Pith Number

pith:IQGA2GDA

pith:2010:IQGA2GDAA7HVXDOWKYVIETACNW

not attested not anchored not stored refs pending

J16021+3326: New Multi-Frequency Observations of a Complex Source

A.C.S. Readhead, G.B. Taylor, J.F. Helmboldt, J.L. Richards, R.W. Romani, S.E. Healey, S.E. Tremblay

arxiv:1001.5423 v1 · 2010-01-29 · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{IQGA2GDAA7HVXDOWKYVIETACNW}

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	2026-05-18T02:09:22.138283Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

440c0d186007cf5b8dd6562a824c026d898df32c8dca16216ba8b8f53f2a0792

Aliases

arxiv: 1001.5423 · arxiv_version: 1001.5423v1 · doi: 10.48550/arxiv.1001.5423 · pith_short_12: IQGA2GDAA7HV · pith_short_16: IQGA2GDAA7HVXDOW · pith_short_8: IQGA2GDA

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/IQGA2GDAA7HVXDOWKYVIETACNW \
  | 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: 440c0d186007cf5b8dd6562a824c026d898df32c8dca16216ba8b8f53f2a0792

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "edd5f191f26ee308a0ece1c837de2cba098a3e159c7ef616a0c2df6c154a5b52",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2010-01-29T15:43:02Z",
    "title_canon_sha256": "cda08628f8e8bf2950a6571f049f351817321f71ae765eaedd3e92d945abc4b7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1001.5423",
    "kind": "arxiv",
    "version": 1
  }
}