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 0xc74ffc0f9f7f1a9b0f920bf0f11fbd27f71baa680190721bf77ca4166f37f2db. 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/d1c697eb-2620-420f-9572-cec9b2c01f28.json and https://artists.proofprofile.net/proofs/artist/d1c697eb-2620-420f-9572-cec9b2c01f28.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 0x0d33a99451f9c69bd932778b9b2d4688cd6b2cc09b00faa621deabeaf4f3f591. 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/ITB551614019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4192d6fdbfba2b1f9fc9c8639270730f0a3d53669221d12f2053defc7b95ee1c. 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/ITB551614022.
Il Cuore e la Fame (DIECI - Ten Year Anniversary)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fe9193bb008a83c56a245b5db6f77aa0423ac805233a758838dc587b4a22a05. 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/ITB552317055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6d7c1dd99bfec97e645e801ddd3363a3af9e950f34b86722a744907c464e806. 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/ITYG92100048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa1477fae62183d50ac2a2791aa55abfefd5914dde781cc99b7ed25951335bb9. 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/ITB551412751.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8ae446aba4fc081015a7ccd9e57daefb7fc44f194b1133a7ea3f4d718c96b59. 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/ITB551412754.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3199ea3f83eeca71ddcdb2c8a301613de72054dc78cfd94e1e004bb6c6a4ce3c. 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/ITB551412757.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2738d535f7ece80be090dd256e65c4738c46c94ccd526190d285af6f6e97e0a. 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/ITDF42100001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b31e3769ddad6dac9add23664108107ff110366a5f6909c069d7538f42fa272. 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/ITDF42100002.
Narcoleptic Verses Pt.1 (feat. Primo, Ensi & DJ 2P)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe3d74f766129b1072eb0a98015b2522ccc59249624b3d52278bc842fb09d393. 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/ITDF42100003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5cd0c15080f1cedfcd95bb438ba4856c01af090c32d95678a4c14a13db22cca. 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/ITDF42100004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93a048357cd1f20e2120d6848cbf92a2380dded7e92893940c58e507b3c8d693. 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/ITDF42100005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc811d1e7a94781521f3c27b69abb4e57573fb92669f316031c0c089a35d62cf9. 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/ITDF42100006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfec904720b555d22ade62cb370661bbb2d4dd845112d18a46d5e4af02131ed23. 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/ITDF42100007.
Narcoleptic Verses Pt.2 (feat. DJ Valium)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b4d2ee42a63c47f30e37a7c960e688a36bd4083109d938a6b15244219fc2764. 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/ITDF42100008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6984de91cd2dd77f8e933b1d2346b57d586ad3ddf97c49a24d64f23328f23285. 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/ITDF42100009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14a82648e6eba935ce4c20b9f818daabf2786bf07c620f52bbefe329680fe1cf. 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/ITDF42100010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdab989c0944acf8980e0ec1aeca0ae132f733490d7a77861e954dfce9edc8336. 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/ITRWL2100043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xede9a750d72d2bc5654fe046c1b1a03a2d80be8264e811097bf99de79ec5ca0a. 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/ITRWL2100044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b7842ed378b1146460e555aa7c40c560aad3c9ef8819c7d37c021367b2e4f0e. 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/ITDF41400007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55e40892f63b4c71de6a991135b8b9b2a77e607842f2a25d9ff3c980c94c57a2. 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/ITDF41400006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f2a6dfb2aee41bee8ce9b29883ea2b883cbc1472eb556789b4e7a66b900365d. 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/ITDF41400008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43950084e0e2163f67a37e4142e6dd861c8c57a4237da5f679ad85a17a0424c0. 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/ITDF41400009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6da7d5345ecb06ca1c35eb7691174460362a6ec4608b25ff6255f72c471a92e8. 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/ITDF41400010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34105e9ed8c6dd9dcf5d2616bc53603902e3a7e9943d412834ef7391cc7fdf7b. 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/ITDF41400011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a2b378e1a62d0cc8e239e14083c38a09f86f1a7807329f10a1dfa088162bcd0. 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/ITDF41400012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82bb7982e1563b10a74dc7b5d8664fae8992d6af2ad34d87cecc402f50ff14c7. 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/ITDF41400013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90b08f53644ebd55816969990252c8f593d73d0ed86763a61880cea7be77cf28. 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/ITDF41400014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0d34ad6681c5d83cf09a4cc12a39b878584255b58b8edcf2816d50affeeee09. 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/ITDF41400015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba7fb0ca609e2f1685f6a39e0719b069e78c5fb94ad9e2df7bbe97440e65dd78. 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/ITDF41400016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88877ee8267704c103e65dc684e0f92ae2d5dea6d6483b6d85a990e0bc0d8ab4. 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/ITDF41400017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44dbcde95002973388226a131ef31256f90f2ae3cef0ccce822a68d5e0523211. 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/ITDF41400018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3f109a51a5bcc468f255dadf1dd974f32c71561783b9e61a97ca723185bf835. 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/ITDF41400019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x314d443807a0e30934ede3239a21ab4b912e33809fde8db83bb840498dc5d3c5. 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/ITDF41400021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39eaee33653f8ab2f2748d14bcdfa29fc1d9db000ce535088e703a7ee504b9ed. 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/ITDF41400020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02efa819dfbab6e05b2b42635fa75765f8e9eee9429d1ff05e3b7f2fec9e5559. Chain 2 (Bitcoin): anchored in block 959107 (2026-07-22T07:19:23Z), 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/TCAES2097509.