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 0xbaa9bc3968786424f997cda188c0b768cbd3602ab7ec54adc2ef9a34444cfffb. 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/3d26942d-ba2c-46d9-9734-68f05a1f83f8.json and https://artists.proofprofile.net/proofs/artist/3d26942d-ba2c-46d9-9734-68f05a1f83f8.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 0xf17bc97b8eb704ce8d149339d68ec461036958cb535a8cf4467937c16e87a5c0. 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/TCJPB2451550.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8fb9a2ee3594ed77776baee5a3e7077eef0a7ecfaa304cb1097d5c07d593ca5. 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/TCJPT2285638.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3951cd8957cf3755670a51cd7c867dff77b3f20426e79f47be5a36fb6a79af54. 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/TCJPT2285649.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a15d4a27efbcbf154ae481d5d25627eeaa25ae1c3a57e1c2dd18c50262bd2e8. Chain 2 (Bitcoin): anchored in block 959163 (2026-07-22T21:00:25Z), 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/TCJPT2285651.
Takeover (feat. Lil Roar, BENXNI, TAHITI & SERI)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87dd35328d3b7e4b32823b25cf59e6ef83e977ae5a3023694fb9eebc5a098e66. 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/TCJPZ2470967.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc790d3789aef74452d8415ad57bb6df61e5b1315785bd845dc5d9698e97f8aba. 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/QZTB32477799.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51b306dd716e822e9eeb0a1a2cb58a177646da986ca0e0864df080548d6676b0. 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/QZTB32477800.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5fe18d7796cc02f49e5715815bbe422f12c00707e0c8f854165acddad2f5b7e. 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/QZTB32477801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82a836b617f976c2e60d5674e153041f7fe6094d88c63a58de945ffbdba3f715. 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/QZTB32477802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe77099aecdbfc1891fe4cf98c2ab0fd172633986ddd6eba59bf753f1f20b5ddc. 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/QZTB32477803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16bf171216e3cec8dd23e1a8a215481ca9fa3b15b3e8a645be897c4721a93cbe. 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/QZTB32477804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25e48c16ba106644c65978bf6007ca12676af58aa8b7c4de22f61a350555e992. 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/QZTB32477805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8be34fbacb27adb5fe7d17015a23c312e7c0365c615cae7ca452e3c5170adf6e. 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/QZTB32477806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x172a4f6d3ee9f58626a9af8864282db45266a2c93ec07dfae09611c2f401e109. 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/TCJPR2294366.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ec50dca347b1fba97257c55104065691552fae84637499fcda830e792808995. 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/JPP302500011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc355d0a916f566e995ee1ee0aebeaa28079d91bfe508bfcb4bf48c9836961a5. 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/TCJPB2403969.
Scratch the Anthem!!! - vol. 1 (Remix Collection)