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 0xe7dcd2e9290ccf4117d0b85d413e66a83be1646c808d991d969761e48ac474e4. 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/adc04953-e7ea-4a0c-adb9-90ac4d422805.json and https://artists.proofprofile.net/proofs/artist/adc04953-e7ea-4a0c-adb9-90ac4d422805.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
This Is Gizelle Smith & The Mighty Mocambos
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 0x578883474467b0256b8e088b1e937f9650ea4bde821785b81485d36c05ac3a73. Chain 2 (Bitcoin): anchored in block 958465 (2026-07-18T00:04:42Z), 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/ITG580900032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x578883474467b0256b8e088b1e937f9650ea4bde821785b81485d36c05ac3a73. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/ITG580900032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ac042161dd8a4c4cf87f255aab3245c8b94c5e78ce49332ac6ccd245fa06828. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/QMDA61343145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35d16adc62a724e971cd79de7ce6472563376ffc7abe6ca8db0c0e7516275c14. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/GBFBC1701634.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbae5d3631ba639b05abcb2eed7588445e3da97895090f4d2ac9404ee8f53a2f2. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/GBFBC1701635.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46a89d4c5ecfd89519c3b03a50091be2553c43aa650bccb27ef3222d2e1526ff. Chain 2 (Bitcoin): anchored in block 956742 (2026-07-05T05:07:15Z), 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/GBFBC1701630.
Dust (Dimitri from Paris vs. Cotonete Remixes)
Dust (Dimitri From Paris Vs. Cotonete Remixes)
Dust - Dimitri From Paris Vs. Cotonete Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x359aa6d305a94ecf1f55df6185676e5e11d5f7917e9ea673035b5c6540abfb68. 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/GBFBC1701676.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2e7c12507688c7264da48f47cdb812de0f31d6b80d5236f84ea94858cc5d2ec. Chain 2 (Bitcoin): anchored in block 958975 (2026-07-21T06:12:52Z), 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/GBFBC2001937.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34edc318f9d325aa3da624f0da27a258477ae4179aa008ec6784e80a6ca7fad2. Chain 2 (Bitcoin): anchored in block 959061 (2026-07-21T21:34:21Z), 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/DEH180902007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c477fa529fadf911aa65514d09e86dc86d12b567ab6a2daeda5c9dff790ba22. Chain 2 (Bitcoin): anchored in block 958913 (2026-07-20T16:58:47Z), 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/DEH180902004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49ede856dea45e4d93ce7203d7b6b1db915a5f7d15787d38322556c7b860dc47. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/DEH180902009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe952a6c1d5e085475abc2cb2482c7c83eb184fdab0d2bad68e60f4d38c629b23. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/DEH180902006.
Dust - Dimitri From Paris Vs Contonete Discomix
Disco Funkin', Vol. 1 (Curated by Shaka Loves You)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41b743814b20f2b6be908827e84c682f67cba7bad0121fc22200f17f552b3bb5. 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/GBFBC1701674.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf0333e1de896b6eb41f0e4d54d1a237665602c09e458c0dcd930092949e6ca2. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/DEZC62155574.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3514b0aad69b28e6f4ee9cd3d48ecdcd54c744a85f2147ffcba4b9f85ed287b8. 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/GBFBC1701640.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xade656ac149e799fd08aa5fbb822d561bfe9ba6aecdfe4ea8513135fe117be80. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/GBFBC1801738.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbae5d3631ba639b05abcb2eed7588445e3da97895090f4d2ac9404ee8f53a2f2. 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/GBFBC1701635.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02d9ca4ffa2b7081bfb847d47954f62ce6c0e50c0430cae80a3242a020680346. Chain 2 (Bitcoin): anchored in block 960229 (2026-07-30T08:30:10Z), 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/DEZC62203068.
City Lounge Volume 9 (Paris / London / New York / Berlin)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x865cb5eac0a5ad7eb10d020fb7416793ec474f9d0fc620f212ff99de16e58047. 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/ITG581000002.