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 0xc60a59bba5364363f00421e2d4975655e56a44c929cee58e1a205e314fd28ff9. 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/5a7654c5-2e9b-4e9e-b324-11fa31959ad1.json and https://artists.proofprofile.net/proofs/artist/5a7654c5-2e9b-4e9e-b324-11fa31959ad1.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 0x2683e91d2c9e7422607af3f0669c6401660687181df3c8edd0434c739c1c3e36. Chain 2 (Bitcoin): anchored in block 958830 (2026-07-20T05:30:12Z), 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/US2Y30634441.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d8528ec3d1336a874bc863ea5b1fbfdc8006e0a8939af99021c849422e2139a. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/US2Y30634581.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3665088652cd775852eb3928442c66394b5ea0281b66535d527ed2ec9573ad5. Chain 2 (Bitcoin): anchored in block 958742 (2026-07-19T14:09:34Z), 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/US2Y30634323.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48f392d257d5f010cdf7851f670d61687b040c671dd2b48ebdde4b1fea83d932. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/US2Y30634324.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4979c643511edbb598afcf364111b5bdcf4db8b4dfd87a92ae24c62891ec050. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/US2Y30634423.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9d49d8c60f8f061d835322fae71a01b9524863d1ec7dcbd61976f1a36cfc62b. Chain 2 (Bitcoin): anchored in block 958392 (2026-07-17T09:46:31Z), 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/US2Y30634319.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cc10c48f6c8cc14b50442cb68e995afdbe4789546c21d0243c66624a41459e5. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T09:45:25Z), 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/US2Y30634325.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9103c05de6e00d4e0a0429a9151c66f91ac2330af1185bd64adf9b4e3d7ccf3. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/DES310400071.
Paris Is For Lovers (My Love) feat. Tomas Høffding [Mixed]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdbfcd6651065630cac6408e3e13c2c630119e1aab60b0d812e328cad40820cf. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T09:16:54Z), 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/DEU671200014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e953dd8d9be80bef5acbe64b2ab9c329818c711f2399e80dba544509f043de4. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/DEU671200015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7da5b37cf24dfbc9aaea63fe03efda6b6d9d4a629b71586350b8dd3ca349bc47. Chain 2 (Bitcoin): anchored in block 958263 (2026-07-16T11:06:50Z), 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/DEU671200016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff07aa88ec7f93b9e48f976b6d1400bb8893edcd3d60593e0e250e79477eddd5. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/DEU671200019.
Paris Is For Lovers - My Love (feat. Tomas Høffding) - Club Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcff448940dfc886364ba932f008cc21e6d7955efb78f6c7d080e4c8aca152a7c. 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/DEU671200045.
Question Mark feat. Tomas Høffding - Adam Port Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x954977c7d65392bdfd16ff4a04e419a2ddb59cad6309b19fee13662a461fda22. 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/DEU671200092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21bc4838aee1d1e6931227d4831a804b33e20a62919936c937854a17715240ce. Chain 2 (Bitcoin): anchored in block 958401 (2026-07-17T11:10:25Z), 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/DEU671500133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a1eaeb71f109b3952d6fec63dd800ea038c078fcfc9fb201f34e28a11817239. Chain 2 (Bitcoin): anchored in block 956711 (2026-07-04T22:48:52Z), 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/DEU671500135.
Underverse feat. Mandel Turner - Adam Port Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae6e7ed7a3713cdcb125f97c504fcf5872a1948e0081fa96d8a00137e0f8f021. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/DEU671500234.
Deeper feat. Terranova - Riva Starr Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66b1bf55415e6f8eacfa2ad1c53cf5641ce4e6fc4590cb3685dceb0423c73a51. 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/DEU671601811.
Turnaround feat. Terranova - Alican Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a940795f85aed79dd440ae880f07c88b4fdd6db9394c0e45d8ec80643afbcdb. 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/DEU671601814.