW23OE

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/VDAW23OEKZKV3JQS3LYXYT5X7T \
  | 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: a8c16d6dc456555da612daf17c4fb7fcfee93c4a7ec8b6e2d9ae3b61033ecb8c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7121fb5b0ca5656348eec189859f365aac70b6d75f53818e5899e9772908c470",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2026-06-16T15:45:58Z",
    "title_canon_sha256": "d8b496a290b715f63a6a6fe0a781fb25c9201c2544885e75c36f75150c41c97c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2606.18081",
    "kind": "arxiv",
    "version": 1
  }
}