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 0xc93875afcefabc282ac9fa5045604a95f1fab0e81334a8ecd9fc235864b71ca9. 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/c1ea7801-072f-4c41-ab4b-d237b5dc0d19.json and https://artists.proofprofile.net/proofs/artist/c1ea7801-072f-4c41-ab4b-d237b5dc0d19.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 0xd43598531bfa69f40cabc559804c6374594d1fd9ea8fbe49b38f1a24aec1f636. 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/BKBSS2300204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8419ad980b1b98557d42baf0dd95daae5146789c64bc735265d2fc83d85d5c0a. 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/BKBSS2400322.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x347aee8fd9a7e3dfb121b9974a046f156fe8db4e9488e6b0d7f39c2e4078365a. 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/BKBSS2300328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x138e4d6d57262267ee15b48169a350da59778c6efe1e4e9f07b2944871c46eff. 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/BRRGE2301105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c1cac77b540651261d90ab3f746a563f6b810ecae7280b47701c98008f1ab19. 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/BKBSS2300358.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fb65e5e3c63664005d73729a0953f5b6cc04561a112bbca459800dcf09d50fb. 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/BKBSS2300155.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1aa4672203fd4757a0815363fa1078cd3a55d47bf349f6a768562101602119b2. 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/US7VG1547126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf335c700c794c65bcfdd9de670a8f17d25ac263372be67f8510162bcdb4a0d55. 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/US7VG1547128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbacbfb1f40255ef51ff9e6716ba28eaa8920b76651d977203ab4f3b29fef24f. 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/US7VG1547130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5bea88ca659ec695cb0e2a803edff8020661c0a7a808cb92a5f7e12499a7813. 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/US7VG1547133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e26f4bd25c7667f9414fc352f88b3a6878d8337fec58116c30f3a793ebe55c2. 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/US7VG1547136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6ef6c2269f594a8fbb4abdc8a096045d69093f7245f4967ca0793329bd13401. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/BKBSS2400187.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14e8db17496abed93653ff67c68eacf5efe61e951be6fa247f211a57dde3842d. 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/BKBSS2400158.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ad02a93c9608aedf6b7d1d5f1f86fac2aa9c0f1eb59cf79a3f339415db4f194. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/BRRGE2400013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bc4d68b923ab57dccf91714f131e733b067fca74bfd07f65adffb224a84768e. 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/BKBSS2300327.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x523494f3d7c501981b1c888f639c892500f69a21d36a51afcba879868d9a1cd0. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/BXG6R2300943.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4dc9f67f67ad169e9da4472886aa5c2f3c113e615c4fcb864de51ddce60050be. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/BRRGE2300791.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f00e457fd8b837d5d27e188c91de57a32a7fcd3efa540fcfe0ae84a94ddc178. 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/BXG6R2300890.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c4db65fa30d333bbf4cc660e960e71132953cce32201de40715707b70d2c7ad. 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/BRWMB2301667.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10f0fd52f5143a8b092f714c66e3b3384e67913b65e25d608d90a4e4f0534d4d. 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/BRRGE2300678.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b528b4fdcb0294b509179da9d277ad1cba25eeb642a93dbc3a8af90d6903ea3. 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/BXG6R2300761.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcc81507f76e7f1a2194f6b4b03c9c83d63e556c350fc5291ef8172a1c10874f. 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/BRWMB2301120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4406583139c478d623d38b7d109d9feb68c4cb5f2375cc0527901852deb47f8. 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/BKBSS2300083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6e19892330e0f45711f8d4e1ec82a4ad2f52d884617c762a856fea4b0669c07. 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/BKBSS2300063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2772bd87aadb2a36e8dec8a84b2821f2af59c7b629a7cf93fc904354fc049ffb. 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/BXG6R2300413.
Sensual Girl (Malik Mustache & Cool Keedz Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c36ba473f0790443a217c74b76603c702fe612de52faa7bef6a202ef9e2f961. 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/BXG6R2300792.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x665f6d6b524b4804d967746449e5f302e71944c9537073a9d446ecb8b51a542d. 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/BXG6R2001462.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ce9af0761c2bd633055369b4f2640af9f600eb8652076d6eaaf42a6a7114d7b. 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/BXG6R2100941.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8964024d819b3c9a23596905bdbfb200ab7841072c371730c78915256d7657a. 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/BX7P32300774.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6479cfdf09cf4b1b9bd2869aeac35a01d48b46c2ab42391b77903f95931791f2. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/BRRGE2201013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa695abfd8d9679f2470b67340b8c008f37401cb163f2a31699c8e40c94f8be63. 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/BRRGE2200813.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ace392638e084d9fafc3c383d1c4275dc185a41bd43403ebb791cb4231c53db. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/BRSME2201630.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ace392638e084d9fafc3c383d1c4275dc185a41bd43403ebb791cb4231c53db. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/BRSME2201630.