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 0x3bdfbbca9ccec622b9a301e437b0123c4e232ae46d4e8fec6add0d2fe001d8ec. 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/f8aa7051-a9bc-4bb9-96c6-25053873ba64.json and https://artists.proofprofile.net/proofs/artist/f8aa7051-a9bc-4bb9-96c6-25053873ba64.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 0xd3ae54d77fae75d1d2ee7b69f80a70ab6c8871cfe0bae4e71cc1400f049b42d9. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/EGA252307089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87cd610893d5af4fb0c830dd423238d90d5de9ebfd5632deeca45f23ec001df1. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/DGA052308427.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf0c9ea783246ec9499f01e8b1d79d1ee87feafefff41ac6893df241a1074882. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T02:46:47Z), 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/EGA252311435.
مطاريش مش بنجيب راجع (مهرجان - مطاريش مش بنجيب راجع - ميسو ميسره - اسلام كابونجا - توزيع فيجو الدخلاوي - مهرجانات)
مطاريش مش بنجيب راجع - مهرجان - مطاريش مش بنجيب راجع - ميسو ميسره - اسلام كابونجا - توزيع فيجو الدخلاوي - مهرجانات
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68c93f9395229c7a7c9232c6f6af5e678e48020cc768d54eac41d3bc99a40429. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/FR59R2454091.
قلبي جايبني ع الش (مهرجان - قلبي جايبني ع الشر - اسلام كابونجا - ميسو ميسره - توزيع فيجو الدخلاوي)
قلبي جايبني ع الش - مهرجان - قلبي جايبني ع الشر - اسلام كابونجا - ميسو ميسره - توزيع فيجو الدخلاوي
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab9b08e81585b1630e7f6f2385545fdef8fccf2db4b3e486268a15f5157b8728. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T14:57:46Z), 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/FR59R2460779.
دبابه في اي حكايه (مهرجان - دبابه في اي حكايه - ميسو ميسره - اسلام كابونجا - توزيع فيجو الدخلاوي - مهرجانات)
دبابه في اي حكايه - مهرجان - دبابه في اي حكايه - ميسو ميسره - اسلام كابونجا - توزيع فيجو الدخلاوي - مهرجانات
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8b61b403090b72a8efa29a9ffec4ff4908e1ae0e3654e1b37bf52477b8272fd. Chain 2 (Bitcoin): anchored in block 958329 (2026-07-16T21:48:38Z), 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/FR59R2471935.
طب هأ دي حبيبتك مش بتقول لا (مهرجان - طب هأ دي حبيبتك مش بتقول لا - اسلام كابونجا -ميسو ميسره -توزيع فيجو الدخلاوي مهرجانات)
كاسر عين الخصم (مهرجان - كاسر عين الخصم - ميسو ميسره - اسلام كابونجا - توزيع فيجو الدخلاوي - مهرجانات)
كاسر عين الخصم - مهرجان - كاسر عين الخصم - ميسو ميسره - اسلام كابونجا - توزيع فيجو الدخلاوي - مهرجانات
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8472adfea008a313266861a3c6fd7faa662c34ba18004d6f7d418b24de96060. Chain 2 (Bitcoin): anchored in block 958380 (2026-07-17T07:07:02Z), 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/FR59R2495347.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65b2cc3d4a2c0e4ceca535d9e9240a7ee24d0dcea7d714d2c0e2545d5c2a4d9d. Chain 2 (Bitcoin): anchored in block 958975 (2026-07-21T06:12:52Z), 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/FRX452438161.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99789d3c8f277d2c063a4846e4efaef5ef9cd9bba762725c4f9b55d704ea7c97. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/EGA252411624.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaff80154c0829ffbe66dd4448bea2ffe5a1bb06f07579d4e304ed7016f6701c4. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/DGA0S2451020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b392a1f99c0f88f5ef49d9b1110e8b12e0e72d5968bf848ce424c1fb4865b67. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/FR96X2554452.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa6a70c8e0341ca8384b165e25d92b9394195629b4e55ceb928bec5f79da9137. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/EGA252504904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0aef441768af7cb048a38a551955cb976d6de246ecad7451f9112cbb22fdf058. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/USUYG1729788.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5cdf60083468ac81f69fb6ffddd6c905c83fe37447ad082ee7d3232f2005b45. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QZWDW2545183.
السافلين والفاجرين - عمر السكينة ما كانت سرقانا
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab855086b8af8c39e8321c93e5871d06c0245e74ecb91641e3ae700ba63053f2. Chain 2 (Bitcoin): anchored in block 958880 (2026-07-20T12:33:53Z), 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/QZWDW2550230.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77e3ca250efb2133a9969673ec37a4755d4d796acde156f35fed022d64592b14. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/QZYFZ2509880.