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 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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61c881c5f6e586308284d42836e6dd5d489df14907c3d95d752a7afe74b59710. 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/a3ec1a59-2e34-4278-8634-9d2594578394.json and https://artists.proofprofile.net/proofs/artist/a3ec1a59-2e34-4278-8634-9d2594578394.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 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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73761be968e9d273a05283d8661a0a9e704074c3ed366020e46122883699470b. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/DEP960300005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf02e82841df3f3c0df72719f9e0ec72946b796d53411f478d21ee2fd46da40c4. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/DEP960300013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3476bd81be55aa24d2391e42d22c6aefdc12fe564a64a4b9c841568a26dd7b5f. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), 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/DEP960300021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5df913ff2de5d1ff99347351be9ad2a3259909b1efec2a046298338aa346ca76. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/DEP960300053.
Back To The Universe (dim rmx) / In Groups To The Hydrandd
Back To The Universe / In Groups To The Hydrandd
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x239931317970dd4466a2abf04dab4c2d15020498ce072fe2c0270a21b84efba7. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/DEP960500035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb46932aa1d7e0c56d575518dbeb4aedcaadf072e1304eab2fd6841a61a9f9a0c. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T14:38:07Z), 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/DEP960500047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f1e81a0c780ff4886ec10db8d84b96ab66b14a3196697215b4b98886f6414dd. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T05:07:36Z), 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/DEP960600176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad0e4a4a12c59a900c7c9e15bea6af87fcb37ee0abe4b8c12db2d22c092012e6. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T08:39:15Z), 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/DEP960600178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebd0f5922be80ab3be153ce7b19b822dc4cfd4cd739b69602fd45bd4de55037d. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), 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/DEP960600189.
Return to once intended Bliss / Columbidae & Ohropax
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2c2d952c12f324c1c4c8c374fb40b8c3054719ccbb741c7b446d59787036a38. Chain 2 (Bitcoin): anchored in block 957782 (2026-07-13T00:52:48Z), 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/QZTBB2506331.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfd800d89b8e4d9cd79c8adb04292bc1657c5a3a273664b755e496a9263c8490. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-16T22:37:47Z), 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/QZTBB2506332.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c01426f451eef1576a0f16878c626775d964a52cbc04038e91cce76a62f9bc4. 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/GBBPW0900152.
Can't Get Used To Those (Kosi Edit) | Ohara - mixed
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1ced4b61388977d42d265eaabfa9c546972e1d53d4c621e1a7515bfdff8ac57. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/DEG931591362.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b3460e934d65c25575a3f2dbc7d6f963fa48c241f02a9da3b3d8777b0ab1586. 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/US25X1084067.