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 0xa2a90c46f9632b9d338fab5f8a9f8da2a4a49f6a8e3ef8196a4214c70289f355. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/81735d07-9c96-4121-9922-4a2736086e1e.json and https://artists.proofprofile.net/proofs/artist/81735d07-9c96-4121-9922-4a2736086e1e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Hardcore Italia - Latest Greatest Vol. 1
Hardcore Italia - Latest Greatest Vol. 2
Next Cyclone Hardcore - Collector's Edition Part 3
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 0xa790b0f311d8b1f5728bea0a2520cf6de63a7454e720f2fd5098bb74e8c75e74. 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/ITB221600052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb38707dece6c54c7a14eb40af144b78395716e0c54e4093f5373b8b724eb9c5. 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/NLS761600509.
Killing Scum - DJ Promo Meets Shaolin Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef0fd1a1d507d413025bca3bec2edca1a3053ff0c59131032429cb651e827d56. 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/NLS761600511.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b3bc4ec9c893a9169fdc5445301e0ca693ba6b831b50f238ad89bf3ede83b3c. 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/NLS761600513.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0926b0878512e57e583f162085bb06696bbba5889f3f2b06c4e9d25a00640929. 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/NLE801600753.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6a9bdde3904514c14eb12f508f83182e82f19985399f654043311320e7b52ff. 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/NLE801616023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x189bfa54fc64aa15ec93697cf4f5f0402917fd478ed3d062f67f290ff93897f2. 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/NLS761600515.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77da842eea64516a1cc01f735f772e0a5b13f664b7bbe8b282afa4d70aec769b. 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/NLCY30803006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13caedb19364a53b2250cc8ddb851b388afad0f772d0fb3ccf3135b83019438d. 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/NLE800610105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9192cce22deb1767d9a66c63f329023eabf92eddbf280d9eea0f2587ce7dd7c1. 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/NLE801600750.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad190b6ad5ba82e94f7093986dcb6cb936886a6069ce71dfba9d06c2891f024c. 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/NLS761600517.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecd65abc9b60c981a26db6bce55f9610991ef199331bb871cddeb77c1fe4cf4f. 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/NLE801616024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x514db8361f3b591f9f2d7f88b66e29b6c80ea2d2e136565914afd99614463219. 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/NLS760600142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x363e855fa39f5d12782dfd46144e104a1154bf0b0b5afd7273d90b27c9bc15ba. 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/NLS760600141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf90d4a0ad300c2f5f1bf90cc941bf48c90ff2b2bf84460909189d25363bedae. 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/NLE801600752.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cd43c324ef1eb043821720eb7b63bf6d8ddfeb013fd3e3bed92decb5a28a0cb. 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/NLE801600754.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa5aad9b6b33bbb99dd48146cf60beb3961965999f706e337eb4d9993b93bd88. 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/NLS761600519.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7d762d74ea9692b9fb792c023029e6ee1ab85ee5d9d68e0c53896b3e81058df. 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/NLLB81600032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x007818d773a72781de7fccc960946d59029772af50eaa9028f6f427f354f5e0f. 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/NLLB81600031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1274d29aab8b5a28e81116b0c02d826c6662f6bb0137c2fb376ef78bbcf04735. 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/NLS241500442.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8b56ca3fb05379dac2ea0f874b30c0942574217fa17586c3ef83c1555e20272. 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/ITD131800087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28db7d08a2b1659da8c1430f9200f207d03ffdf5790395cab8022fe40206ea2b. 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/NLH2L1700107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7c961de715e386f7e2a989d1806ec5b00a70446726866e50493f74d173dbb66. 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/BEB681700107.
Harmony of Hardcore - The Myths of The Ultimate Hardcore Feeling 2014 Anthem
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b2eaec3fa98268ee8ca04f3c16aba592d64fd5c9b2adcdf3e26fa79535bca9a. 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/NLS161100520.
10 Years of Glory (Official E-Mission 2017 OST)
Gloria 1996 (E-Mission Old School Area OST) - Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d99a4495a432e885069b47eec9c2d8bb9e98eb4bc887b9483829e2f5fb8b1df. 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/ITD131700182.