thumb|right|Akli Yahiatene Akli Yahiatene (born in 1933) is an Amazigh-Kabyle singer, from Algeria. He was born in Aït-Mendes, near Boghni (wilaya of Tizi Ouzou), and emigrated to France in the 1950s,
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 0x90fa541ca5f656440615df65c00c4cfdca1d30f2cc6e1487c9046c7fb2c1e952. 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/d08ff079-597b-41f9-b452-44a4c7b36d37.json and https://artists.proofprofile.net/proofs/artist/d08ff079-597b-41f9-b452-44a4c7b36d37.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 0xac7128871fb38ef3106c57635c5f12fa9897c332b68c4589d010c278a929cccc. Chain 2 (Bitcoin): anchored in block 958058 (2026-07-14T20:20:34Z), 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/FR3M58000170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x579abcbf80e57c02b5b598e9331eb974a66596fb36dd7edffda95fc13befd1b5. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:25:07Z), 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/FR3M58000200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaafa16ca30959695e591073ddb40f64a6bf3da61b19d3a8d4e9ece522c3175b8. Chain 2 (Bitcoin): anchored in block 958959 (2026-07-21T03:51:22Z), 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/FR3M58000210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad4d6c3518c4df536e23fdc7f40074dfecdeada7a53cc7fb79f36f129f59f9c9. Chain 2 (Bitcoin): anchored in block 958111 (2026-07-15T06:58:20Z), 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/FR43D2302753.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7894b1204c7588362ee63d53c6d84867d1fbc2cbc68537c503ba9cdc2549414e. Chain 2 (Bitcoin): anchored in block 957788 (2026-07-13T02:37:37Z), 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/FR43D2302754.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59c045d82b5ce29779e71ada2dd38eb85571d450bd8da326c2fd36336819865b. Chain 2 (Bitcoin): anchored in block 958251 (2026-07-16T06:29:25Z), 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/FR43D2302756.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89a9502c58a0688b17df1d497ae55d56126354c4f747b3c2dde03941073e177e. Chain 2 (Bitcoin): anchored in block 959094 (2026-07-22T05:37:49Z), 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/FR43D2302757.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7b8b9bfe218210c994e9504a5b93d0b4da5779ad6bb93ac50a5c3d7c26da28f. Chain 2 (Bitcoin): anchored in block 957782 (2026-07-13T00:52:48Z), 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/FR43D2302758.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa96861f52b807820a6f5b1d4d545e31389acaa3295976723145eb76ad42fe4c5. Chain 2 (Bitcoin): anchored in block 958251 (2026-07-16T06:29:25Z), 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/FR43D2302771.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4618b3632dfbce77345eb7cebc406e9ed6b5450b2a1c5908baf02ac239f3baa4. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/FR43D2302772.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x845b719ac8e4d2e72f4c7f8c379ba5fd67afcf24dedd74d81aa8ad0ef2b90f4f. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/FR43D2302773.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9af588122eb23fa1ac514656a752330d8dd13b07a9307e4743e2bade5f250a38. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T22:22:49Z), 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/FR43D2302774.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7acc8232be1611f91c3fc8a72ecca4684eb8b459c1a8bf7c9e499aa7a714166. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/FR43D2302777.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70929ab058e0c254a788b3fa1aab987bc76be01b8bf27476138555bf6096207d. Chain 2 (Bitcoin): anchored in block 958613 (2026-07-18T21:35:09Z), 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/FR43D2302747.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b21a2e569409a3782b616f9f5a2965b8447735c8b35845e6a56d53256e7acbd. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/FR43D2302748.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27cd41df7cf39189f2613701eddd59b02fabfcc78a74bd154c7326163275fcf1. Chain 2 (Bitcoin): anchored in block 958303 (2026-07-16T16:39:24Z), 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/FR43D2302750.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa75ffb7ea1f7d40665f94f3d756f9c08ac015c44d373b2fbfeb9f94a0b3e6a10. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T07:34:14Z), 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/FR43D2302751.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2bbde8911ff17fa5af51f3f23d51a7fdc947226eb154c9671b6ddcc72fd392b. Chain 2 (Bitcoin): anchored in block 958415 (2026-07-17T12:50:13Z), 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/DGA062344106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74ee680eba5e63596449c297c71b7d6624baa52ef2c090f9b3eaf0efde66debb. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/DGA062344113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11e901a50612eab69328995e1ba0dbf1a5e42d2f56c8d42fbe7b2e13b08ae5b3. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T22:39:29Z), 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/FR43D2302759.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66c8568953dd22a9555d1e642a01d8649b07b60e2bfa2e14440e6038d2064675. 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/FR43D2302760.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28353c469145867ab5c3b0e2dc9a15b4e68f3faa7c9878a0de81a9c3e384fd53. 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/FR43D2302762.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10ad25804f1ef8ccdec0309ba0b099bc43c3adade18597bc9e00ea52a2c14e4c. 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/FR43D2302765.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d80f9ce8d2fee5b278922f18271364a3ce1df8e570613cf244e9b16ea535ca8. 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/FR43D2302766.
Ayakham (Anthologie de la musique kabyle)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22abefc1df41cee80fe13a6d16570064edf93219d31d69740c22509e22fc30bc. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T20:43:28Z), 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/FR6V80902540.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7354c6d1685bb1bb8bbece387026ec7f59db86f51fb4eb24925d293c8429858. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T02:30:31Z), 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/FR59R2461074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06af638bbd233cc5e2322c04ee101e2751e732c0134e4005186d411acd201609. 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/CH6541888572.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7f0f53f85200fb6b07948750d2fbe96b82f2c6b0d75c74246c17982016c4de5. Chain 2 (Bitcoin): anchored in block 958686 (2026-07-19T06:43:29Z), 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/CH6541888575.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10e81f8c07837d1b39217e1270e6a1ae2511f61e6ed959bb04f2317fd817eb6d. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/FRE7T2201110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2392aaf063a3711427672ba5328b82dd7bff98d63f34e7db4e32e77428d5f99. 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/FRE7T2201140.