Die Goldenen Zitronen ("The Golden Lemons") are a German punk rock band from Hamburg, formed in 1984. They are considered a forerunner to the "Hamburger Schule" and are noted for their left-wing polit
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 0xe4e78799811bb9da11c8526b5b8c7e503377950196750dc1f39d449c499a1a66. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2d47de9e-48ca-4844-bb27-392fb3d868e9.json and https://artists.proofprofile.net/proofs/artist/2d47de9e-48ca-4844-bb27-392fb3d868e9.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 0x5583f3bbde742f6a84d990cb574510898c5e2bfb4508f7a970733505b4354178. 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/DEE880685020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb987c30ac8580320de6ca50a07d992c4e513b195ee7163006ce5ad09f1bd8ec6. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/DEE880685040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e01f1f7fbc3106224a8fa0c156be6bede5959af3e707fcd05a3650484ad7c97. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/DEE880685060.
Raus aus der Klasse, zurück in die Klasse
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9814c51ea5315d772e45687ad4299672a79515c412c17a10b03ba668f926a6a. 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/DEE880685090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf616a55243cf0b421f3540877b68a5b24cb3c05f1a1020c4624288408ed1e66. Chain 2 (Bitcoin): anchored in block 960240 (2026-07-30T09:57:33Z), 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/DEE880685010.
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 0x98dc601aa85071947a0dd64bf625bb5c03f9575ef6407d99928a617b7706b837. Chain 2 (Bitcoin): anchored in block 960298 (2026-07-30T19:26:00Z), 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/DEE880685030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7a2172729ba481a6e399170f85c161736587d09114d0fc343a2b46d4de538ac. Chain 2 (Bitcoin): anchored in block 960199 (2026-07-30T02:30:29Z), 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/DEE880685050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf786bdd0954004fad010325831f79c2fd634977faf4870b5dbd8f1ebbe9e8f38. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/DEE880685070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51fa3928717169cf5d1cc7b766de70c61580a6d288303e11a665b64a474b077d. Chain 2 (Bitcoin): anchored in block 960153 (2026-07-29T21:57:12Z), 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/DEE880685080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x570cf264739dbb890942b53a402fb8ae8dabc87af8aa244ebefc555ea11cbcab. 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/DEE880685100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd70a5b8dc7bcaa7489f5e4659aeeb4884ff99798499827f3df8a6f8119dc326. 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/DEE880685110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x160216267e5f67b4139633e76a4ae5c57705103e8918354bad7974a195648a5a. Chain 2 (Bitcoin): anchored in block 960429 (2026-07-31T16:07:24Z), 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/DEE880685120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfca064b1545c0e010174f04c247119f5eae688c326c92ca921c2bfed7919ae7b. Chain 2 (Bitcoin): anchored in block 960309 (2026-07-30T20:35:49Z), 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/DEE880685130.
Dead School Hamburg (Give me a Vollzeitarbeit) [Deluxe Edition]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x891dc9f862194a715f694dd6a1868b135a33e8635822bc412f4338dfd48ef1fb. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/DEE881914094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac36385c768741a08240b57137a9fd3d441ee48fceac92c3df0411e9ff206ed9. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/DEE881914105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c67c9e26a8b2734e040a18e45e44b00f97bd1caa2f1cdc517d9457afa021e09. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/DEE881914098.
Weil wir einverstanden sind - DJ Koze aka Adolf Noise Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0d886d9c2f88d59d2c66773281f2a916f9bdb3301ef25d40d3e9736bf0805ce. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/DEE881914108.