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 0xc092fc6ab4d0a4bebb283cd3882d1625d214f2a6ed28320f40bc465a61858e68. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/548deafc-622a-43df-a696-abe63ece0ab2.json and https://artists.proofprofile.net/proofs/artist/548deafc-622a-43df-a696-abe63ece0ab2.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 0x5c90bd83a345026b5ead4203299ebba7b4303bc06319fb6b36bbef4166683010. 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/BRVYI2300007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e109fcaf54907dcfa1d2a7b2bfb2a4ec47f32ff127c1afcfa2a7ebd104c2a99. 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/QZYFQ2300003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa188b392372a4d367892ad4bed3ec0c9f202e95dd31bd950b38b4e094e1164f2. 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/US6QR2400015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf54237ae44fd912bba5d9b7b408d50213ba4fff62eb2d153e996894691f07886. 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/US6QR2400016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94200daf273b8510d7fa4d3a3440d7ac61c470cdc22c5b5463cafdb1ad16b8e7. 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/CA1TA2200013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ed9592295654dd0a5e9ffc0da8c08d5d22eb1df723ed8d4575b90801fd26dd8. 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/US6QR2400017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6c13d830fab7a695dd17569ce37c005d9119106257ec61ba38f1e8d45e187ad. 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/US6QR2400018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a7a0b52e502539e6736923cdd78f4bb0dda14f516c428505041693a67f4c01b. 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/US6QR2400019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9144f38bca54eff5956726d4613c4f19717c4487ad0236a3016d9fafea6a0fbd. 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/US6QR2400014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d0e379f03f6fa6a026bc80285a0ccc244769a55a9a9d6141e4f7918b51b6aaf. 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/US6QR2400020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf2807db1766420d7a00bdddff506185093b7176b4f367191866724cef1a6c8f. 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/FRX201803142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a0462f3a7b7bc0e7a1e78c1ee0e7f497b86e5b54a70d5e645937bde5955e340. 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/FRX871514956.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9862cd72f1316d7501d4555e2dd9924d2bb341b2b4c068a9f68aeb6e726ef940. 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/FR2X41533767.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4ab0863d0bab01c58914786ae4a39e244d30e3653b9c6d9dec7085a5a0e143f. 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/FR2X41533769.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf10eed9c8a58cc6ed218ba71eb7b0f7ad8fa96e4265dc0780ff6746f615a0f8b. Chain 2 (Bitcoin): anchored in block 957012 (2026-07-07T08:27:05Z), 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/FR2X41533770.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ac07255f5deee1f388b02dcac9b8e7b09f45979967b8e3fa452c3836897fd9c. 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/FR2X41533772.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8817ecb08446757402c4158301d875f1523631ee75a8188d38dbe8423cf610c6. 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/FR2X41533776.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02a140fea7e3b499652731ae2c59148f15e42652e86ca4b5d227b44b21734e97. 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/FR82S1900023.
Yolelio "Je suis chez moi" - radio club mix