Ciro Santilli @cirosantilli 37

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Hash table Updated 2025-07-16

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Learning rate Updated 2025-07-16

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Liquidity Updated 2025-07-16

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West Midlands (county) Updated 2025-07-16

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CTE insert values Updated 2025-07-16

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Useful for testing: stackoverflow.com/questions/21819183/how-to-use-ctes-with-update-delete-on-sqlite

sqlite3 :memory: 'WITH t (i, j) AS (VALUES (1, -1), (2, -2)) SELECT * FROM t'

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Gottesman-Knill theorem Updated 2025-07-16

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Greater London Updated 2025-07-16

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List of continents Updated 2025-07-16

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Continental drift Updated 2025-08-08

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Video 1.

How Plate Tectonics was Discovered (1970)

Source. Produced by Simon Campbell-Jones

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Research group of the Department of Engineering science of the University of Oxford Updated 2025-07-16

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Stanford Smallville Updated 2025-07-16

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github.com/joonspk-research/generative_agents

Published as: arxiv.org/pdf/2304.03442.pdf Generative Agents: Interactive Simulacra of Human Behavior by Park et al.

Video 1.

AI Agents Behaving Like Humans by Prompt Engineering (2023)

Source.

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Cool data embedded in the Bitcoin blockchain / cryptograffiti.info Updated 2025-07-16

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cryptograffiti.info

github.com/1Hyena/cryptograffiti

twitter.com/cryptograffiti (marked as joined March 2014)

Bitcoin blockchain image indexer and uploader. Uses fake P2PKH address.

At some point it stopped using Bitcoin mainline and moved to Bitcoin Cash instead: www.newsbtc.com/news/bitcoin/cryptograffiti-rejects-bitcoin-core-bch-now-available-payment-method/ and therefore became useless. Existing indexes seem to have been broken as well.

Also, based on the timing of Figure "Erich Erstu", this service may be responsible for a large part of the raw JPEG images present in the blockchain from block 416527 (2016) onwards. This is also suggested by the comments at Figure "Tank Man".

A Quantitative Analysis of the Impact of Arbitrary Blockchain Content on Bitcoin gives the interesting insight that all its transactions seem to return change/fees to one or two given addresses, thus making it very easy to list all their uploads if they were consistent! So all we need are some starting points, which we have mostly due to ASCII mentions of the site on known inscriptions, all of which have a few common spent addresses at the very end:

4c903a377addab7c1e35a685d3dabc664199e406374b1e5ce2fc59e78fb5b754: 1MVpQJA7FtcDrwKC6zATkZvZcxqma4JixS
87aad85c6cd75a516789f364637d243c668e3424d031ae510e43c6edfe6ed206: 1MVpQJA7FtcDrwKC6zATkZvZcxqma4JixS
c206e8fff656f07b27dac831ef9b956792bae4e76a2cb43f14f49f0298bf2c2f: 1MVpQJA7FtcDrwKC6zATkZvZcxqma4JixS
ca4f11131eca6b4d61daf707a470cfccd1ef3d80a6f8b70f1f07616b451ca64e: 1MVpQJA7FtcDrwKC6zATkZvZcxqma4JixS

so we just have to solve get all Bitcoin transactions from and to a given address and we are done. Blockchair shows about 800 entries as of February 2024, between 4f94f97eb156b8563a213bb292314a0bd9c95b39afc521fc5965d050daab2a78 (2014-03-02) and ac5f4ea03597b43a72fb8ab42bd5384629f87f4f4abc534f38b8c15148ccaf9f (2017-10-12): blockchair.com/bitcoin/outputs?s=time(desc)&q=recipient(1MVpQJA7FtcDrwKC6zATkZvZcxqma4JixS)

Other related transactions:

tx 87aad85c6cd75a516789f364637d243c668e3424d031ae510e43c6edfe6ed206 block 474652 (2017-07-07) via cryptograffiti.info the default pandoc markdown pandoc.org/try markdown tutorial string! First, unseen in our ASCII dumps due to UTF-8 encoding::
```
Unicode test: `Ä Ö Õ Ü ä ö õ ü`.
```
followed by:
```
An h1 header
============

Paragraphs are separated by a blank line.
```
And if ends with:
```
Uploaded from http://cryptograffiti.info to demonstrate Markdown rendering.
```