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 0xed07db1c3548e7713f8a82ee6493e42d8060a2373937ec6b8c15d4fa642f39fc. Chain 2 (Bitcoin): anchored in block 954533 (2026-06-20T08:57:02Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a2d9aa21-d0db-44c2-9fb0-a36ea00ec8f7.json and https://artists.proofprofile.net/proofs/artist/a2d9aa21-d0db-44c2-9fb0-a36ea00ec8f7.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 0xa396d59f8517c855e6b5a0bf311212de0ad4f8183cb6f14a28ffecd38b39b422. 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/ES8741400801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e99d70e391d8d2cc95acc8d2098a4892dbdb82e55e134798886759f74621d09. 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/ES8741400802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1299094340227861fdc1d2e27e54dea5b4dde29b287c300f7ce1f33d71c8b6fe. 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/ES8741400803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7bfa223acf96462a587af8960c27db7b657cdbd908f03be6e1046110d50d4c2. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/ES8741400804.
Live in the Summer - Shake the Dog After Sun Reprise
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f4328d17952dcdeddffa357cb5a512df7c1334522c1a184526968a78e4e6874. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/ES8741400805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4627fa751fb3827ede9c00a92c9ea7cf203221b90848f12b86e3fcb27f6f839. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/GBDEX1400386.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8dd0a52274e0deceb34fdc869de36ab38492db2f717278e79c1a3bb498fd9a4d. 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/ES8741400806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95aaae221ad59c2343c31350f7add5e3e971a0cca98561f41a9cf3fd02e3e0de. 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/ES8741400807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x206f6fa187808e7460f7bc080902fa1c5fe79b2003437ef856c83ca3f098ce58. 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/ES8741400808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bd80f6c2bc9583b65986d9a617f66296a259e916be882a63021612f4a91c8ec. 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/ES8741400810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd17a5400c2e7ee45a3924d204054e698ec278ff62d1d497945864a28d91c17df. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/ES8741400811.
Sweet Dream - Leo Mas & Fabrice On Air Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91ef0f410a60b3b9e857245dc17804209636e3d7bbcd77c6a485badebdfb030d. 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/ES8741400812.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x477fc25e79da38ece23d119e1feac466bc0345d3180cc4f6ecf971feca0cd361. 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/DEC158600038.
Destination Clubbing Croatia (Summer 2017)