1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x5492af90a527789e61f6f731b6476d2f69b3af72565ad9eca803975252b48e50. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f41a1f3d-051c-4c8f-80ab-46ee517b33e5.json and https://artists.proofprofile.net/proofs/artist/f41a1f3d-051c-4c8f-80ab-46ee517b33e5.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 → block OTSBitcoinBlock must exist at that height 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 0x0cf8017a4572e913ea617850b8c8a91599341e7e3e5070b3c70089034a6910b9. Chain 2 (Bitcoin): anchored in block 957810 (2026-07-13T05:55:46Z), 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/LVA011000046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc4fa019c43758b636fd23f52eb8b7cb86299fdc693efd42c9057bd32790c1c1. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/LVA011000048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0822f2110c33bce63b88e07ae50d3cc93dd5dd4ef6a70e03d7864abe72fe0786. 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/LVA011000049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe917aa651aa983514d182ffae26aeb11503aac80f570719426af1f9647d3807c. 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/LVA011000051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa257f39af788db9e7294b9ff0d7f93e2bbd56f4387fb4a2ef8f03b9fc6a2d11f. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/LVA011000053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf6e7ab28870922f430100c55ab877899c05027ad85633ada95869829f6d2996. 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/UST8K1831973.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ee21608c5ae754f20eae127d711e510783dc9f40feb1d8fe115eea5b6440e9f. 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/UST8K1831974.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c1fe6adb3cd63d2a93cd64095826e530cda62519c9ef244b6d34bd3d8220297. 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/UST8K1831975.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73c64537b06f35548384a811cdf94ac79bf1aa7959114d986f148d17ba53d337. 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/UST8K1831976.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43f0bc8d7edbbb0c029df251c2cb9d3aea44f1b2fc81f99a878c6fe6d5373f07. 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/UST8K1831977.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1c4a7b570e8eabcebbc1507c52f15c8e8d88d262a52cc2978f0bd48706630bc. 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/UST8K1831978.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc37259f99996639a4ba155203c678c5570a26e81b71f6e9f00b780a40e2d01bf. Chain 2 (Bitcoin): anchored in block 957026 (2026-07-07T11:02:43Z), 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/UST8K1831979.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa82b860525e45c4eadc15a19d6659c991b6104548bc2d1203ad931bc34e6deb8. 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/UST8K1831980.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b1251698e0744cb5ce34486bfea4ee3b9d9112b813d5042527a686080b41908. 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/UST8K1831982.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1470179329a1621cbd35a737d2d39318e2ce9e4b61ef51658cfc252fc155b9c. Chain 2 (Bitcoin): anchored in block 958476 (2026-07-18T01:26:56Z), 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/UST8K1831984.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd033c69591f3941963091e7a376cad8fac8c3a3ba29a4309e61998929bb5ea5. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/UST8K1831985.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb384c24b1c4f05d5294e1477d918d29ab2f2f234e3f886f48b83cd53d04434a5. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-15T23:24:33Z), 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/UST8K1831986.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60bbf92eab2bd8190e3642b8a1680b290caab28a7a1cbe1932b24eb6667dbbdd. 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/UST8K1831988.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3158f8ef3a9905f3e57cb9887fa4b6eec7162e7b65367c606dad5bf8c2dd4ef. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/UST8K1831993.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8951acb46d849bfedc801686625433afdb5fd1952e79add3fa5654feb916655. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/UST8K1831878.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad6f7de7f63b1cdb5519f87fb2e240324cff3f6d559de89b3143dd0c2c40925c. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/UST8K1831879.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf66cdf8290f233129c05fcfe71263ce8e22c686352a2e66d7f1ad848ba84f3a9. 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/UST8K1831880.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73df1f2b31d86c7de808e03f104cc674d53f0841ef305d255d03a27cd96364eb. Chain 2 (Bitcoin): anchored in block 958238 (2026-07-16T07:22:32Z), 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/UST8K1831884.
Pasaule ir muzikāla (Brīnumskapja skolas himna)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b32a9da26364e27ac56ad54423defc3dada20609c19aec3759306fc0137472b. 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/UST8K1831890.