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 0x06a47c673082268d4b6769753146e19728def3f86f7d9be83aef7a94b76d42da. 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/02687ff0-5662-401b-b6a7-bae7bb7407c1.json and https://artists.proofprofile.net/proofs/artist/02687ff0-5662-401b-b6a7-bae7bb7407c1.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 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 0x22c25c4416d4d278809b47913dca91dbd241900b7a3ba5bf3689477f401ec0ac. 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/DESH42300002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b458a81c75925759c09484f6449f2200ce043520649f6f236b2afa586aff88d. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/DESH42300004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d1b09939c81fd618f122cb828fbf23f50cdf329194945ce10504c25c5ad6aee. 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/DESH42300007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44ef0bdb41f5f6d97f11710fa4570484c4d03de670ce3a84fb706f6062bea286. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/DESH42300009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9028ec550066c330de1e61e4ee8836d4ef6df4ce76b3889a16e9d1a6df7dd552. 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/DESH42300010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x774c8d0fc4ec8024aa4b4bab7f3be3dcc3ee40e239f802b99670103ac1323c41. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/DESH42200139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e22fb953a89521c8003b6f21752e18ea646d6259b3936b750afae73eaeeb42b. 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/DESH41920012.
We Are Katermukke: Dirty Doering, Pt. 3 (DJ Mix)
We Are Katermukke: Dirty Doering, Pt. 2 (DJ Mix)
We Are Katermukke: Dirty Doering (DJ Mix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7607babe46c6720f0d59cb923e901849b2b228f374460a37ca67c8a5ca6fc5f. 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/DESH41900514.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd16dbe8f0fda2dc4f161db36602c86b567ad57ca6952033c4892757fa9a37ea3. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T17:44:56Z), 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/DESH42210014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x150f924b183d57ef7c6f55109843a59f5c209c926019beda7624d25d761ec408. 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/DESH41800372.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28738db3b15821910b640db89bae877b13bc83307838c1b54f03e76bb301c645. 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/DESH41800373.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48b37e1b26057bcd4b1304cfd3dc052db18ddd8b075210083ddf27f10626dab8. 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/DESH41800374.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x974d98ad537504eb254a985d7692bb60a651577110cb81a98d45423bc5c2dd6b. 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/DESH41800375.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae904e1100a5cab0821b185fade67a36608bd76a69e5121ce766ddd24a182100. 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/DESH41800376.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf683402904e0b2b95218f4bc17ba70f4555907b7ef2e2aaeb315b01e587a3ae4. 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/DESH41800377.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09739eb5a1adf74142fc468a7c24d4b52dacb3c859adccd3a55c067b80d03744. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/DESH41800378.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7124623525467ba2cc81c497e035ab0840b06fe37770a83cdbc41c224a197724. 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/DESH41800379.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d40d9f39d6afbcd24837f6d99460e7e923491d6000ae5be21b52563e22ae2c8. 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/DESH41800380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd24029a3ae18f6c134268364da2ab2a0c55ea9ea15323b97791c901654f87468. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/DESH41800381.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x784cd500630e2d4756d35455fc1bd4785cfdc40ae760d484b2c13da72b5e2ce8. 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/DESH41800382.
Es wird wieder gut (Dirty Doering Remix)
Es wird wieder gut - Dirty Doering Remix / Radio Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x298635e8305a7dfe4d34990350aa9bfde222b14a36307e4210b0c34a3d6646cf. 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/DEMP82300002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c0c06260e0853b42cd8464481336d6240e524352f51bb27fe5711a5d078248f. 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/DESH42300053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40326398d0f9dc3c5385e6a5d0bb15049f689fdb35dd7373281e2e4778560cd2. 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/DESH42310031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3e20dd024461c573b801dbc15d3429c1a23b44ce89843bcf6f06b2d80212513. 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/DESH42300051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48f768b9e1d73d95ab403158e479b8136335a7e134c007ca97417f57427fb81b. 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/DESH42100151.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d94e0ec85f45aff2313764b6debe4a0dc0f7d10fb6841533bddf9202a8acb57. 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/DEUE12161768.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ff2ac6db2ece48284231db12f81e3bea7283acec090c6a4eddf0c5b4f2fd45f. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/DESH41920007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x933148a72223eee35158b6988fad33b219222eaba72a1d9438a0863b131cef34. 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/DESH42000161.
Armada Deep House Selection, Vol. 8 (The Finest Deep House Tunes)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4aa22a8e3e0d75cd061c2487afa1740182598e0850ed7a1ad6d76a1f6cf286da. Chain 2 (Bitcoin): anchored in block 959152 (2026-07-22T18:47:51Z), 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/NLF711502506.