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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcde79ecfa0b5114a3d1932478c1a738dfc7d6fbc367ffa9914421bc0c12a8413. Chain 2 (Bitcoin): anchored in block 954027 (2026-06-17T00:55:08Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3975511e-bb56-492c-9f44-3026bf5a4695.json and https://artists.proofprofile.net/proofs/artist/3975511e-bb56-492c-9f44-3026bf5a4695.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8aa1a8b8039e8ff0fa322a2332f45455ba2c97fab4d9acd2f0dee2351f92f74c. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/NLCK41044171.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x289b14141e20ccb0c591cada73db57d03d19e7f65bde8e3d475eccf74ed90ded. 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/NLCK41044172.
Now You're Gone (Break Remix) / Lost Soul
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6a9eda9fdb25d424342d705d41cb23d9f84add3fcee50a16c55d7b621864134. 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/NLCK41402521.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0613496935c940dc91b82da6ef352c72eeef9063442a10af19514a20e36fe56. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/NLCK41402522.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe849529f5c781cf0982a60a2df9728db98e4e0104d12067f4c3ec9eff5e624e7. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/NLCK41402932.
Liquid Drum and Bass Sessions 2019 Vol 2
String City - Artificial Intelligence Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf698bb5ae282073836798ce87acd99cd24f3f7adce21f88c73c515f0ca1207ac. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/NLCK41044688.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41f2c0c82cd8a7674a42aae192c5a06acf001feded274cb95f6180005e73890f. Chain 2 (Bitcoin): anchored in block 957065 (2026-07-07T16:43:21Z), 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/NLCK41056030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38f6b10ffd1601459e77ddc1555000b286ffc4c92e1fb2a1dad7f453a1f8c3a6. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/NLCK41019225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e0ab6f4a530f2a92681bf0605f3c3efa96147852fecc8036622f26903e333d4. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/NLCK41053085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf9f98187724a724806c275273ac9b061035372e6be4be51cf8faf1ee4081535. 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/NLCK41051611.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2581a9fee3f1e15409f5f11081e66eb96409408ae4d63a8dfa7840a0e2a2510. 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/NLCK41050283.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c1f48ce668525c139aa5ff50017dc048b0cdf23cdbfa9ae5e9ca95951e9f430. 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/NLCK41049148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc110587b8eeb2914242897188499376ed87091196000304a6cea78f0c0f64ec1. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/NLCK41037557.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc27570cb1ce2b4f580c34574ddba5c99b1d0606269231680ad51f15d6f572f7. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/NLCK41044690.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7281231ba6bf7bedb4aef33d150d92784ff2c70af9a5c4d90b1594fdfaca41d. 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/NLCK41047545.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x510381119da86c7c42ad8d6f103bbdbcb838f7245ee57865af4306e0fc2389dc. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/NLCK41047551.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11ab762b3c19552a005a11d1e86d972cc4d96a7fcedca4205d1b2760a101d814. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/NLCK41051600.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x513e8b6f0101bac5cd55a85e4d9c711eed4b75b7eab43bfd024b3b07517333d2. 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/NLCK41042948.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92b51744f95d7cd017fca988a72db73d6a86e3055fc0a75ef82eac3743b86d4a. 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/NLCK41054388.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbee244aa67010db9ba0bf2f60eb5d559fed04d635b358016f7a92a5edbe329db. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/NLCK41036872.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79308398f09fa78c3af328d8e09984f80e6f0b3aaf9a38c07ab2c3373bddf082. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/NLCK41024597.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8772f805a2aa8fce82c574cce87ad9c9a71165932ecec79e35766b07f25029d4. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/NLCK41019045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f2909b6c1234c0c1a01134513f4ad2005455b2f894651b2a81db56033e52872. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/NLCK41019054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e66b8d0cba6e28aafdba8f6b64f65f3c11dc581ef85e970c86f02f018fab8c2. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/GB3Y21306018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44a8b57e3993471a4f8bae67849e8198b7c056cd7928a7ffd009b2959df81b6e. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/GBIGR1955001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d280b7eec98557934ef18b7f7b74bb8c3bea74f69417074fede0a6827234858. 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/GBIGR1955003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x073ba7a3dfa806bdc50c1053df88426f6544a2595f98958ae20cf7a22d21ed00. 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/GBIGR1955004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cc40c7fcd563f962eec41841ae334946731664fe5a8a829738e306b25fe7ac2. Chain 2 (Bitcoin): anchored in block 960379 (2026-07-31T09:25:34Z), 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/GBIGR1955002.
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 0xf698bb5ae282073836798ce87acd99cd24f3f7adce21f88c73c515f0ca1207ac. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/NLCK41044688.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5882502477c86fae848c78d4dda118b6bdb764f3425f59ea6ae484be232cc565. 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/NLCK41044697.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8de3cfc9b4509fd5f759fb9932881034ed92131d8f89290c0e972dbb22a49aa0. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/NLCK41026232.
Fokuz Recordings presents: Hateful Eighty (CD2)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79308398f09fa78c3af328d8e09984f80e6f0b3aaf9a38c07ab2c3373bddf082. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/NLCK41024597.