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 0xfa0aee4f639f60f26ecf2c0dc81ca58065f193f27441b38116ba314912cf83b3. 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/f7ad91cd-f336-4f46-95ed-93afb9bcbe10.json and https://artists.proofprofile.net/proofs/artist/f7ad91cd-f336-4f46-95ed-93afb9bcbe10.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 0x9c3ab4192fb2b36d3824239833b3cc92607e600af6f72e1f12aaee869e3adb62. Chain 2 (Bitcoin): anchored in block 958600 (2026-07-18T19:24:05Z), 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/LVL152300670.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91234d7f54ca944623c3eef12a337cedff59b3ca77a22b67adbd09562e15f620. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/LVL152401113.
Uz Tukumu pēc smukuma (Roberts Lejasmeijers Remix)
Uz Tukumu pēc smukuma - Roberts Lejasmeijers Remix Extended
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6b3021a23828a894e9b541c6a7532d988c83c468a98be6a6c162d3f9eae8b3d. Chain 2 (Bitcoin): anchored in block 959052 (2026-07-21T21:45:27Z), 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/LVL152402141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9fe9ae5320abfbaa02e8769d757ecfd276db7efd9ef19892e70d2c1b484d71f. 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/LVL152402936.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d0d41bb67285889b478f05fdbd63f87a9f1f11a2350475ce9cfa87097fe0817. 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/LVL152401462.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9fe9ae5320abfbaa02e8769d757ecfd276db7efd9ef19892e70d2c1b484d71f. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/LVL152402936.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27d6af13f32682cbde56b7f807aea871ecaa3ee029aa083f0f125a4fa1ccf3ba. 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/LVL152501754.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x241794f0e4db3df01cf42e7145f37f5de64170099463809876c88540faa04d64. Chain 2 (Bitcoin): anchored in block 958878 (2026-07-20T15:15:18Z), 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/LVL152500008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x409c9255b182a9630f7957a0781b7fadc731a4be40b7a7bfd5c13b94c7f5e341. 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/LVL152501071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf1c7b357e73b531eea8ae0be65958b6bb44917382f789a2411aaa3edf048d92. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/LVL152303070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf289b8d81c3d9e11711380855f2017f33b93f7d233310734ebab94996c80352. 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/LVL152501792.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d51b8feb2cfebad6396bf2d95d15600529c70b9769d8f0c6c86da70333f755b. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/LVL152102755.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a3606ba94d481fb24c99d94353475718f0b6ff979f5cbc4bc3e37450cbc94e2. 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/LVL152301233.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d51b8feb2cfebad6396bf2d95d15600529c70b9769d8f0c6c86da70333f755b. 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/LVL152102755.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb1d62b4582ce97934a76b84fc2406784e7c28499a5d449ee672e691a1b517fc. 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/LVL152402374.