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 0xeae18863c47ad944878894962c03e5d8d7e5de5b881f6323f8c97fa0ea1a0c6e. 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/50b40686-2da2-4bb9-b631-7219e71b28bb.json and https://artists.proofprofile.net/proofs/artist/50b40686-2da2-4bb9-b631-7219e71b28bb.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 0xcba097eb32f827da4275823264ac6e8d88f18eac89c9fdaf5186912d14d3f0c2. 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/CH7812040648.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb90a5e2adbc52723f59f48cf6d6b7cbe33363aadf03de6bc29c73e79e61f708d. 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/USLD91723281.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7553c5a08a498df458bb63ae7eec96ec58b1de34da03b4c6819e0baee81f2468. Chain 2 (Bitcoin): anchored in block 960222 (2026-07-30T07:48:45Z), 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/USLD91723280.
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 0x5a8782173f7204b0f1461d8e91630a78309038507e22eed58623bada140efa2e. 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/CA5KR1945145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc1bf01e58a112318c01266ed52a306ca6a20050c2a41bb43a9026815466a7a1. 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/NLZ541900796.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d726e78c697c8c52f3e4073716e50bb446e8e9de8e8c6008a9e71f05e5f170e. 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/TCAEF1944308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1bf22261f8cc1e33dfb85ffec0f8bb50e0a9ed56d5cfe0ce033a443dd5e50ad. 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/TCADL1805626.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb67499e42980a38b30b69842cb7ade4c457206d2cfc5fdab33bc9ba4777755c7. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/USLD91710446.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a2c0a3ca01738127a6ffd2e81428d9a3a5c4d5f3425a49e39046250a2135eed. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), 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/USLD91710447.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x586e8c306f9db345460e97e63c8e3c283b85f15b5b0898ed7b8e1c4010fe45df. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/USLD91700023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc99fc9cd4af02ff32d80dbd5f5800906bd176a37eea9abf379abf3a373966f8. 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/USLD90817478.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee19a9bc1afdf111d49f9f7815925f3cfc94ed71abedc441fa91579b5c3f553e. 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/USLD90816702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34d1825e21af024be2dd07d87a16f511dbd630add3d5c2599300df5517a8b687. 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/USLD90816703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3787fb0202f0e3582670de8297b15fff8864d27975e648bfd396e9ce94a1dfae. 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/USLD90816704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe70500b88eca715d0a6f8b4fd4c498033ef284c10b0ce1d0f6b9486da1c30f05. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/USLD90816701.
Bass House Anthems: Best of 2019 (Presented by Spinnin' Records)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc1bf01e58a112318c01266ed52a306ca6a20050c2a41bb43a9026815466a7a1. 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/NLZ541900796.
Bang (feat. Dances With White Girls) - ANGELZ Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54dcc8747510672b8ab052b0974a11afc4b071dacada0d3d561372be40295baf. 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/USDM31915507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x586838596c7b5fe43d16563385d879b566b2b1b6d4190cd1cc6cc5878663f7a0. Chain 2 (Bitcoin): anchored in block 960105 (2026-07-29T12:35:17Z), 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/QMUY42100120.