Metropolin () are an Israeli synth-pop band. The band was assembled in 2005 by Ofer Meiri, an Israeli musician and music producer. He gathered several renowned Israeli musicians including Dana Berger
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 0x50c2c8f78128580ef2fd9a24cdfa17453bdb4e04e70320f2fb357a22a9e9500f. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fab7bc28-7c6a-4b82-a23f-acc47cecd1a0.json and https://artists.proofprofile.net/proofs/artist/fab7bc28-7c6a-4b82-a23f-acc47cecd1a0.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 0xd1c9b4404cd30dc8d35a9bcfb8bea6955bc656600abaca7757160487576c26c1. 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/IL1020501315.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47ede362a2d8d7e9eef207d5a76854bfdffcabdc442cb4aff1dac3920f31d37e. 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/IL1020501460.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c67045f89b734c6a1567bbd22c7f7a55213c39eca42e23f852c2272e59d84b1. 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/IL1020701806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe14f684a0edfe3f33309ed404cf3656d0581c2d4b5d2ffa2c149dca9028f50e8. 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/IL1020505691.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94ff515a8d7b96a68571c9aed07583f904a4fcd6c10fddf34b96214c76fe0ce6. 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/IL1020505160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4172199c4bb958223f83de5617a424250da99a11033d19954ce3179522a65947. Chain 2 (Bitcoin): anchored in block 960185 (2026-07-30T01:32:48Z), 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/IL1020505694.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71534c003bb9152ecd67381a3ec17034dc8981e998fc12f5d364293272bc5f46. 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/IL1020505547.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0a41f7e54c8e957dfee32e78d9fe430e1e07cdb62256a8e923f4c320af52dd5. 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/IL1020505695.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20baf5c6a833454e83295479fd205a69a298acd6516f55a5eff45527b3c1c13b. 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/IL1020505696.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91055f2331a0e3b8fa1be806f40ec9131a9499b942eac760e21bed9b49907e02. Chain 2 (Bitcoin): anchored in block 960302 (2026-07-30T20:09:33Z), 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/IL1020505697.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf23b5301038dd1f6d87287888cae2cc8a3c955ca6d439dc4531eed4ddc5c4866. Chain 2 (Bitcoin): anchored in block 960229 (2026-07-30T08:30:10Z), 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/IL1020505698.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70cdaf29af642a7e017c1e5c02c69f0e7e7a8fd840a0ff58d898fe5ced224a5f. Chain 2 (Bitcoin): anchored in block 960266 (2026-07-30T14:44:50Z), 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/IL1020505699.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c97fc56f74ac71594858c6b0ec7f57db7121ba5b3182fcdb4a968debf285537. 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/IL1020505700.
Yashar Lalev (Straight to the Heart) - Single
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93b7fbad25c95039d14f95e6bda651dfdc7f3344fe34144fb891585470360d4c. 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/IL7532212610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa32c67f0e37dba45648f95e9d89f817d396eb96658c02f9ea37dcf3592e94b67. 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/IL7532313109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3083ec1fd5e0e8eb4d10f194f1be3a904aea83083d6988aafccc679defd10b88. Chain 2 (Bitcoin): anchored in block 960509 (2026-08-01T04:30:37Z), 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/IL7532313110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62ce91ea6e3c19a0e4116141dea98f818fddb96dc1e5491bb11c1798ced24be7. Chain 2 (Bitcoin): anchored in block 957898 (2026-07-13T19:28:48Z), 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/IL1012300847.
עבודה עברית - מחווה ל-60 שנות יצירה מקורית
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc87bf04947bb9eb4c52ad5d1c831b3f60eff789e77759e59c1952cab5e838d0c. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), 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/IL3600801160.