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 0xb90829bd7848eae223144e627339be03ea80a93842e7d55cc9b48d4f20467178. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/962cd56d-efa4-4227-9053-f077f36ac594.json and https://artists.proofprofile.net/proofs/artist/962cd56d-efa4-4227-9053-f077f36ac594.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 0x5f9369199aea66db869686c7734a926edc50bf53649759c3607c91a0588a6e1f. 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/DKZK51400103.
Hold You Back (feat. Maria & Fuat Talay)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75b40d475b1c140effa62a3d4fc5fe4704f7b74874d38936e0a432abc43f7bfc. 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/DKZK51400106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecef46675f9ebb2286176e53814d6cd4c228daaad1fdbdcb8f59b168ec1e8d99. 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/DKZK51400102.
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 0xc3b880960a89e123fbc6b16f93d1635e51b81880399da9ad5aa5b15b4cbb994b. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/DKZK51400104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x483946eb730d5525a5589220f8b85999b88cb8eb05698ae1e112584e8abe5b23. Chain 2 (Bitcoin): anchored in block 960459 (2026-07-31T20:22:46Z), 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/DKZK51400105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99aeb0dddef0e23f35e8c18798d8d2714e2e949b8893b3232b9ca7068faab4d4. 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/DKZK51400107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc6415fa304d8c5814503666f1ce2369995256a2b8a083f2fc8c4665c9bb65f3. Chain 2 (Bitcoin): anchored in block 960506 (2026-08-01T03:50:58Z), 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/DKZK51400109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x108b93785f0c1e808b438136784fdabfce4a3622b4970dcbd57b826acc67b33d. 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/DKZK51400110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3e85d599d8c1a68ced56796d14d0907f9e1d46b2c52bd6e24bf578519c48a7d. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/DKZK51400111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74b3e4debee87e985b76f241cf4f70d2799b796b5ae2a9059f7adb0f4a8291ad. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/DKZK51400603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0305b51ab1a0607fdd2dac9caad764dfd71152f9d0b10352cc6c66e5cb005846. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T21:15:00Z), 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/DKZK51400604.
Man of Trouble (Djuma Soundsystem Remix)
Man Of Trouble (Djuma Soundsystem Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccb9f8dbb50d4c7ad1818402c123617b6a58abbadb9585c7de4c80b73faecbf9. 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/DKUCA1800013.
Stretching My Molecules (feat. Al Agami & Hush Forever)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b0a75c9508e41213b543229b534ec3e40eadf8639e7885e168e691b8eed0ae3. Chain 2 (Bitcoin): anchored in block 958697 (2026-07-19T07:58:24Z), 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/DKUCA1800032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfa81a28c3b42e7a90cd3673def500a57015bb8dc4ac9d724107762c1860f65e. 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/DKUCA1800098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7effabc1ed6d7cbfce9a30f4a6c854a3c8fa5246afae3bbde4530b7833842deb. 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/DKUCA1800099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb181c40f217cda70bc8a5c39a2a16f8e9438eb94595c644fc05136b60babeee. 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/DKUCA1800100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c892431750040a3cce872fe816dbe20eda1e2b0a63726071a5d29eaa9466bae. 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/DKUCA1800101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfab8417f75bed34fbedfbf5d72bdee798b9692b4496b2ebb7924154ae4f11576. 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/DKUCA1800104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb56d6b79723b32ea9db4dc6cc9eca4d8c4f5e2f59a6828e12d26f8096ef6c576. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/DKUCA1900110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7166969f8ce26bea042bf24da942540db35b6860aa7807c906bdc65f2df8f0e0. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/DKUCA2000018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6b33d573df695da6d3911d96a93c50752098d4b1dda530fa936dbea516cffe9. Chain 2 (Bitcoin): anchored in block 958827 (2026-07-20T07:27:36Z), 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/DKUCA2000077.
Scream My Name Out Loud (feat. Camella Vi)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4359c3113e68fc12df1611c3b3630be8f7cad42d946900229f2069faf5c57b27. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/DKUCA2100004.
Live Sessions Part 1 (feat. Deep Dive Corp.) [Live at Vor Frue Kirke, Copenhagen 2022]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x134b6749088d0a5bb9122ae37a5d7f98d351c075dc483281d4af71f53fb7afee. Chain 2 (Bitcoin): anchored in block 958378 (2026-07-17T06:45:39Z), 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/DKUCA2500014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacdae7c5471b25fdce58817f2f21343f9dbac83275d4caa550b5c1b19bb857aa. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T22:37:53Z), 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/DKUCA2500047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac38e281823c9d0706ec57c8477cc0a1e83e36b0d4e037d56878f02e503fe5e1. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/DKUCA1700015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b85444d65b0e3390eedeaf865d43c559e192012dfd9c5caf083aaa19716d088. 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/DKUCA2300025.
Lik - Mashti & Polyesta Remix for Womex 14
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefcf237882f8cfadcc159d7d6b5b303780ae8a61bab83c447c32eb024e99529e. 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/FRPH91500040.
Obsession Lounge, Vol. 8 (Compiled by DJ Jondal)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f9369199aea66db869686c7734a926edc50bf53649759c3607c91a0588a6e1f. 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/DKZK51400103.
Malice In The Garden - Mashti & Jean von Baden remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1ebf0c6077adc9ab52909804c8f4913e10dc62835da6062173311a970ff109b. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/DKZK51400404.
Obsession Lounge, Vol. 9 (Compiled by DJ Jondal)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d4cbf1970e9ec453c765ba99dd681be7cb7e7b71f1a984e6bc486cdaab825ed. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/DKUCA1600003.
Obsession Lounge, Vol. 4 (Compiled by DJ Jondal)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb18966f86d7453951702ada154001f19ab67f2b3cdff40196ede92c5f9d09af4. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/DEU231500664.