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 0xd4944e7d1a9f98897472b5d7672c5e4baf8bcccc71e4e2a5813b5958e6f3e25e. 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/42185a6c-ae17-4882-b1f4-115798d27263.json and https://artists.proofprofile.net/proofs/artist/42185a6c-ae17-4882-b1f4-115798d27263.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 0xa657e66c4bf73ba0b95a17a1595e72683d611c40c1587ec520db13053c005ada. Chain 2 (Bitcoin): anchored in block 958714 (2026-07-19T09:51:44Z), 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/JPPS09803150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4b7c610746fb9b0b98a0c2c1ec1342af3de46f060c371723101cb589ca75041. 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/JPPS09803170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14b91156bcaf9d20742105e9917c0abc0e37723e96ba8a6f864be9d9261ee3ca. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/JPPS00103920.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3bf190d4449cc060ae06f5252635e703ac9ef79bee8a261d86fd822c6ad41cb. Chain 2 (Bitcoin): anchored in block 956742 (2026-07-05T05:07:15Z), 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/JPPS00103940.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe69282ec1e5da86cd093bf8951648364b66d22e9a2b64425bc4c4ff89b9282be. Chain 2 (Bitcoin): anchored in block 956742 (2026-07-05T05:07:15Z), 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/JPPS00103960.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb13066550b48304933e8edc6b55f9f00faf189cebbe35471de24537608575e8. 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/JPPS00103970.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd14dfc8e01f65c7cef8d7cbf3b526a7cc8acb02168fca55bcac6b9f10b439c3a. 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/JPPS00103980.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75f3b39677cfb1124e926db3b8c1e4a2abd0209e72b1e7976b0ebe927f61e6e0. Chain 2 (Bitcoin): anchored in block 958510 (2026-07-18T06:38:22Z), 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/JPPS00104020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03e115bef1af90d9c6fb92619069c19eb04b83b3f44bf9034a30c6a72fbc6c8a. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/JPPS00104030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f12016771a36adb5875f5fb3144b1ee2825e37197af6811e6d16ab9d8c87eaf. 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/JPPC00201049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2479bda51eec7de795ee6357a28232979e1dab64b4d4fac5020549bd553a02ac. 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/JPPC00201469.
MOBB STERS - Feat. M.O.S.A.D (FUTURE SHOCK REMIX)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3290e50a6a8a4499de4bf9e783a329023a871c8f61f9df4be52eb7f4a988718e. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/JPPC00201470.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99a88a866d944eef28acc47cd8b34594f75a4defaca3f033035a6755dab3be40. 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/JPPC00400034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4160fa2bc8b74aad520ddd259a00963fb42cbbcac7375ef6551f0fd48d86e4b7. 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/JPPC00400035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x330966d0ffc8163225414d6e10b17a00ed3ca9f599037aa1e95000f1ad03630b. Chain 2 (Bitcoin): anchored in block 958582 (2026-07-18T16:47:25Z), 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/JPPC00600130.
Welcom to the Bay Blues Recordz Feat.Kayzabro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a8d056d2513cfca78b467f6e498099907c25de8b212faaeb1c6069c67595997. Chain 2 (Bitcoin): anchored in block 959015 (2026-07-21T13:52:01Z), 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/JPPC00600131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x634f54d326261baaacd3c22a00a2a5b8c5e4026bae38b87e3b20f662f5f74e2e. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/JPPC00600134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x797d5ed635df8fbd8d77f39607fb5b2655841dd46d01ce7b6699bfa6bf5006f1. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T21:05:52Z), 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/JPPC00600135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x257ece1f4c00501940fc99969ebfe53e96bb027b89edefc3c750143e4f398a1f. Chain 2 (Bitcoin): anchored in block 959001 (2026-07-21T11:41:42Z), 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/JPPC00400033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4f7a967db331102a5a4da9c5aee51c03924ed11c11827e29e78d8cec85830d8. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/JPPC00600139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad03eef56712264385e73a61b5eb820e5e49daccf237e8319d0ae94d0204f602. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/JPPC00501596.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde00bf25e2786c0e0d051959df10e77193a4a659b6dc42f4c78954659acdc167. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/JPPC00600140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9cb02e6a70a7708404dfd02d921a00740eb68ef85e65a9258ae7c53778e6d88. Chain 2 (Bitcoin): anchored in block 958121 (2026-07-15T08:02:12Z), 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/JPTO01200427.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86ef59f72bdc03506ba27ef433deb3a4afd22d81de63e524e5d1b1fc3ee4437c. 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/JPTO01304103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44263b784509c8965ae7360622a2a7acca964aac329aed0a099c4b25ffc926f5. Chain 2 (Bitcoin): anchored in block 958197 (2026-07-15T20:40:29Z), 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/JPTO01304104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7658ce54b6270f9a98904b11b9d4a03cd38ac08b5dfbf35c582e399288a3e96. 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/JPTO01304105.
MUSIC IS OUR TREASURE - DJ WATARAI REMIX
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09d45872866786958e34b0e5dc38b2059e371ce6a959414a86a3d8c58463581c. Chain 2 (Bitcoin): anchored in block 958357 (2026-07-17T03:33:42Z), 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/JPTO01304107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc87be5dfec8310e0fcf1227d8510d0da9bf04e1a62df83c9f69b22451b98ea0. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/JPTO01304152.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x330966d0ffc8163225414d6e10b17a00ed3ca9f599037aa1e95000f1ad03630b. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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/JPPC00600130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a5bfa8d76ae7201ead1b8125d604438fd4f4908f5fa86652145a0ab2fafa1d4. 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/JPPC00600132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7e98581fa2e5f33373681638f3b2f080cefc601cc466957292cabb2b8ab5984. 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/JPPC00600133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb670a36775e4bf590f86f0bddf8d6983af61c38ec27c50faba3504705a30b73d. 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/JPPC00501595.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb531ea22d4f30631cc50c1bfd833eebe551732a2677de1e6a4fe4ec388b890a1. 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/JPPC00600136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde00bf25e2786c0e0d051959df10e77193a4a659b6dc42f4c78954659acdc167. 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/JPPC00600140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cf6981152aabe91324c5969f558694c416de2a1f41a5a8e73f4d3bd4eb3c558. Chain 2 (Bitcoin): anchored in block 959134 (2026-07-22T13:34:27Z), 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/JPPC00600141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30902a7db5fb9c8d5c4ee683d3ec612d930783c2c1a1ab3ef31f0494466373d7. Chain 2 (Bitcoin): anchored in block 958988 (2026-07-21T09:08:06Z), 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/JPPC00400032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b83de7a010d454a3363c9e61a2afd193fb4f1e9134b088836c2b61ca83bac42. 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/JPC971100373.