Yasin, Yassin, Yassine, Yacine, Yaseen, etc. may refer to: People Yaseen (name), an Arabic-based name Yasin (name), an Arabic-based name Yassin (name), an Arabic-based name Yassine (name), an Ara
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 0x53baaa1c6ce7891cc9c2f98a025e3d9903c2aec258431bee68cbb977ef583281. 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/b68626e2-8944-41ee-9dd9-18fe924b173d.json and https://artists.proofprofile.net/proofs/artist/b68626e2-8944-41ee-9dd9-18fe924b173d.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 0xfcb1ae4e8e79224e9734d2a32a684688887f6493ba5bcbe426de4c076b46933d. 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/SE7C52300101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x783d8b58c1c35039edf3397bf2f57e0b3d89a8df29ae7a0071bb89adc3257e06. 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/SEUM72400064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bce683c1479d5e5eba1079220a62443221d07449319b480704a5a88f24f3891. 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/SE5BU1959071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0b16a2bf856105cc795ad67413f8edb94013de8055dfc94e8265ff6de88132f. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/SE5752198145.
No Borders: European Compilation Project
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1053396ab41bbe8b7351239f38f6ef38c02973291706926cf45d506671625e8. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/GBARL2202341.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcb1ae4e8e79224e9734d2a32a684688887f6493ba5bcbe426de4c076b46933d. 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/SE7C52300101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22dd44d6e6c9ea617afacfa59f0de57929c884995305d2acc797ae1a3bee90a9. 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/SE6I32019985.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29e6816c4afd8c3e4a4c9c1d334546b5835278e080e078810bfeaa4d42a3d419. 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/SE5EM2000601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcd0f0a3a9c5faff8e78045eab624b5a70c1d4ddbd1a4fc99a847927af1c2438. 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/SE6QE2255503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0e3742288cfcfd7ba9567e885b5ec28543e23342b7454bcac2e74e1f9c6876a. 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/DECE72301666.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18138a0ed26671b70bfe917cbb8a448192dff99f8c0540f9a378aa932b242832. 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/SEXUD1700601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda82cfcca15f788e7aed2e2c429e17b6fe1e98f933671935d6c086ae3b5ea89e. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/SE6XX2296084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0b21abdda3f04f747bb8128a29024f6d17ef21c900b6acd124d87f61bab4ea1. 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/DETM41611133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0b21abdda3f04f747bb8128a29024f6d17ef21c900b6acd124d87f61bab4ea1. 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/DETM41611133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9dfceba72016f77be3be64ebef92338f8a0f6f718f77b0f042491b3f86ad263. 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/SE5752496858.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x328ab67c63ddd4bfb5efdadef2e4cf013d1af42767e149b450b041723d76f407. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/SE6SA2283422.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4413f580d889dd5bd0241dc2e21f5a023f7f9319868f2904c3e609f50d49232. 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/SE6SA2283424.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe965faa3d9892124e06e395ec11e53575d0a6cf76c5ef82f34ef8fe3563479b1. 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/SEUM72100885.