The Alley Cats may refer to: The Yale Alley Cats, an all-male a cappella singing group from Yale University founded in 1943 The Alley Cats (1960s group), a 1960s musical group The Alley Cats (doo-
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e2040822637c1c87d568eaa926c2ffb3cca2cefbd3d30a79ba08449d0d4f1f9. Chain 2 (Bitcoin): anchored in block 953697 (2026-06-14T21:49:28Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/71f93b10-9d54-4271-802b-42ea2b2c7c3c.json and https://artists.proofprofile.net/proofs/artist/71f93b10-9d54-4271-802b-42ea2b2c7c3c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Dangerhouse Complete Singles Collected 1977-1979
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x389c9cc53962572d23c83b2218403097983f53e56d905170c68c97dccd8828b6. Chain 2 (Bitcoin): anchored in block 960300 (2026-07-30T19:42:40Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USA6P1500025.
Johnny Powers & Friends - Michigan Rockers
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ba88520a6fff3f02a330680af31128119fae1b826fb744faeba7dd0246b5bf5. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6MZ1411385.
Jon Savage Presents Black Hole - Californian Punk 1977-80
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x510671b34f026687db4f5dbb3254997073b62ba57017c0c479857539eef6abcf. Chain 2 (Bitcoin): anchored in block 957011 (2026-07-07T08:25:35Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USA6P0499064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x510671b34f026687db4f5dbb3254997073b62ba57017c0c479857539eef6abcf. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USA6P0499064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6f0f8d5f08ebddf433cecb4054fc4698398dcb495c5b2c6348a4abbb491bcd1. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USA6P1500049.
Dangerhouse Volume 2: Give Me a Little Pain!
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05f14c612b2e9dbbaf3e800494776fe8679266dbee7519eedf0777ac472fe0d5. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USA6P0405001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2be54b877bdcc3b6a4600da4642ae386b5a9612dd65b652550cc163cd97565e3. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USA6P0405002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e50573888d471c3b02b77bc66c0f21509329c0e0ddc9b40ae6fdd2a09c49f02. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USQX91000372.