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 0x79909f2894b7c6e1e2a1951e3dc2fe48cb76f592d7ff64cc22f6b4b6261624cd. Chain 2 (Bitcoin): anchored in block 954693 (2026-06-21T11:50:32Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e45160bd-c586-411b-b117-97c8f0a411ec.json and https://artists.proofprofile.net/proofs/artist/e45160bd-c586-411b-b117-97c8f0a411ec.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
FYH411 - Find Your Harmony Radio Episode #411
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 0xb93c7ab4382bf6c2947aa8cca969472c3652fc2239d5153a557fe6d9b5de258d. 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/GBKQU2474482.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20e3638c228b2abff45f82105b58624880717d1976aea39e9c70a7b1736daa47. 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/GBKQU2474494.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8d95d3a09de4cd05c6369f57c4ae1393d4c1d783145b7a35c3513d69b019146. 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/GBKQU2474495.
Wondering [Your Love Leaves Me] (FYH411)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26827ee72a02a5737a0b6f2b0df223d97eac55bee9f47c26ed1643a89d9df0cf. 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/GBKQU2474497.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49e9d9b402529aef0c2ee37b246438eb9edefa99ee1c43337a0b602b2e5c276b. 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/GBKQU2474498.
I Need Some Lasers (FYH411) [FAVORITE OF THE MOMENT]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x274152e3affe97b09dd029aa6ac635875793eac9a3be830f9c66be920fa23716. 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/GBKQU2474502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0ca24456488b31f755a5460713c29c5e56b978b90dd9d7389b13b48b7036675. 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/GBKQU2474508.
Out of the Sky (FYH411) - Paul Webster Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcb8ee9bf85a12fa638f3e5fd664ed17e38b6e9585ff288a0dcb24e012dfc374. 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/GBKQU2474509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa786296a7d57a3339ac75d1dbeefe45860dfd11dbe0d388e2ce8cdebc78ff63f. 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/GBKQU2474510.
FYH387 - Find Your Harmony Radio Episode #387
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdca300ba24859d333ebe8ec769547820b871dd2b2d0dbf925437812afce14d7f. 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/GBKQU2407866.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49c26b8a7fb59a67087747068b48afaafb0f4ec7f1ae597a0961f2d7ed70d1af. 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/GBKQU2407868.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56a7552f9d2740e4c167c0b9c76b834d9874d5c75dbc5fc9fd06792e3c7bdf9b. 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/GBKQU2407869.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc101e14bbbb2201765edb959c79563be6e32b53c7f1cc0c0c37df08a734a9b95. 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/GBKQU2407873.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4703b2d5f15ec39c183601c164672b6da8c0dd003461a917e8f30bbf7c1db036. 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/GBKQU2407875.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b3a417811a87d67dd85e626dfaf63544b17957d4515d0b9c04f00a21eacb561. 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/GBKQU2407876.
Still Believe (FYH387) [FAVORITE OF THE MOMENT]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x728e72034b99035c6e5887329525e5212928d573dd73ec9078f86b0f28c39a14. 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/GBKQU2407878.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed36ed842df28a08b180535bf1b90a6667f6f4600df8f19644044b7405cf79f4. 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/GBKQU2407887.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa28aba4c23a52e431ab38403811139c005de20ef04556e2ad8502b76f582397. Chain 2 (Bitcoin): anchored in block 957067 (2026-07-21T16:50:45Z), 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/NLC732000657.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62a877d18c8abfeeeaa8b554f8a1e47c3679e7aed49946e47ab67f6a215d5bcf. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/NLC732000658.
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch