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 0x2a50cc84d1eb59e8e911a9626bd1a87004a6f703453a8c965fa717f861cc1e56. 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/189b5fc8-44eb-425a-8a39-457050acfe08.json and https://artists.proofprofile.net/proofs/artist/189b5fc8-44eb-425a-8a39-457050acfe08.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 0x2d9bc5d4c7fe872f43936d54a35f38cea809ca1a9eebff59b33a2d14c170eee0. 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/BXHBP1901075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb76413fafcd5dc4e4a02700e1b0bc5d43944005febd047106e713b9cf92ac5d8. 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/GBRKQ2160133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa04c2a7938fc361eb81c8f4d0ab5fa85f9163aaba6247ad3b9ec5ec6304c76c5. 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/BXHBP1900777.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc16471d5c92187decc53c39c91fec287c2a1b4d0f3007735b69ab15afd325085. 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/GBRKQ2012492.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1d6a47d3cc154a1c899c8a42a1989b2476a37b90f7b1787e8d607269e5381ff. Chain 2 (Bitcoin): anchored in block 957011 (2026-07-07T08:25:35Z), 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/GBLV62001055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa84d4c1f45d0d20d1e11b38d1f01280d95afabc36d38d53261b21b6b606f552c. 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/BXHBP1900414.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63659305733bdf9230f2561fc0b9a76347f99c15cc7302c3e9acfc222e26b505. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/GBWUL2008631.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a9280476766eeb08813178622933438e84c0ae50224338f48ca720510735197. 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/CA5KR1983373.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea5d971a0c3813eecb83021d0b7101a747d6ab2edddb18f4909f14feb98f2044. 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/USLZJ1963307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1a47a893da055db0b164d8799466501e0f5ba993f54f53ac625adb4a19f9947. 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/BXHBP1900137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80f354c87be53879b516608f7164afb38287d676291283f9a28e9e807c8eea21. 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/BXHBP1800285.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcace83718bb8acb6993d4110aa38a5edb81881410f998fea288880e8c72304b8. 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/BXHBP1800291.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30277f3c1d02b0c2eb991d931296048de6c191729dcbbb06fc87a467ae40770d. 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/BXHBP1800148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06a2be2a9c64bef5b3ebb30935692c98c9064ba1d25b8bb9ff29f7b95fe34eba. 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/QZTV32449126.
I Don't Wanna Fall In Love - Extended Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76430bfe390f2277f48375ad8b652785a50e7947947a92df89c692876cc93d2f. 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/QZTV32449200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7af0ec913763197b8e07f2e1049dd62218e63baf4320d55642f4b3a951d7c64. 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/BXHBP1900468.
Can't Get Over You (Röde Remix) - Extended Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8cc78304b57ae74d618f1a93adcd257314d876a2cc804365b7f24b5b1d0b01e. 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/BXHBP1900469.