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 0x7ef498ac40b42126676ffdba2b432129338b39dd6c3a4cd2f359473f2aa5aee6. 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/25b4f47a-ac5b-464d-bc6e-27c8b2a2d78f.json and https://artists.proofprofile.net/proofs/artist/25b4f47a-ac5b-464d-bc6e-27c8b2a2d78f.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 0x4128f1dbe579bee58da5a662e73c58d56f37bde3d48fe0350ffe8cf1c5197b3a. 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/QZ8GX1701955.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc445605b5604d1f0f76bc2c42d3191f7b8f71fb9fb76eca68726f576f45ca467. 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/QM7282380705.
iTwerk (She Twerk) [New Beat Order Remix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf0e08a780e4503b1bfaea5276d1dd6439ba124c3ca82b5e27bd4b8e7c47d2c2. 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/GX8KD2344930.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95c9473c60ee357b761f171fb20ea5b5a24b81c4487bc6e643463df73115682a. 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/QMDA62243117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29720e07cfdf47d43b1f9f44166fbe9ac232d30733c2c62606999ffcdb1b5d7b. 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/QZNWX2123929.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6411bd459c41a66e157134026afc9bcbb420eff82480a698c9d6bfda5f7dbcb2. 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/USAT21704896.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6829c5d52340ec96050a78dcfe461df66ca1eda0f5c29b023797b375f2aeaa2c. 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/USAT21701539.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x610ddc8e01aefee86f09a69657a9f7e6773e374c7c753cd632d3dc80f8996ae7. 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/USAT21701536.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c213c2730227aac6e9c4c8b4815f55bdf8df39c6efe07fc64a9a8fd746ebf73. 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/USAT21602333.
Does Ya Mama Know? (Dance Like That) #HEYNOW
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a9ee77a451c3f3b358455e318431d0178e042d70dedd0bb7ebaec9898d512c4. 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/USAT21503379.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9e2628ab01ea73dff4ededdd4b09a0130ecc9f8441c7582e8134e88f2b6cce5. 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/USUYG1047027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc984a944091ababb2aa3962564f765d16b140224f64a3c1b60703d1c1874ba04. 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/USUYG1047028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c8f931dd7d519ca431dea13209d8b12b867273719a76e3e2795b997ac00efd0. 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/USUYG1039049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55f956d11abfbafa617d1f8aa26d1e1a841259a6109bfd77a69f4c4447fc6fdd. 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/USUYG1038958.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7381fd0a00786f8f2d4397ed849b2e569d790935043c5fe8b5f31a80e8806203. 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/QZVEM2385940.
Juju on That Beat (TZ Anthem) - Challenge Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd795cf8f9a63813f286c66e9e9bb6fd820bcf67bd81012b8335a44bae49add38. 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/USAT21603699.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36890e0fb6f17ec600d92f056a5c12c2e6629710b269dc5d693ad6c1fa96c19f. 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/USUM71506622.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbf9a908265cb0bc98a9106b30c1af3e5b31566b284b25f91f18c4e3124b62ea. 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/USUM71502647.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d2ce30880ef99f9391d1d22441333afa7b8a092ad24f293b665c5673fc830b3. 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/QM33K1500008.
Cut It (feat. Young Dolph) - Challenge Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7edfeabc39d5e87b9c8ae0470565c5f961d293cb4344dd6c631d7628916b9981. 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/USAT21603708.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4558d141b2ca663ce6f7b3052d5c9892b10ee589d75bbfe894e1448d026b24a0. 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/USAT21603709.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52092bdde8a87e3818fe7c8ccd6da029f40f19aa0329a67589f599b851b348d1. 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/USAT21603710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33f365787a5f5b173584e037d43ff875b0932530945127ca0261bff536571fac. 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/USAT21603713.
Juju on That Beat (TZ Anthem) - DJ Taj and DJ Flex Remix; Challenge Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4be74a07a5595368a1cbbed6f43e17e30bf0d3665c6f5ebbe3a62b3fe9d1871. 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/USAT21603711.
Best of Twerk Music 2015 (Booty Shake Music)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0659a5fda3508af5f6ff3035404f6f9012dad522da721132825f1e7e86067358. 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/FR9W17898715.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa33b9241741463c005da30a042ed53e79d0932bd372f86247f6875a9f361c32a. 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/QZVEM1880301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32387df839d89d4d322795b7077bc614cd7fad9cdcfbec7f5109dbabaa25ece0. 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/QT2VB2455321.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x520f24538d1e648b0424413b7525ed9236724e60d7f639266c52d56343a62a8f. 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/QM4TX2290161.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6690b40179b171c43aa50591f0cd775a00b741d1342b14f4d599a3aa0262e0b. 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/QM6MZ2288683.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe06262c0659212612084e74296588891a47c6223c73e4d698fcfc91a5d199913. 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/QZ8GX1701987.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d5aa84f74b656f73c24981c61097395f22bde396ea830213830962752a2f7fe. 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/QZ8GX1701735.