Pith Number

pith:673CL6LN

pith:2021:673CL6LNS2AZGLLITMZP6J36RW

not attested not anchored not stored refs pending

Velocity-resolved Reverberation Mapping of Changing-look AGN NGC 2617

Chen. Hu, Hai-Cheng. Feng, H. T. Liu, J. M. Bai, Kai-Xing. Lu, Ming. Xiao, Sen. Yang, Sha-Sha. Li, Zi-Xu. Yang

arxiv:2103.03508 v1 · 2021-03-05 · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{673CL6LNS2AZGLLITMZP6J36RW}

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	2026-07-05T02:41:16.852794Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f7f625f96d9681932d689b32ff277e8d9b2e31147f5051f497b20ae47b85e52c

Aliases

arxiv: 2103.03508 · arxiv_version: 2103.03508v1 · doi: 10.48550/arxiv.2103.03508 · pith_short_12: 673CL6LNS2AZ · pith_short_16: 673CL6LNS2AZGLLI · pith_short_8: 673CL6LN

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/673CL6LNS2AZGLLITMZP6J36RW \
  | 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: f7f625f96d9681932d689b32ff277e8d9b2e31147f5051f497b20ae47b85e52c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d13da9795d19122d6dcffdec0795164b940489ff41b2f8fd77ccb8951ba7c49f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2021-03-05T07:34:50Z",
    "title_canon_sha256": "274c8d839c5c8973570fc813e860c42d5e256315f946b936215c18fc7752ce2d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2103.03508",
    "kind": "arxiv",
    "version": 1
  }
}