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 0xad72f07a512732c0a550972baee1db88c10907ebf347a6034dde375659fcff2b. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/744c3e66-0e78-4797-b3b4-bef1721dc1e1.json and https://artists.proofprofile.net/proofs/artist/744c3e66-0e78-4797-b3b4-bef1721dc1e1.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 0x0d42801d596c0a6d749d4aeee12b2018f3b24170b734c2fa6eea4005fc1c8495. 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/QZFZ61971782.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8986b5ff8337435f620d6e397b3d4b7d105cfbb1c97b6460e060b1e1d31f3f7e. 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/GBCPZ2322379.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf51d009f0e4c765f6bac54243e1e75dec90dc5ae70a80fcd97030191ad585006. 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/GBAYE2300492.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0961605f7212bb37c172909ee5194ec17a8b36c3d6486dae85dac1f4f584667a. 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/GBAYE2300142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0961605f7212bb37c172909ee5194ec17a8b36c3d6486dae85dac1f4f584667a. 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/GBAYE2300142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24a5ead9e3e57fa3c56a9143270d1a366d196d33682456db3734e5179877dc29. 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/GBAYE2200566.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72136932e5bc7e171159c96704ed37ace7310e62882462622a1ecda9a39d8d2c. 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/QMRSZ2201127.
The Dark (feat. Bklava) [Extended Version]
The Dark (feat. Bklava) - Extended Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89a5ece4c5c92ce6b44e4b289c0bce5d8cce2ed57b7e9767032fb03237b1c0c1. 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/GBAYE2200015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x175ba00f6020d71a2ebffd813741494b04e368a6e3605128d62608eef0069192. 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/GBAYE2200014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x833c6a82a31e283efba58b4ef13240bc984e27829259cf6e8e880ae6583a668c. Chain 2 (Bitcoin): anchored in block 959132 (2026-07-22T13:20:46Z), 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/UKN6K2003239.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59e83486cccc34526123be72f0b7d1b708f0e332be0289108d7d37aa162c8881. 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/UKN6K2003241.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8eb6d26bba85530f50a1d6f58331a0c953b7c6079513d37fd11975bb62507091. 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/AUDCB1701801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4c3c3468c01454f4e0510b10a6344262e98197bc3d847e872bae560ca6b6fb9. 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/AUDCB1701713.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0deed44f91dca948ec00430a4b15740661fce45408bb9cd613580c79c31f5817. 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/GBAYE2100056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4efa6a02991ac10dd6b9ac125b2e810a6a31380dc9f6ee9fac3a1e086ebae946. 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/GBAYE2100545.
Bayside (10 Years Of Eats Everything Remix)
Bayside - 10 Years Of Eats Everything Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3451d27622ec3c337029a503534857f03f104b9dac4f2b3ed7d298c06d3d394. 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/GBAYE2100120.
Bayside - 10 Years Of Eats Everything Extended Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc18c87cbbcc6eba980e18863c4ec1515961e9fc506e1c434e867540ad1c5dc0. 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/GBAYE2100121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90e3463f508a6592d1445a9ebe39290ac04e1f6104df857b42d5ef257d20007b. 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/QZHN62045124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x763c2cb91f3b2d51c80db78ea4272adced550a75a2effd6d1971e800bea502bf. 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/QM42K2038464.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x175f1ef4a36b67e097af2324ae78685c0d38227b8863bfabaf02beaccb4db192. 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/QZHN71929056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5b401c86532ce6939ebbbd51a8747b3641cfd68874e65f7a718b0a8c119412d. 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/QZHN61997852.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd96ab183ddfcd359d3af57cb9548b23ea6a56c47fd6f51bb1e04e582580cc2fa. 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/QZHN61997853.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26450285126329882e91783d9d7dd2b4e3883f52f9dd15fe7fc78bb1180f4a33. 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/QZFZ61975606.