Mother's Cake are an Austrian psychedelic space rock band. History In November 2008 Yves Krismer (guitar, vocals), Benedikt Trenkwalder (Bass) and Jan Haußels (Drums) met first to jam in Arzl im Pi
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9a95392df204452de87f8f78c25b91ad595d03f8b8b3bac3e8ab4505cd9eab6. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4163af44-c7f5-41d6-b634-a4714a373a0c.json and https://artists.proofprofile.net/proofs/artist/4163af44-c7f5-41d6-b634-a4714a373a0c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedc110d8ce8eae21456cd8f811ba52ecf1385dd7a1b801f52f512f6b5bb5f2c4. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-16T01:27:36Z), 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/ATGA40106122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5bd3b007ef7aadd2dc0db1becc2d66af6266bf420c29055fcb3f7e596d75731. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/ATGA40106125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ed83f12e2b3de460007caeee5172ec0d04e0675312f3f65bdd4f904fc84f084. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), 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/ATGA40106126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6e63fee3184b21b4bb838e468480c9a0d8a183f6c44061f53ee0e004bc0cfdd. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/ATGA40106127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd77547a769ba2b46db1e02a05104706fc5932a0de4d630b6cfc9b734790a95b0. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T23:09:10Z), 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/ATGA40106128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e92ec08152502b7a5878c735bfc5480d5f4fa5b727f5e5a86d96aa93fad96c8. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/ATGA40106129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d923c4ee1d7a739a3eb29f297d8c95f9a9bc86a341398b0befd40736563dd59. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/ATGA40106130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8029b40c7ed1ee06377d1a77087b556be1d2285061846ccc5b232570dcf8b715. Chain 2 (Bitcoin): anchored in block 958251 (2026-07-16T06:29:25Z), 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/ATGA40106131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff8cab739fbd172d9204d38ea4b588f368c4e4cb7651e9f16c636eb75a3af5ee. Chain 2 (Bitcoin): anchored in block 958802 (2026-07-20T01:04:02Z), 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/ATGA40106132.
Off The Beaten Track - Live at Propolis 2014
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfddd9c242850d48180ebeeb0f28e483002d31a2757e5a9bd6aa525d8e014c59. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/ATGA41420201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7cb40938dcf32fef4c6f322197462df8a26e970037da8ef92a57acb9610f11f. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T16:27:02Z), 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/ATGA41420204.
Off The Beaten Track (Live at Propolis 2014)
Off the Beaten Track (Live at Propolis 2014)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe00eb4898559737185a2eb5dc58a76d58708b445566412a7cd1fcdd74953f33d. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/ATGA43003152.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8b4e8c09dc8c1cd724df8cd7458955f34d6f555b55aa7100dbd68be7b9a2431. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T11:30:04Z), 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/ATGA43003154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae3fbef4ae74dbc87afc214cad2366d953f1a0b79cfaa9918c5ef41d1f65e171. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), 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/ATGA43003155.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60655c45456612271330752fbf84c5d3a3ae4bf4628cae245902671651a0cba0. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/ATGA43003156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6dffdba27957ea82a5cd4296dbaca4ff5b903670cfb985d01aa41fcba33cb72. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/DEU241605910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38728e6be096c4587018278da78e9a2ad75763bb17d6d6991ea6cd841c05d60d. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/DEU241605912.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda75ee20a62983b0b6cc1113ce127ff15bf7a1d6ed45f7b88b803aacb1d6e596. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/DEU241605915.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f2f23be8955b6ef257fa3f7b1c3058241e8052464e17f8e56d2057534600930. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/DEU241605917.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e06a4ebd7cb38844aa630748776b18eb39c45e0a057d274a0c1ce3c98c5e8ed. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T02:16:34Z), 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/DEU242000745.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6508becf1f8143da87da271a236dc0b52aeda070cfe1ccaf75384b110d29e4a9. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-16T00:41:45Z), 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/DEU242000747.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x627744062b64f3ac032f619a6c2480873bed5a0d1f024950548e3bfd2d6781e8. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T02:42:38Z), 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/DEU242000750.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb578abfeff8eb337359f1eef986e1cb2cc7d600ea07ab8458204522fc074bab. Chain 2 (Bitcoin): anchored in block 958376 (2026-07-17T06:41:00Z), 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/DEU242000751.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe397d31a14164db23a516b1a82fb9c4af08dcdaf51e7f2f44e03681c257be2c9. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T03:50:22Z), 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/DEU242000752.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87e13ff16682c63172c47f6931948a2ad516489a80c7cc3dd852a0fa125999b2. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/DETO32400296.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe626e26411cb9d2bc29ac9be9e668193719ab55443845498954e2f4682e611f6. Chain 2 (Bitcoin): anchored in block 958121 (2026-07-15T08:02:12Z), 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/DETO32400298.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc88db68083c445bab682954c12c21def518ebeaddba4d4f7c083bc192129e45a. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T14:38:07Z), 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/DETO32400300.