1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x0c6a440954bd0f636acef3900584606bb44b406418e37c542911cc9abd6c63d9. Chain 2 (Bitcoin): anchored in block 954588 (2026-06-20T19:15:05Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b8876704-0498-494c-a05b-a9bb9091c557.json and https://artists.proofprofile.net/proofs/artist/b8876704-0498-494c-a05b-a9bb9091c557.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 → block OTSBitcoinBlock must exist at that height 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 0x487badc5a5af3b504a92a123f04de6da77ca510671d8ae1befd16192cd649f6d. 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/DECM10600703.
Nur einmal jung (feat. David Posor) [DJ Düse feat. Bententainer & Ratzke Remix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffe89e6d532a17752f2b47d24853523e5f26b503e36cbff1c48f1bdd8c3061b6. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/DEPI81700065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf04612314398c8250416c88c2b76f5cdacb8cb2374ce389753502936e3206dba. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/DEUM70903629.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95f89966fab39b8b3e8e5da1949db7b517aa71b66049b7f7afade354ec19a437. 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/DEUM70904961.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5ec243fdb91766199fb1eace40a36806bb9e4ab7935ffc52a6346fa8fd96806. 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/DEUM70905626.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15c5e7391ed5465ca45978d2c2f9d82db609180bc9e0ae92c8c5cf21078f94a6. 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/DEUM70904963.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c96dc220e81e8968d41bba9626e4af26d21d7ee0968454e6ec49ecb6f61df58. 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/DEUM70803269.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51601f935a20c7f7a532f75db7fecf018aadc0865ac25ea5aa77a5d3c5f314de. 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/DEUM70906162.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53d12803e18e134dde0fecd7101beb2bda81489aeb713a7a11b0ae0f96805823. 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/ATI210801607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e705c181c759b5ec28eb71c0af37a4ddf8d630f4dffc5304ffdda30cbf6b146. 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/ATI210801611.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fce53125785bc01ddc3612986bd4a89f7986764fa92a672ccd017e7c5cb6622. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/DEBL60605042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x513c65740eaa5d2268c0e17d743beabb2144aac462d05ee6c714cfca42b371ef. 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/DEZ650512714.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3b7e5486d5c379b5d047db2727f3242dd6d1cb64e92ab588e28372a1f837e91. 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/DEZ650512718.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf220ab020aa3b0673550ce9e1f042f9d00b90b6e17db769f63d0f1255a6e5f9. 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/DEZ650512720.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe05e1596e2ce843b20b04a987194513be7e1fa43bd7651a36dcd5a8f9ad19243. 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/DEZ650512721.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4350aa8a0158ab6cecf77841c85f82c1ac9233f124393cd2ace2c07657a2fa81. 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/DEZ650512723.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1db8422cad8ff352e9aad5552f0dcac88909dbeae3fd46ac3ea99ffc1fb58e41. 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/DEZ650512725.
Spring Break Party 2018 Powered by Xtreme Sound
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9dfbe68611b14c56b5383ea575aeae62147bfdeada3f6b271e5561899c9ee3f. 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/DEEQ81800005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2881a9ef7b420a9053dc867bff34d2b671e216dcaf07221b3edb5e90cfdc9e01. 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/DEEQ81700023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9035eabb64c3e642f2864706258043fb8304c11d8f5d1d1ed6dd94531bf230ef. 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/DEEQ81800013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc19d9be3734fbbf8be7f0df9afe0250b2e7521a0f1d4dbf7a8db340b55bc2c96. 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/DEEQ81700135.
Xmas Auf Mallorca 2017 Powered by Xtreme Sound
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb786517f59941e6bfa404ee4318168c813d02e4956669a3a8c5ca47f301a8762. 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/DEEQ81700134.
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