Abramowicz, Abramovich, Abramowitz, and Abramovitz are variant spellings of a name meaning "son of Abraham" among Slavic language speaking peoples; it is a common surname among Ashkenazi Jews,A Source
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 0xae4c2cf23bfb11cf8c22f3765ca0a797b32062c7168c6060a9eb61d074b13982. Chain 2 (Bitcoin): anchored in block 953626 (2026-06-14T11:41:45Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2dd33f02-83a0-4bb1-b9d6-79bb890e7138.json and https://artists.proofprofile.net/proofs/artist/2dd33f02-83a0-4bb1-b9d6-79bb890e7138.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 0x2950cd9d5c7517555c6c9afd80ce5abd0ef6fc8297020523ab9c6c2f13e7f8f9. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/CH8091900894.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8ffae06f7e08927db6811a354e16bf3dee6556e6118c4061de7e6ef28a8e0ab. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/CH8091900895.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x747f3c09b71387074dfe161d1c25eced7a4e75d28e6d07517d758b0399faeb69. 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/CH8091900896.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x912dd87545084ff0de7c862d75ec7fc46f382254f243325f40ad3f1867198583. Chain 2 (Bitcoin): anchored in block 958041 (2026-07-14T18:13:17Z), 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/CH8091900898.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaddcefb186bcbf9155f5d87d952bcb7f666c3c7d171383d9ce7fb8cc90ac91e0. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/CH8091900899.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca43268bf4e65fecc640474ba30d1cfe51b8b76e167dc96f32b09fca65135ad5. Chain 2 (Bitcoin): anchored in block 957043 (2026-07-07T13:52:39Z), 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/CH8091900900.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56154210e8bbf0d9e5b08ea7c2e9305f4b3056a7da9f00b75fa5eb5bfefad968. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/CH8091900901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8baba86486b769a412e66361195659ec430e10b9ad2e052e75fdd81d056fca68. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/CH8091900902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x747f3c09b71387074dfe161d1c25eced7a4e75d28e6d07517d758b0399faeb69. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/CH8091900896.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2950cd9d5c7517555c6c9afd80ce5abd0ef6fc8297020523ab9c6c2f13e7f8f9. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/CH8091900894.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3770396d5a7202f434f0af5f2564196f3d323da85a8316a7d4e8a37523ae6bd1. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/FR10S1693899.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x655e37fe08b25587dc2924669d6fc89a76e61fc633788dc2556719d6de30fe72. 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/FR10S1693900.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x112dbdfe47ab9cc77cb925420c3d28460472077fd7bbd54d72bdb1fab6fc5261. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/FR10S1693901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x112dbdfe47ab9cc77cb925420c3d28460472077fd7bbd54d72bdb1fab6fc5261. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/FR10S1693901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3770396d5a7202f434f0af5f2564196f3d323da85a8316a7d4e8a37523ae6bd1. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/FR10S1693899.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1865ce6e5a649876d7e4b1d6dc76c22c9f9aa27c06f133d9a4c621aa9e71035. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/FR59R1568766.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf5ae903d6180f2403b3461ef7a401df676f41946914cd65b521b6742e2474b2. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/FR2X41447072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2812233ffa21edc37faaf2bfbeab9e9aa8d6ebdc33d364f9a08d23cbf59b382a. 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/FR2X41447073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95cc58f14b19a852d13d23f8203e89421235e920ffa64d13b5766d7dd4700b4f. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/FR2X41447074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4096819df6da66a3f26a94036015d8bd0d6d806d2ef1f0423f52f66118c553d1. 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/FR2X41447075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf5ae903d6180f2403b3461ef7a401df676f41946914cd65b521b6742e2474b2. 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/FR2X41447072.
Uncle M Sampler 2017 / / 5 Years of Uncle M
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3012ac3cc61c9ca07569a1ee9fe91f29eec59ad5c726b41d7105a5058875832. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/FR2X41771268.