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 0xc3be7432bdbcb63f81570ada3930406a98de415188d2f06be55b7b06eb88eb67. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6533977a-8f64-4cdf-93fd-bb77c82ffe20.json and https://artists.proofprofile.net/proofs/artist/6533977a-8f64-4cdf-93fd-bb77c82ffe20.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 0xb451beaa8f1f89828a9ea6ed905b247a23e1acc2cfb3ae338e03857c3c8f369f. 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/US83Z2125857.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeac6bf41f9f446ac6f5bfb59d2ddc9c33d4cde8956abcaba66ace17ca736d2dd. 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/US83Z2125858.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06633b9c9f754278b662ea175fb100742efe9dda879dba61347fbbf80f67c488. 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/US83Z2125867.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x965443d3c6f23fb80b7394771bd5284b0a9a70712487ca4d9423abe449cdccf0. 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/US83Z2125852.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ab56d7c9fc6a13643bf5f2db41ed20cd5e9cd29d592d6b116af91cc6f7094c5. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/GBKQU2425043.
Wish I Could Tell You - Muhammed Felfel Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e4b88cda223dae47b1a7525bbb8c9014c0523768c9f4c138ed34d53d67639bc. 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/GBKQU2425044.
Wish I Could Tell You - Tamer Fouda Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb15bbd9926a14c0342bca96737f7f397134a3352b63e18ab51d8fbafc63ee93. 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/GBKQU2425045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd20f0409683c4c2cf5d92cc0cc4c1bf7b275794a8e810754e2d55adaa5dc5cc7. 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/US83Z2342255.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf38325ce8f5760a1683a706b1fa5caaa85bad696b22e0ef48db902cfc21478f1. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/US83Z2342256.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65563cf0347bfd0b12fd704eae8f04e487333e7c665df1a1e28ff510060bf885. 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/GBKQU2303773.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5720fc84de8e8f8aa209f14a453b65f1ac4db73cb6140a4df98df0d07dcd377. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/US83Z2230164.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3fe57b667e0a5e32af54ed380f3b226859eddc76e851dfe8fb6009754578b66. 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/US83Z2466886.