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 0xf529e01b61a20567ae147da2dd78f0411e073aed5b55849b093602c9c2b46a9b. 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/e07ffaf8-e3e2-4e62-9f28-9904db35642e.json and https://artists.proofprofile.net/proofs/artist/e07ffaf8-e3e2-4e62-9f28-9904db35642e.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 0x4239e4435820b0c538b3aaa93673de223dd1e487dedbf17650bbe84a3f279168. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/FRX282151362.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07d7ec0316c57fec608446dcdfec69027dd8567caea4cbdb64eab9f3f88d27b7. Chain 2 (Bitcoin): anchored in block 958407 (2026-07-17T12:08:48Z), 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/FRX282151357.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4239e4435820b0c538b3aaa93673de223dd1e487dedbf17650bbe84a3f279168. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/FRX282151362.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5026c80862765b0df46d24a8fea1f6aa2a73945ebac725d961ce28e7122b32ed. Chain 2 (Bitcoin): anchored in block 958541 (2026-07-18T11:37:54Z), 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/FRX762362866.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec00d1e632f19e12af9b3b039cec83941db5490fbd5e39b631f478caff27303d. 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/FRX872323738.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6783948b402af08f964ea887227f0131e1c6d944fcb8f5f19c3aa6f33db58ce. Chain 2 (Bitcoin): anchored in block 958202 (2026-07-15T23:57:05Z), 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/FRX872323741.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32aba9d71a88455cc2fe738d49798e0a214550f6e96ce086563896d370ad5c4d. Chain 2 (Bitcoin): anchored in block 958907 (2026-07-20T18:37:03Z), 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/FRX872323742.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f57abbff085b3231f3ddec3534257912d3f6cd79ac0f9ad9816397dfcdf596e. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/DGA0L2360339.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd2bb0970e9eb29a19d0fcf5f1969532ac668266de54ec77dca15433b6d4fbd8. Chain 2 (Bitcoin): anchored in block 958134 (2026-07-15T11:34:03Z), 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/FR96X2471232.
1968. Музыка со вкусом (Live Acoustic) [Unplugged]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf05c8818bf1d7c086ef2da1386cbaf06b4feb709d41eb315a0f868ed59361a60. Chain 2 (Bitcoin): anchored in block 958827 (2026-07-20T07:51:53Z), 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/DGA0S2445068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3110c65ef5b6857f6660eface91ff31b648d8014f04126c4743c57b028f1efd3. 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/DGA0S2445069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf134f1fe586c5dcd7b37b736a9bd8d9a96578e3626e8dae34021597e322b3090. Chain 2 (Bitcoin): anchored in block 959001 (2026-07-21T13:44:13Z), 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/DGA0S2445070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x669a4cbeaa8e39d49017d90129f78bbe87a1d2dfd3cac0f7b31f3b9e822a45b7. Chain 2 (Bitcoin): anchored in block 958366 (2026-07-17T04:59:09Z), 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/DGA0S2445071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43feb15ddb2bd2f302e30678e7ef474d215d23b9630cb6d25d330c8c36a13588. Chain 2 (Bitcoin): anchored in block 958992 (2026-07-21T13:02:30Z), 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/DGA0S2445072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42a7051b8d722076c4b39ac265c720f7335868b4be0a7b189a2e06059eefbe60. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/FRX282598354.