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 0x67de2f5179dcfb81588da5b54e3d7dbce34228a2736a5dc30099bf9bbb937bbd. Chain 2 (Bitcoin): anchored in block 953625 (2026-06-14T11:37:06Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/23b97ed2-0167-4409-abda-cacff4d94da4.json and https://artists.proofprofile.net/proofs/artist/23b97ed2-0167-4409-abda-cacff4d94da4.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 0xbd3b8e2de84ce5dc4abf791835bcc16812533e16deac08041ed2a897dd205726. 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/SEVMN1100302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x823244af75dfe399a74b425352b6302064b02fde4ac99ffbfa264d5cb7df1d79. Chain 2 (Bitcoin): anchored in block 960276 (2026-07-30T16:01:17Z), 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/SEVMN1100301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x522eca3522fedcb4da191c038fa11d4be91ea906282cd2abc08f4fa89c9c3baf. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/SEVMN1300106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab49f13adabf32fc7ec1ee40ca388a06969f8d61b4042effe10601bcc5efa9fe. 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/SEVMN1300109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b470da0575e600bc5ba66512c93aebc77722a10823d18b065e8cbf1837f40d0. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/SEVMN1300111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3d6c2ea41a590241ed34c869fb6b280a85e239b11cebc8a0a43463d816ee16c. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), 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/SEVMN2400501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87577f60ccffa587b2da44b5203c1259224d3936143c0ed270e964c5da21f182. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/SEVMN2400301.
How Good You Feel (Block & Crown Remixes)
How Good You Feel - Block & Crown Club Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4dccfbed82db05e14549b7fab984944661206e1ff5dcdcc9b25e27a13ade4ba8. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/SEVMN2400102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a9d80792101849f02a2fba3b0e2a7a7b316b846799e9cfc8337a6f312e713cb. 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/SEVMN2300201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbcc281c7113c8a8ce2e78750d47a3f2ddeb617317ca27c5da8c854ae260f76f. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/SEVMN2300202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1be2647067f292ffdbdbe0870537e7ff93af3978f5b4266b31787c9ea35d79f. Chain 2 (Bitcoin): anchored in block 959137 (2026-07-22T14:03:35Z), 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/SEVMN2200501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa09ce02d0b8f86b2e48a2e4783a3a56ce93d9889f4fbae9f2ffd6986d487355b. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/SEVMN2200502.
Don't Stop the Dance (Kraak & Smaak Radio Edit)
Don't Stop the Dance - Kraak & Smaak Radio Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc73ebee27c1812e9d3ead6a04a6ce020fd874fdeb89ac2001d3e4c2885768989. 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/SEVMN2200403.
Don't Stop the Dance (Kraak & Smaak Remix)
Don't Stop the Dance - Kraak & Smaak Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bb16611d882ac0f94a34c032b0540ef60734932743b9e0b03cf3a94c69246cc. 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/SEVMN2200401.
How Good You Feel (Izzy Stardust Radio Edit)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d838300b67d0f828e1bf5cf25374c1ca9f71dede267e95f7c9a5767eae345ec. Chain 2 (Bitcoin): anchored in block 960177 (2026-07-30T00:21:01Z), 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/SEVMN2100101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x522eca3522fedcb4da191c038fa11d4be91ea906282cd2abc08f4fa89c9c3baf. Chain 2 (Bitcoin): anchored in block 960497 (2026-08-01T02:22:04Z), 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/SEVMN1300106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9a35f0f95bc61c8a68a36e7ef67e81c3e2acb111e0405ccbbbbbee91d126bd8. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/DEM091300002.
Fragment 16 - I Can't Wait (Remixes), Vol. 3
Fragment 16 - I Can't Wait - Coppycat & Martin Brodin Dub Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d189441a554a51aac4999dc104d92929f1d14f269b209f3182f6d7c53d016f9. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/DKAZ71290422.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf937328f60cc30a6e657d84e034cd530113c09c0c6fb54ba7afb2cdcc45091b. 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/SEVMN1100501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6246f3c91998f2c1750676ba739f6189deb29ee717a4c8c36c0d926320baaa89. 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/SEVMN1100101.
The Chase 2011 - Martin Brodin Dubbed Out
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeedd1855c950cbc985487d252ed2af506edcfcda8ad0ad77bb73035132fb73f5. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/SEVMN1100102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc96c165ad290176fdfb7c01fc80bfd2066c6ae4f6ec7f7f27f6098570c2c2247. 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/SEVMN0900302.
Last Rhythm Vs. Galaxis (Nick Warren & Nicolas Rada's Radio Edit)