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 0x5ceea4e8d83e6d0cef9764bc806d0b7dc83becab07095288d335fdd4cc4ecd66. 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/f762f2b0-e52a-4d6b-a1fb-da2ce43247c2.json and https://artists.proofprofile.net/proofs/artist/f762f2b0-e52a-4d6b-a1fb-da2ce43247c2.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 0xbef9abc03db1abcecc371acfe2ef42003aa439728c8510816ddc0e6f1a9708ee. 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/QM4TW2164884.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0254117fe521fdfa994d03e12a62c49b53c49704efad15f92afbaa4b50577d87. 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/NLT2H2300979.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d399d3007a4baf54dbae3a488c678d0387f19b44748f3a823d3789236180af3. 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/NLT2H2300214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4864a61e924bdeb353c50b3be95ac8bc9df4da6388e8c5b54c2a227b332119cb. 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/NLT2H2300190.
Disturbia (Hardstyle Remix) [feat. Stella Key]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94570962f023a178fe973bf072fbb02ea73bc7e9d643ebba982af4a25cecee9f. 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/CAQOI2200082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe405af88e549598524ccec04a664870b79a592f7c2123efc6a859a90af72813. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QZFZ72193702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc399afa2e15b1f0e5d05552b2d1e80f579aae5d53b971a2863572ae25d4c43a0. 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/DEHK92002871.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65ecc137424299f31b46e711da74a6b2fb07dcea315792daf55ce46bf21875d8. 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/CH7812421711.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19948082724ea80dde25b916767da9810308aa597704d0ce74319715b7110585. 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/CH7812421305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef95b8c45c95cf55dba7d70dda9be2e372f0490c8ed6ab33a928ead57c424eb9. 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/DEW872405527.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a0d56791b7236bf2f9f1b90281e077cf7ebdfba3491eff4a435e3594f01fb75. 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/UKZGC2406386.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x212a136f3f9022774869a33435a8c7eb05ee92f38820e0c8141ae7c6cddaeb5a. 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/CAQOI2405528.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1bbb6256e0d128ac51902a028d80a4812cfcf94b96ddb47b6a469ffcb38f2df. 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/FRX452403923.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x435336c0e781b8aefad6a2b497fad4b9d65f8f79fe01bbeb539bb9c072f8f694. 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/NLDD62300058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa2ec88e3528ef693122ea4f7642b03c614eb1cc93052e9df99e88765839d23f. 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/CH7812530100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08882c3044eca35da7fe4c3a87b4ef959da49d289ce38ebd6fe7599c554adbc2. 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/CH7812529486.