Pith Number

pith:6ZCECJO7

pith:2015:6ZCECJO7UIBSUIF4M33VKOSU54

not attested not anchored not stored refs pending

What can we learn from a sharply falling positron fraction?

Joseph Silk, Kumiko Kotera, Timur Delahaye

arxiv:1504.03336 v1 · 2015-04-13 · astro-ph.HE · hep-ex · 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{6ZCECJO7UIBSUIF4M33VKOSU54}

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	2026-05-18T01:24:19.168279Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f6444125dfa2032a20bc66f7553a54ef35e8244e0807b3138b8d6dad1804651e

Aliases

arxiv: 1504.03336 · arxiv_version: 1504.03336v1 · doi: 10.48550/arxiv.1504.03336 · pith_short_12: 6ZCECJO7UIBS · pith_short_16: 6ZCECJO7UIBSUIF4 · pith_short_8: 6ZCECJO7

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/6ZCECJO7UIBSUIF4M33VKOSU54 \
  | 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: f6444125dfa2032a20bc66f7553a54ef35e8244e0807b3138b8d6dad1804651e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3b5cb794f53727163f7ec0d9c6e09ca5252fffaece263def85fa7505f248d6bf",
    "cross_cats_sorted": [
      "hep-ex",
      "hep-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2015-04-13T20:01:14Z",
    "title_canon_sha256": "e51af6e8f55c52a5a3ce6090c87b5153af1a4bb5ecbd52de239db90d34573891"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1504.03336",
    "kind": "arxiv",
    "version": 1
  }
}