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 0x34ef516dbedc9ad69533e5971cf074f53c7c736e885560ae9920bfc4f92efae7. 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/29b79063-d0e1-4cbc-b37f-1f312d3b5497.json and https://artists.proofprofile.net/proofs/artist/29b79063-d0e1-4cbc-b37f-1f312d3b5497.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 0xf79f28676380c79f050922283c2e98f63b98ac952a21dd8438e0a6bdb9e09813. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QMXNF1140011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8927ffa86314efbf7b8803e7fde36b32e71563b706121c8a6951c4e26339817. Chain 2 (Bitcoin): anchored in block 958878 (2026-07-20T12:32:15Z), 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/QMXNF1140004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55a838e275e9b4def91e84e194a852ba46c924476a956cc73c1aba659e061415. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QMXNF1140005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x241cbc7a2a666d3b0887f0afd7313e4517ea396cf7737fbc7e86b2ea393bf909. Chain 2 (Bitcoin): anchored in block 958185 (2026-07-15T18:19:04Z), 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/TCABN1356350.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bd1d16ee4a8f97a2f779f7dc43f7be4db4ba2ff88ea6cc02091732ab3bef988. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/TCABN1356423.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9e9fd498bda97dee037c6bf2b759c1b4986ab1d2ce9cfdb2cc0da8ad4a212bf. Chain 2 (Bitcoin): anchored in block 958134 (2026-07-15T09:14:08Z), 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/TCABN1356425.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb08ec518d309e2329fc9e4ac3ece589891309555e3b719a3e3130b69ef976339. Chain 2 (Bitcoin): anchored in block 958825 (2026-07-20T04:55:29Z), 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/TCABN1356556.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfc296ceb06df30de5978dd25f2de0703a16ae0a3cf3b00a2037dd7898ddf422. Chain 2 (Bitcoin): anchored in block 958969 (2026-07-21T04:58:13Z), 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/TCABN1356718.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30b4f71219e11ec0fa61dd319c734e056bdb809c03f9aff1b486e2a03cda10ae. Chain 2 (Bitcoin): anchored in block 958567 (2026-07-18T15:22:40Z), 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/TCABN1356724.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01f7f8578af3994a5073606a2fa830ad46a0975ae0adb78091d005e2b229c21f. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T17:59:52Z), 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/GBCFB1606201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x021d41e7e095fa2bccde3095b7197fbbbf8f9fc1a9fec71d67d927a997be49da. 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/GBCFB1606210.
Be Somebody (Who Loves) [feat. David Shaw] [Radio Edit]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28fb19df194d2f898f516c0b718bb3c86601400495170db58af9a9e257bdd837. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/USC4R1906892.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fa1b883d1b221efa1f6bae70854aa3631f10a6b50214ef34ac9496ec71e3008. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/USC4R1907098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9679672873b93f2df34696ba76f399bba2b6d99b3419e0ab5c1ee28a64d7cdf. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/USC4R1907099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb891d371105d9f98e746601bdeec04bdffdd271914f774bbb9ccbb9670282dc. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/USC4R1907100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8950a7404a565581726351c6580f25ce56891acb0af96a07dd0c488611c8159. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/USC4R1907101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce442b5411f4289c9dae0bfe9aff7ccad3ea24243fe30767dbbaa45d0d974d3f. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/USC4R1907102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed77f40502dc1c610546ae2adc657f8bc55312fe8f93130d2d318b5b619d1e74. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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/USC4R1907103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe36ca85758055050da58a76b7bc1770cd32871a1ce288a5b9e67255bafb4671e. Chain 2 (Bitcoin): anchored in block 958506 (2026-07-18T06:14:51Z), 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/USC4R1907104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x531bc399e65c4f5edac61abf38178e4c5855358a7d01922ee424d0bc34a5b5ad. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T03:03:40Z), 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/USC4R1907105.