thumb|Moroccan singer Hindi Zahra at Pause Guitare, in July, 2015. Hindi Zahra (Tamazight: ⵀⵉⵏⴷⵉ ⵣⴰⵀⵕⴰ, Arabic: هندي زهرة, born 20 January 1979 in Khouribga, Morocco) is a Moroccan singer.https://www
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 0xa78abc917fbeed2bf82135b51af56083e803c001dcd097262a412d392edf891e. 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/13ee3668-cabc-43e9-a2f9-2eaffae9acd6.json and https://artists.proofprofile.net/proofs/artist/13ee3668-cabc-43e9-a2f9-2eaffae9acd6.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 0x6d7b2e576d470d1c6102794d65409ac123d9882fd09d5254267c5534f00f50cf. 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/FR9W10907796.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54de90adc796ce8592f5665478a2f06fe6caa04c2b2339344f26b6a7335fb024. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/FR9W10907803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb437846dbcd5daad52e47475eab849581e260c71949fb167835b02641cd3946f. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T18:18:21Z), 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/FR9W10907805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3e4719c41f292b34344936e329dc7350d9e68485a2dc89c39319875a1089175. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/FR9W10907806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5890ae6e7d205be5d129be93f4cc4797ad20ea8d673734f65919f9234b565b0. Chain 2 (Bitcoin): anchored in block 957751 (2026-07-12T20:41:42Z), 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/FR9W10907801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8d7fc06c20f2bf64d3c74bc29e3154cd31cb2d91e84f4d39bb2535813405be3. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/FR9W10907804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f37844312c1384edd1f38a656bbbde1a686d31e9f804615612078b8c163c7a0. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/FR9W11102834.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d7b2e576d470d1c6102794d65409ac123d9882fd09d5254267c5534f00f50cf. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/FR9W10907796.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73e768fbd5c30502fce82c878dfeeb104a3c874892b110f92bcf9c719cec8878. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/FR9W10907800.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8d7fc06c20f2bf64d3c74bc29e3154cd31cb2d91e84f4d39bb2535813405be3. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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/FR9W10907804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x569928836837c81441c18315e84d6004923a04ee56d443a9522e8ad0a64af133. 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/FR9W11102789.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ae10d224ecf8d0ddfdcd855eea33d1dabb16cf9ea11f585efab9dee3b0af551. Chain 2 (Bitcoin): anchored in block 958216 (2026-07-16T00:00:34Z), 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/FR9W11501811.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1d719f0d139ccbf4daa4463c02fd0dd0e7d2221712358a161026b249092362a. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T16:02:01Z), 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/FR9W11501813.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6adb52bb8e0fdcc30a5f1fa34dd9131635f281e0036c2eb8c6289912c7e2b923. Chain 2 (Bitcoin): anchored in block 958552 (2026-07-18T13:15:29Z), 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/FR9W11501814.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4751d66d79cfcb41d453e12e6f7bad2a144749755bda26f7c72a8f250c608670. Chain 2 (Bitcoin): anchored in block 958802 (2026-07-20T03:07:13Z), 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/FR9W11501819.
Barbara / Arr Tharaud: Say, when will you return? (Dis, quand reviendras tu ?) [Arr. Tharaud for Cello & Piano]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd6e87b9e0a2b6709615fab940568cc14d592743252d77fe046b5497232914ef. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/GBAYC1702472.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c350d5e2d4c9ade2ba6e8026ab192a144cd3e9b4a5618a4eef775d10628d021. 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/FR4EO2000121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd492f41fff1aa000311049c5b13c00b35d79a12d40061a4c9e450a6f7c21fafb. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/FR4EO2100020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x086ea3dfe327bb9ca8758c05933974e9c3c731ecd633a2ab237becd4727c2c8f. 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/FR4EO2000064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96257a14d6466f0143be6168e0ae1c79dafbda32a05efe07e869e5a6b9858a62. 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/FR4EO2000070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdda72120df5a0a936cb3cbb4e67be1f72fc751fefc5e784fd4afd6bba04c0db. 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/FR4EO1000004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd222d06f7db2717054472dfd638ec92331a1507ed6d79103201a339976251c73. 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/FR9W11002039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96257a14d6466f0143be6168e0ae1c79dafbda32a05efe07e869e5a6b9858a62. 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/FR4EO2000070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x878a64b0c6674624bd8cd76702328973d655e76b94368f0f938352d8c632a0ad. 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/ITFA71600055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17cf6ba468dbba97c4e224ade05c3e574c34f9e0b88c7f8a9a82b7f2bfb282d3. 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/FRUM71402274.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x307180b97679acad704b98818ee3a69c871bcaa10285f173de20f053c9643c16. 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/USBN21200099.