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 0xc789c13172597668e1c162d40a12692e8722da2a1c1008b6234c38a2d91003c0. 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/46ad30de-6030-4cf0-9866-cf520797c8f6.json and https://artists.proofprofile.net/proofs/artist/46ad30de-6030-4cf0-9866-cf520797c8f6.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 0x10806af4a21c7ddc87739eb06641c1a5fcf2359e8574832cf422c53b63a1a89c. 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/RUA011900073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a5e46463c2ca4894ae72b7a6f4d6ea2baa96a5299e10ab69b2872e8642aa255. Chain 2 (Bitcoin): anchored in block 958908 (2026-07-20T18:23:08Z), 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/RUA582102778.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x549e1ab7a38e2788dd0767125def88ca71f102c624a757a643afb47b9d19f489. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/SMRUS0064381.
За красивыми глазами (Vlad Frolov Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c3bc846b94e5deddec2505a6391f7da165ae6582f8e4f261317bafd982e1942. 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/SMRUS0067451.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3b395264f2eb0e8df9a882f7065aba89f86e0c95e92884a3f5dd147e5236bcc. Chain 2 (Bitcoin): anchored in block 957709 (2026-07-12T13:52:43Z), 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/SMRUS0069085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdf13852e285e7018d96a876d48b66e1c299eb1d1f7adf34bac3b76b8f91e1c5. 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/SMRUS0069268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc91b27a0585cec02d250134cd57e9c085dfdbe0d949e52e8424ec54370c75af. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T14:52:05Z), 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/SMRUS0070493.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0703f03847dbc509a34207335753e43f2f5fa5842c567b8ebc3a3f0d221649c5. 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/SMRUS0070978.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdaf6233d4dba0151bc20bc20b59889737ec9627f23ba5f02551521954866ed09. Chain 2 (Bitcoin): anchored in block 956637 (2026-07-04T10:56:23Z), 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/SMRUS0073752.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3f1f81bb40a95830c16543e3e7dc4cc12f920bdb5fb3f55c9786db842707e95. 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/SMRUS0074476.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60adb88cf6a8b564b60479ca6504d22cef84fddd2acaf662bde6e61cbec59461. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/RUAGT2322776.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc22ca4f86c4c87a341aaf92bc31db5ebd976c09b9e7042229ea3657bc747f8a9. Chain 2 (Bitcoin): anchored in block 957697 (2026-07-12T11:22:18Z), 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/RUAGT2360158.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95672d21ffa7cb8801bf13893cf41a3e0fa8d63148d28580612de38e77a3e2b4. 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/RUAGT2403802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbdd2c41b3915bfd7e49193ff3d4fe3ec38a61bc5b4c2818d2ac58399a83aec5. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/RUB422402451.