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 0xfcb388f57d002565e4ace9f56a133242232cb31ed5358c6291c58361f1f14661. 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/54d2fa11-8b9b-4dee-8808-c7056d67218b.json and https://artists.proofprofile.net/proofs/artist/54d2fa11-8b9b-4dee-8808-c7056d67218b.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 0x3d4cb038671346f3a1f24f795530f52622d59fd00e1c163efc3552f88129e239. Chain 2 (Bitcoin): anchored in block 957770 (2026-07-12T23:17:00Z), 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/BEN581500293.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbf788ef6cc3891d728b7f6cc6da51a02aad67f8d8440614fd77fd1973cab066. Chain 2 (Bitcoin): anchored in block 958885 (2026-07-20T13:01:04Z), 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/BEN581600099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4955541102ca945ff4af55f01b190994124cc59c2c2d0eb459a12b2b16f0a178. Chain 2 (Bitcoin): anchored in block 957770 (2026-07-12T23:17:00Z), 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/BEZ941603605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefd8ce59c350ac3f321c65cc084802296917d447490a24aa1e0a076050480f9c. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T22:52:20Z), 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/BEN581700498.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe957f53d7ae9f2498f67573210fb9a163554ad6ea841544001657106170b9a98. 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/BEN581800079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe957f53d7ae9f2498f67573210fb9a163554ad6ea841544001657106170b9a98. 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/BEN581800079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3be62b6c8f9cd9ece59019d9138670befbdbfbba72e68d3e6719298392c8a26e. 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/BEN581800480.
Rich Girl (feat. Dragonette) [Extended Mix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86aeee88abc5f6eb474b78d66bd8775ef693125497206b149de20e4a7164d87f. Chain 2 (Bitcoin): anchored in block 958369 (2026-07-17T08:02:37Z), 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/BEN581800770.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff1bd6c7a0b7295645dedff67cb58f890624b3520bd25afc4980a0aba665cc46. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T03:03:40Z), 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/BEN581900546.
Young Blood (feat. Bright Sparks) [Extended Mix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76960342dd5db0910ee264ecc74de96808ea0efc32f252d0316966870a7dbae7. 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/BEN581900699.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76960342dd5db0910ee264ecc74de96808ea0efc32f252d0316966870a7dbae7. 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/BEN581900699.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7048e744e453357e9ed92b3f7ed8e4554af634a9163625da5df298dde16c417c. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/BEN581900740.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01e32216ab23a4be260649e229cc4e63fb39dd2604ad2bdd7dd3626bdc6c2606. Chain 2 (Bitcoin): anchored in block 958850 (2026-07-20T08:32:30Z), 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/BEN582000871.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72edc352e791ea68790b0cdafa18797bb83e3e2ee80361238af83cd38a6439f2. Chain 2 (Bitcoin): anchored in block 958350 (2026-07-17T02:31:22Z), 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/BEN582001057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf708bc3801d9f1f638246109a8ef86fd7d902abeba6e1ab56d3760da659aabe4. Chain 2 (Bitcoin): anchored in block 956745 (2026-07-05T05:33:35Z), 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/BEN582001370.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ba49931ffdd508bd5e0e5576ed3176d77d39639cd20caa59ea836ae221e8578. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/BEN582100225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e9c6018024afe11af44dbaacbda14fa1d70e7ed6ad032675148c3841eaea6f0. Chain 2 (Bitcoin): anchored in block 958878 (2026-07-20T15:13:46Z), 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/BEN582100299.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb97e6b147a1c0e22c7aae2f55c6724991092231f19339a22b1f333bda74424cd. 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/BEN582100769.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ba49931ffdd508bd5e0e5576ed3176d77d39639cd20caa59ea836ae221e8578. 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/BEN582100225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09e6736a77ff5be8683a8b1dedba5388ed766749ae22d43727acc9c8b31d7f52. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/BEN582100945.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdf4032132bee73bd70eba5dbf548e86fd6a46715b0ba9120999aa4c5ba91507. 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/BEN582200298.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbaefb8e9418cd75b62eb36c880fbec830ffdb21a884eedd317ca734f746ea6d1. 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/BEN582300027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5c1782fcaced039311751186aeab54fdd3466e26c1c6025b40443b3a38c4c0b. 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/BEN582300706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4558c0a14d1a314d3f5bc2a90121c99037042582eb9c806d5331de0926a0d20d. 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/BEN582300894.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9daedaaf77a31a7bc904a322602089c628e326cc90a3da3c0ec9ee192c425666. 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/BEN582400873.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9daedaaf77a31a7bc904a322602089c628e326cc90a3da3c0ec9ee192c425666. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/BEN582400873.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a09244b8d1818c316b38b7c31e9d694687c2c6493bf2ff486e3c060e105d72a. 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/BEN582400874.
Lonely Together - (feat. Rita Ora) Dj Licious Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fb0c687d4c00dcfb2a5ca3d950e72fbce31d1e0d307b91b081cdc3c7543b9c0. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/SE5R71700128.
Alive (The Edge) [feat. ROOKIES] - DJ Licious Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34c3a49e225442711458ffac373097a801853a5ea235d678a2e1fad7fa78a02c. 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/NLZ541800119.
Jonas Blue: Electronic Nature - The Mix 2017
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d77e8740fd21700398b078f0ee45be287529a7ca7e863887d2bdd3569e9b9e1. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/BEZ941603603.