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 0x4129d154973e429315433a14f402a589ec41d4cf7dc77d9bb67f989039770536. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/45019a3d-610f-4533-8506-e0c9201310fd.json and https://artists.proofprofile.net/proofs/artist/45019a3d-610f-4533-8506-e0c9201310fd.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 0xb72b3eeaed351c72d0ad1ed2b83a9a3d58429d05bf6f286850b4118a961982a3. Chain 2 (Bitcoin): anchored in block 957041 (2026-07-07T13:25:45Z), 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/NLS762300762.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51f11e845d213163c1b7e5a70376cd5e614b8be6629431e6fd9a4e4cc42ad732. 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/NLS762300802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc58af808ae3bfa41fd957f4aee0614a086ab72710ca58740c15bb7bf0deac82c. 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/NLS762300877.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe297f2aaf38da8dc786f5ccc1d595d11e2ac75f7bef85892dc3ff32b4922f5e7. Chain 2 (Bitcoin): anchored in block 957043 (2026-07-07T13:52:39Z), 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/NLS762300823.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14f19e2e45c8416520e8f6c3ff7ce57ad068de09a5e3b16113cfe966f14bd8d0. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/NLS762300883.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95d5f77c5694fe11a6d6b906e98b97bccac24fca2215a2d460df39336a616da9. 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/NLS762300829.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95d5f77c5694fe11a6d6b906e98b97bccac24fca2215a2d460df39336a616da9. 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/NLS762300829.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba7cdf05ea70ab245455671a9750c91ad15811edf4d66cb5a3b339689c1fad89. 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/GBKQU2395285.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02884964b80b4de41aa93d141d1c14e650075d41c189c6dc245d1dfa343fbf3a. 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/NLQS92300113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc857e6551029f4bb1164f90d201481de6b5030bbb903e6468caf2a232357d42a. 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/NLFL72300680.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b216d7b6fa14a1702f77179859a95437a2d6b36ce73a1498d8bc446b0c13bcd. 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/NLH3Q2300228.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb72b3eeaed351c72d0ad1ed2b83a9a3d58429d05bf6f286850b4118a961982a3. 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/NLS762300762.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe62a83876f64e31f34bc67f53e312eaadff68f6afa064622dfc5a6a040ae35ce. 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/NLS762300894.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64516e6652fbf0451a50c10d4de01b33355903446ffe048364d6f62de4f65b35. 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/QZK6Q2050777.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95d5f77c5694fe11a6d6b906e98b97bccac24fca2215a2d460df39336a616da9. 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/NLS762300829.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe297f2aaf38da8dc786f5ccc1d595d11e2ac75f7bef85892dc3ff32b4922f5e7. 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/NLS762300823.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8305b21142ae5b5c0d9cdca836186f4c923cbed9c4293e3055af49f47fbf8fb6. 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/NLS762300866.
Spirit of the Wolf - (Knockout Outdoor 2023 Anthem)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x692085bfcb39c12336102ece7a01c2e049b66614a68d6233526f5665ce67e707. 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/NLS762300528.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7606c8f6b9d5e48a9dd75677641b2bd8c710242b60841faf8fdbbfb9d52905cb. 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/NLS762400029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dac024c0a2349ba74def1c36cad4c7ca46fb04b81a113e999fa29095d338dec. 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/NLK072200126.
Hardcore Warriors, Vol. 2 - The Dark Side
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7606c8f6b9d5e48a9dd75677641b2bd8c710242b60841faf8fdbbfb9d52905cb. 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/NLS762400029.