Erik Valerayi Karapetyan (; born 5 June 1988), better known as simply Erik, is an Armenian singer-songwriter. He represented Armenia in the 2011 New Wave international contest for young performers and
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 0x881a1703707985c6f759166927417f00a93b87c2d7417e9b97e41d8aee21f045. 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/518fed34-a9d4-456b-aa7b-ac532ed1b46b.json and https://artists.proofprofile.net/proofs/artist/518fed34-a9d4-456b-aa7b-ac532ed1b46b.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 0xacbedcf85252b8052acc6d6b5aac0f199a5563917025a3506aedc5d028e025c6. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/TCADC1743180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e3159ce7bad869c2d933f5a5a0b6b7506c4a69712ba98b6409cc21628be281c. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/TCADU1894100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c2d63aecc41ca924130d4090556f7aabe1b5c66c4882ba149273b6b70ef7dfb. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/TCAER2097883.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05dcd5def84ea44ef4cc83dcfab53048f43bb905c2deb3f28ad16dd633eeea0a. Chain 2 (Bitcoin): anchored in block 957779 (2026-07-13T00:19:08Z), 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/TCAFC2072884.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef0668cb5c7c5f8909920e2cd0cd27cc7facb22e1024796cb62545de9d86984f. 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/TCAFC2072887.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x389f24bbad78d4f44b005b2980ffea700f3a006f2fdf64fd7728f70650916c19. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T12:08:37Z), 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/TCAFC2072893.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef0668cb5c7c5f8909920e2cd0cd27cc7facb22e1024796cb62545de9d86984f. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/TCAFC2072887.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x389f24bbad78d4f44b005b2980ffea700f3a006f2fdf64fd7728f70650916c19. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/TCAFC2072893.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93c2ef4b24be8631b1281a0808553fceab490cdf0f2441778673a7743a7ce689. Chain 2 (Bitcoin): anchored in block 958793 (2026-07-19T22:59:45Z), 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/TCAGY2351833.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x339f4736d9dfce6006a778a07f8af3c8170a886c93ef1df8c26620c0a659b948. 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/TCAGY2351848.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ce9c6a865d8f7b248b62805989bb9dab5fd438e1fd3a38ef08b46b294f86963. Chain 2 (Bitcoin): anchored in block 958594 (2026-07-18T18:05:01Z), 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/TCAGY2351859.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93c2ef4b24be8631b1281a0808553fceab490cdf0f2441778673a7743a7ce689. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/TCAGY2351833.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x339f4736d9dfce6006a778a07f8af3c8170a886c93ef1df8c26620c0a659b948. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/TCAGY2351848.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc85e99fd5c1665baf6de454d5fc8d5567963c0c0598d08ad3601582344785a82. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/TCAHH2341099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc85e99fd5c1665baf6de454d5fc8d5567963c0c0598d08ad3601582344785a82. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/TCAHH2341099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdee07666e0878e1a76b2c6e6f37b157c51013d4c7daa82fb4dbb85000b5386f7. Chain 2 (Bitcoin): anchored in block 958827 (2026-07-20T07:30:26Z), 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/TCAHK2317506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdee07666e0878e1a76b2c6e6f37b157c51013d4c7daa82fb4dbb85000b5386f7. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/TCAHK2317506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4830e68dffe247bd382913b2321b97eb47f26d7fe9d86681e3ede24ae722950e. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/TCAHL2306895.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf0580cbb5f7b29f019d5c6025c9de9258ba913ca23f17b357de1665aec9a7fc. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/TCAHW2409296.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49186383722f27f28a421159335ccf64acb5cd1ca07a094b04124f61c74a1a91. Chain 2 (Bitcoin): anchored in block 958587 (2026-07-18T17:06:26Z), 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/TCAJH2593077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49186383722f27f28a421159335ccf64acb5cd1ca07a094b04124f61c74a1a91. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/TCAJH2593077.