Ernst Busch may refer to: Ernst Busch (field marshal) (1885–1945), German field marshal Ernst Busch (actor) (1900–1980), German singer and actor
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 0xc4d2622a2550705a9d338bdca5669270a1a1538f9173b041469c76b988001e72. 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/9e93f3db-0625-4b27-97a2-e968a47164ae.json and https://artists.proofprofile.net/proofs/artist/9e93f3db-0625-4b27-97a2-e968a47164ae.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 0xc66455cd88ebed1c086217e17fda01ca99ffe506a5cddd08bbd0380ad06f4c0b. Chain 2 (Bitcoin): anchored in block 958218 (2026-07-16T00:33:33Z), 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/DES381313013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x767c6edeea799b096481eb0605879f1d81c2574406ab1c9dcca8d0b0775588d5. Chain 2 (Bitcoin): anchored in block 959024 (2026-07-21T16:59:25Z), 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/DES381313014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbce17f1c72c6d070c26474d8e403dc5819db8408dc7e1922e4951b47fce1c682. Chain 2 (Bitcoin): anchored in block 958627 (2026-07-18T23:33:54Z), 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/DES381313018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ad9c4cd14186514411db0423dd0cc22d2c5668cc34037e724c4318b8f52bd78. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:39:31Z), 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/ES5832540050.
Solidaritätslied (Vorwärts Und Nicht Vergessen)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d13af93304d0d8616e97db6b344ea02ae7b286935852d80b45628ec7087af27. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/DEC531048713.
4 Balladen, Op. 22: No. 1. Ballade von den Baumwollpfluckern
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca50e780968ecc8f2a03e30322df1cf421b8edb0d04fabc6c9de5e995b489952. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/DES380010432.
Die Mutter (The Mother), Op. 25: I. Wie die Krahe
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bbf7ac45c50d3a7019365126a1b6f04018a20b1ff426cde19c5af6203147aac. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/DES380010438.
Die Mutter (The Mother), Op. 25: VI. Lob des Lernens
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7f448aa072dcc0582fac5de5850a23cfa80393b7c1b3b362e84a27622d03e48. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/DES380010443.
Kuhle Wampe, Op. 27: No. 1. Solidaritatslied
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x193c98bdc68efd5aeafe851ca643530ea68b10b4d2b397d49488164e8c305fb0. Chain 2 (Bitcoin): anchored in block 959137 (2026-07-22T16:40:13Z), 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/DES380010436.
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
6 Balladen, Op. 18: No. 6. Ballade vom Nigger Jim
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbc4a6fd9f1ea6771aac5061f34b11bba0bd35f617b351e4bd8ea2dcd471fb4c. Chain 2 (Bitcoin): anchored in block 960427 (2026-07-31T15:59:18Z), 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/DES380010431.
Die Mutter (The Mother), Op. 25: III. Der zerrissene Rock
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67b0484deeb72f4de8da345665448c069671ad11ba59e50e7cd8559c19a841cd. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/DES380010440.
Die Mutter (The Mother), Op. 25: VII. Lob eines Revolutionars
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c9c1aef488dd7d44b5ce9c2006705c51bac6732fa9b28bf5805cafdfe16c1c5. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/DES380010444.
Die Mutter (The Mother), Op. 25: VIII. Im Gefangnis zu singen
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf26c61adb8500e3bcb6c7adf4e51876ab7e99449ef3b72fe76a50daf9d508378. Chain 2 (Bitcoin): anchored in block 960302 (2026-07-30T20:09:33Z), 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/DES380010445.
Die Mutter (The Mother), Op. 25: XII. Steh auf! (Die Partei ist in Gefahr)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc444b7c59cfd90a287249a7ad8a507f25f7bc5cf9c2681d30b1d79557b5b27c. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/DES380010449.