Pith Number

pith:T5PYAEGC

pith:2020:T5PYAEGCNO75YCA27IFDWC3EGK

not attested not anchored not stored refs pending

Multi-wavelength observations of the BL Lac object Fermi J1544-0649: one year after its awakening

A. K. H. Kong, B. T. Tang, C. W. Yang, J. Ding, J. F. Fan, J. Mao, L. M. Dou, L. Z. Wang, N. Jiang, P. H. T. Tam, P. S. Pal, R. F. Shen, T. Mufakharov, Y. B. Li, Y. D. Cui, Y. L. Ai, Y. Sotnikova, Z. H. Zhong

arxiv:2001.11772 v1 · 2020-01-31 · 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{T5PYAEGCNO75YCA27IFDWC3EGK}

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	2026-07-05T00:45:53.909413Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9f5f8010c26bbfdc081afa0a3b0b64328913b037446cfa962537dc345b282211

Aliases

arxiv: 2001.11772 · arxiv_version: 2001.11772v1 · doi: 10.48550/arxiv.2001.11772 · pith_short_12: T5PYAEGCNO75 · pith_short_16: T5PYAEGCNO75YCA2 · pith_short_8: T5PYAEGC

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/T5PYAEGCNO75YCA27IFDWC3EGK \
  | 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: 9f5f8010c26bbfdc081afa0a3b0b64328913b037446cfa962537dc345b282211

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "25eab4492a4beeaa43e16fef943be621b461ab39184cd064799fd63ef76afa84",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2020-01-31T11:21:35Z",
    "title_canon_sha256": "9351a304b9bd996f46e239206d344d4acc6c5df142626da60bab2f56b3dedf10"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2001.11772",
    "kind": "arxiv",
    "version": 1
  }
}