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 0x1f2f38472d1f14e1c5bb78131ef27c6168230afe8f9a946e4dbfafa462f5da97. 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/4103ff77-aa84-4322-a145-e1af4e2d37b7.json and https://artists.proofprofile.net/proofs/artist/4103ff77-aa84-4322-a145-e1af4e2d37b7.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 0xaff3070717d8d650290df8d1006ea086bc981fbb20170ac1ab365ad094cefd1a. 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/DEZ921500537.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f4d38bf682d632a9d3a29057ec8ae562cadd18f9b1e2838c7d8e30215e0cde7. 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/DEEQ81000015.
Partyhitmix 2009 (inkl. Oh Tequila, Wir lieben es stürmisch, Kalinka)
Partyhitmix: Oh Tequila / Wir lieben es stürmisch /Kalinka
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a577a8d6c16ae38acfd2e38e2996bbc9f917be943472f1f6b46a8297d0bbc04. Chain 2 (Bitcoin): anchored in block 959163 (2026-07-22T20:49:06Z), 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/DEZ600902611.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa618aba154e7c4cdcec26f35100586d1b79fc0c3c7bf8064d0bcdfca34959f6c. 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/DEZ600800887.
Schlager Party 2016 - 70 Schlager Hits, Pop Schlager, Dance Schlager und Discofox Hits
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40388da313ea12da4673e96019967037bc929f22144933535ab24f7d86e292d1. 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/DEEQ81600036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19dead2e967a5a156b59bc0e5f425e122751efb663418a1ee8510109e86240cc. 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/DEEQ81600032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c4272d4dcaaf57af4a5aba483802ebbb15e334e6b932a7a00220c8d8f6b816d. 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/DEZ921400144.
Ballermann Arena Hits 2021 - Fussball Party
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7befd0b5265303f6d267be05ce4d5afc10f0c4c1d89e9b145873c3e62a3fd076. 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/DEYQ92000031.
Ballermann Wiesn Hits - Oktoberfest 2020
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8584f8ce311e62a8fac241738b6159eb33983e7e26fe72e06970bb1fc4da818c. 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/DEK262005301.
Wir fahren bis nach Polen (Und wir werden Europameister)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bacde8887f3fe949369eaad646881ab9367cddba9cfe4038dd7565428156652. 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/DEEQ81000060.
Der ganze Bus muss Pipi (Wir fahren nach St. Anton)
Der ganze Bus muss Pipi - Wir fahren nach St. Anton
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf3e17e7687da4137cce7445702d1cd186eb78cdc6ac72fcebb70f3d6209248e. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/DEEQ80900138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x362383825376074fad84dfc5093754cb5729928212978e3821cd34babb00e05d. 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/DEEQ80900024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6ffcacb5f6ec5e06f77689dd8967d2964cf8e39eb9921b2ec9ce13ab2153933. 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/DEA490851160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e3219658aebc09f1677676fa4c52b68f71784dfbedf1182be25536f32552b6a. 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/DEA490749540.
Deutschland ist der geilste Club der Welt
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2764c917d35ab364394299a17e1ba7e89e2207771a5a7486636b22bac5540e82. 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/DEA490542870.