Pith Number

pith:K4HVF22B

pith:2007:K4HVF22BL5NLNAT5MWIQQNGKVM

not attested not anchored not stored refs pending

Deep Chandra and multicolor HST observations of the jets of 3C 371 and PKS 2201+044

C. C. Cheung (3), C. M. Urry (4) ((1) NASA/GSFC; (2) INAF-Osservatorio Astronomico di Brera; (3) NRAO, D. Donato (1), F. Tavecchio (2), L. Maraschi (2), R. M. Sambruna (1), Stanford; (4) Yale)

arxiv:0707.3980 v1 · 2007-07-26 · astro-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{K4HVF22BL5NLNAT5MWIQQNGKVM}

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	2026-07-04T17:04:51.399297Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

570f52eb415f5ab6827d65910834caab1323a28062fcfebdad8a027e94c287a7

Aliases

arxiv: 0707.3980 · arxiv_version: 0707.3980v1 · doi: 10.48550/arxiv.0707.3980 · pith_short_12: K4HVF22BL5NL · pith_short_16: K4HVF22BL5NLNAT5 · pith_short_8: K4HVF22B

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/K4HVF22BL5NLNAT5MWIQQNGKVM \
  | 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: 570f52eb415f5ab6827d65910834caab1323a28062fcfebdad8a027e94c287a7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "602ee28be66b8081f7c199828d6f6c0267292a40ec53b4fec1f515a112dc9bbc",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2007-07-26T18:03:34Z",
    "title_canon_sha256": "ab9047e9e1b48bfa5a18f985eb308dd5dbb0088d6d44a11df9e78b031feeb73e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0707.3980",
    "kind": "arxiv",
    "version": 1
  }
}