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 0x2c1c6731e26cc1afebe5d2168f402303928647d6ba55cbd4faa3d4cfabd3b23a. 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/638c16f3-1661-4e74-adcb-f5ef38f30f49.json and https://artists.proofprofile.net/proofs/artist/638c16f3-1661-4e74-adcb-f5ef38f30f49.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 0x79c82104b00d65a68d918cff83e0adffba757ab0890369b5fd907f783a07e7b6. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USWB19902813.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x663b5498391b5ac1669fbd9706a0a65c2f51f0e31681442259cb4db1c751eba2. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USWB19904152.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76c59d630f67062066c1aa4909e1b543159dccbef84781532829ea992408638e. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USWB10101898.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55112520608744810665a075d151486295a52f42983e8601831e11e89b263122. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USWB10101899.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3128466cf67ef64e3dc2406289ac04113431770b838426997e0970e6d310f8a. 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/USWB10101900.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f77413fa1a30965667576e087e4457613ea122ef13d9f5c23764909e194cc65. 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/USWB19901125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85ab85493bc8767cd25e8ffba3430d589a24d963ca5f8fa8a2ee137d8cb88d31. 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/USWB19901128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e67029411e51942b8cec64a18da0c4d66210b008a9bfd5c1a4914aa44788356. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USWB19901129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0712e973ea2fa56cebfc4c744a9ec6f6bd97d1c141e695f2aba5e62ef954912d. 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/USWB19901130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd482c9a51c24e493867695dc06e9ad7bcb37a6504df3db0c76fa6b5e79f1d61. 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/USAR18300139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf51de4be3ac0a2618385024d0cb9935654f98035a461c9714fa7f604a794de1. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USME30900273.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9189a11079989b8d09bd52c767a269f3651b40758ac8d07b8580d54826cb7ef. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USA371103309.
80s Darkwave, Goth, New Wave, Synth Pop & Death Rock
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x784724ee026587e6bed5d46eb88ba235a5d1f3741b58a733e1c5319fab7969da. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/USA561051680.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x864762ba50f26eb34831677f11c3678fbee65e596fd217668ab4535a94a68944. 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/USWB19400019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc75382c5d4c274a0915655f9ac4c9a2c5f91148749468e0525903e6a2a097e55. 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/USV351488540.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x667c40f30a45da4b118ff0a2b8a82998c3eea3f7b6aafcf3e29c3afe97d5aedb. 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/USWB19900731.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09010d3994b2fadf40846c8e42f4e8602a0b4f2898b2755dc875e63e6db7b51f. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/USV351488513.
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 0xa3e8a854be389082f6ceb6b0b9c4281c79a4ecc6a96a95167db9d25052f0b2ca. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/USV351488530.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x628140f85d411d26c234e6dbb4a07462dc0ebd0e9e474fd9276cccbadfc7c037. 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/USA561051693.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd08388163325448092821904cc5d542edead09ed6e1308225c3838c00c282e29. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), 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/GBCST9927401.