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 0x64f56e3f4a88961c3c8b8d82a96fed6bad309059338baf275a621432bf43f8fe. 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/b19a3889-e123-4677-ab41-a5407753e42e.json and https://artists.proofprofile.net/proofs/artist/b19a3889-e123-4677-ab41-a5407753e42e.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 0xc19696d9dfc6bba8247f9d6708576bc4289f59035cd753904d08405373474e26. 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/FRP8I1602270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7641f5bb4515b7d8c25bd8fc9798c051bb019fc28bb1ce6a24d8352b3f6ba85. 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/FRP8I1602280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf66dac56f920583eaf6bbadd0f2d7a9c16f96fb264a16550a9b3fe406dbba13f. 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/FRP8I1602290.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9297a8ad9744e228c164ff871da0dc0d5e845191ef8616896873bba7369b669d. 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/FRP8I1602300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ab642f373784b8ec3556d0acc4b4d5d8d7885794e9e5bbe07bbd61aeea346dc. 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/FRP8I1602310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6f42506e9a29238a83fd3f6c676ace3f99927efda6a11ae69ee13c612270778. 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/FRP8I1602320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4592a2afda19cd6e868c2c704a6b87db60e1fa0d28d42b0390f2413cda40e2b. 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/FRP8I1602330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x625448e6e728a42469b32e06263bb3ade4f88dece91ad1070e16fa73c7d560f9. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/FRP8I1602340.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96ec9fa798a2dfb0c82d59fcb2b56547ef582df3fa9f4714a6aa7b0b706c4c98. 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/FRP8I1602350.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f50a041cc3f8c0526114b793c7442071083cadc5d3aa4cbf045e2b302eb7b7a. 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/FRP8I1602360.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeaaea3e2a0b9badc9e02d7624792114ae634db3df2c7470641cbb16f25cc12e9. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/FRP8I1602370.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf71540d255456e118a90b051f293da558a21aef074a2b28ce16ae91f01b8e214. Chain 2 (Bitcoin): anchored in block 960160 (2026-07-29T22:48:59Z), 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/FRP8I1602380.
Want It Back (L'Entourloop & Troy Berkley Remix)
Want It Back - L'Entourloop & Troy Berkley Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc79478b8df1c8940cbaff2fe9a2a0a40d8d65518db5da04953e53d733ed3e6bd. 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/FR4EO1700027.
Roll Call - Panda Dub & Tetra Hydro K Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6816220dc0ae0c1d05bb08ce452c7d1114b380acfdadcf836359047ea1ea8d95. 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/FRS182063791.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf941d27e12befd9173487494b4ad33843dd47702e330a9944d5de8a0d2c2cdf2. 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/FRX762433091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x213b93d61be92114db9c78ced39f46b9935243396b0257733fd2609fc5cb80c1. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/GB8KE2154929.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x709c7fe0edf96292617f7e556fa744ea22d4926c7e8301a8bbfa530c1fcfc953. 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/GB8KE1759279.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc79478b8df1c8940cbaff2fe9a2a0a40d8d65518db5da04953e53d733ed3e6bd. 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/FR4EO1700027.