Pith Number

pith:IQUGFEM2

pith:2009:IQUGFEM26QIPYCPORXUHF3IPSS

not attested not anchored not stored refs pending

No Pain, No Gain -- On the Challenges and Promises of Charm Studies

I.I. Bigi

arxiv:0907.2950 v1 · 2009-07-17 · 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{IQUGFEM26QIPYCPORXUHF3IPSS}

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	2026-07-04T15:46:16.554863Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

442862919af410fc09ee8de872ed0f94abdbdf28d111f804449330ca9b4f4e93

Aliases

arxiv: 0907.2950 · arxiv_version: 0907.2950v1 · doi: 10.48550/arxiv.0907.2950 · pith_short_12: IQUGFEM26QIP · pith_short_16: IQUGFEM26QIPYCPO · pith_short_8: IQUGFEM2

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/IQUGFEM26QIPYCPORXUHF3IPSS \
  | 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: 442862919af410fc09ee8de872ed0f94abdbdf28d111f804449330ca9b4f4e93

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1f019e44542bebe49b8d9e3a7c01656fadfc53c9be882cc9707bee85dbb6a25b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-ph",
    "submitted_at": "2009-07-17T04:13:56Z",
    "title_canon_sha256": "19ae341ef683e32f37148abf7f475bfa8474122481cfdc68f1a0479ce5c8dc38"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0907.2950",
    "kind": "arxiv",
    "version": 1
  }
}