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 0xae78144018a0d16dcf04a6e4b53b342202d1ba0df1d1ef8f3f51e49a008eaf5b. Chain 2 (Bitcoin): anchored in block 953710 (2026-06-14T23:32:42Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7f79e2dd-71a5-4af6-9bcb-12c3bf430415.json and https://artists.proofprofile.net/proofs/artist/7f79e2dd-71a5-4af6-9bcb-12c3bf430415.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 0x91c2a07e7729fc86a17c38339caf99d644cf387ce043958f5c470a5c21306acb. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T20:06:10Z), 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/ITO172200194.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ef7a4b62ca087dec57fe5fc3ab61d3e9814795c8cd00b3b18b700f52be6683d. 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/ITO172000208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x485f9b3f85134ac0bc99e99adf45f8553e102e38896a6074372b1a3385c13f2f. 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/ITO171700394.
Fantastic Lounge (Deep and Chillhouse Hit's)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaad526f32f45de2cb9406bb769c1883b84421e1159be71c884660bb92e890899. 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/ITO171700024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a71cc216f4f8391f593d1b8ad85efc52205d7ce5e13684a44ab043e49e8db77. 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/ITO171700025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9229645ca869a1d8fc933874465bea6eb2f193705ecbff9e1b2116cc8281e21. 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/ITO171700026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaba1eea05d89aabd3aa810526b16e40f9ba3a213c18acff98f786c90f1ce2971. Chain 2 (Bitcoin): anchored in block 959132 (2026-07-22T13:20:46Z), 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/ITO171700030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7525498c2eed7c265bfe65b2b16935a7d29907cbb279ce78f315ded9c92ff58. 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/ITO171700031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfab833393a13ad3295b1acd469b7f07017d5fc6ac1bfe43428ef198916d8a3db. 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/ITO171700032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e4478dc7dbe3a2414eed02aabad81dee94fac932c2eb2280e34640838efbf72. 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/ITO171700033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b3c4e82b2d0345a7bda7183782b4f4328ec69ba77352d511842570acdb1d0f2. 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/ITO171700034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c797fe99cf4722dde48d226e014928558ae94cc4c2965b5bbc794db53500d5a. 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/ITO171700037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8308e7b687184afce42da7248a3b09550d80e80ff233403abc6e8c254898c20f. 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/ITO171700038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72efd58a171930d711a81d8f4d7174e2b3fff61165b1cab18948fa932b59bd07. 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/ITO171700003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53b3fd9236c96f9ca5aea9868c3344c285309c8cb6fe981667ad6d9499214e60. 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/ITO171700004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04694c0de37c57fc07d6c8b2f4cf088904e8c254a0195e83fa69999d8d065e33. 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/ITO171700149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2347394bd119daf4a3465695f11dbe97285126243b61b05f79ac00098ff3664f. 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/ITO171700174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5bc33f258ec2f7f1464a75a07eefc37481d481d3ae363ab08b14c710d279b88. 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/ITO171700179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2ce31d228823fbd49d3466ddea19a5a1a1e8149cea25cf8490322af41752aac. 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/ITO171700180.
Refreshing Experience (Chilling Selection)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebdb760e181958b4e056deb45d1891e8dee8107809f7b998e05054b007caff0f. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/ITO171700081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33f72ef20de9dd6be029b684762607b1c19fc9302fd1ca686907fcc89e9aabb9. 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/ITO171700084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64e16e4505f5acac5e531a10152cc89559722d78af7a63e3bdf387f1a1d3aba1. 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/ITO171700085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x542a0235acd247dfc908eae94e42bfc7daa657874b67448dcfc20a95e83ebc0e. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T19:49:29Z), 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/ITO171700105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80e8e7253b6bbe37e63419385471e22a6c10009d976417040d1d82007a929c5e. 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/ITO171700107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d055ca46427811eda2cf3b7b65e9d59a68e809e3bc1b3ad6e68b2e054a157da. 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/ITO171700114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fc21c864afd6161211a9884c6138c964fdf6666c46ba6084c95ba13c479f64b. 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/ITO171700115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82b43bf9552eec51b1df6e299d2310222dacc1387ea16488fa38fe7e08de307c. 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/ITO171700197.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4088bf20f0a019e43509ab82861e85dd0d8844675ca70441c79a5d3f483152f. 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/ITO171700199.
Chillout Service Agenda (Realset Underground Experience)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0513cd9a4aa542aee27fa560d2e22dfb68ee4005aaf1175a930f9ed60baf250. 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/CH6451506077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8838f306a555635b2d0b80c1cf46d61ffdf98946ae2ee240e06c5c29a01ee4e3. 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/ITO171700170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf7bf39fbc0e9fba89d425843c87faed5ccb11966c6a51ee7a0243b510130c67. 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/ITO171500203.
Chilling About Us (Royalties Free Chill Music Selection)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8eea3a59fb72b04056564b129bcdc80b7e09a11973ebbe0184dd21127d24f569. 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/ITO171500173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43c51b2d0e96c50d6273ab3472ddf62711824e55b5444ed38bb7868036f7a056. 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/ITO171500174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa74ecdeb1243c57de0c600294417be8c82c6c5cf89eb4402e47d658aa492100a. 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/ITO171600140.
Deep Love Slowly (Deep House Underground Selection)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb989b59215fa2e8c3e428434d960e562173f1ef9fc6215d56a189a7a3bcb694c. 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/ITO171500118.
Lounge City Chillout Deep House Alternative
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd45cd07fe58dd202d91b5b07f7d06221b77c16ce863be49ac3d14715ae9db60c. 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/ITO171500193.
Chill or Change 2 (Lounge Modern Selection)
Building Chill City (Electronic Artists)
Lounge Vanilla (Cafè Chillout Compilation)
Slow Beat (Electronic 440 Hz Tempered Music)
The Pink Flower Lounge (50 Songs Selection of Nature)
Deep Change (Real House Underground Essential)