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 0x874f189f35d630ad00bd0fa92add081048d6a94ffc7db5178394b7406ad135a3. 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/6609bde1-7663-4bc6-b6f2-3469bf94d2fb.json and https://artists.proofprofile.net/proofs/artist/6609bde1-7663-4bc6-b6f2-3469bf94d2fb.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 0xa47df59d1c7b341b96fd6fee36e91896395a84f84b911243202d1ae77ab36480. 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/ITBGD2100118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x700f57decf06cbceb9dc3e2e80484aed6ddaf9508fffbb1b0fee9666017b585c. 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/GBKQU2451330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfc428820934a2ae73c18927d47cd981e335a185ebeef21698846fd55ee927bb. 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/CA5KR2443216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x228afbbf762f193b69371ed5f3221d61dfa0e612457e796748dded62e4049127. 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/CA5KR2428892.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ebea94e17dab38fc478fb417beefb7234160b6d554d8ef1a281a6cf115fd729. 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/CA5KR2421047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8eba60238fea5b6ba7ee2f30b8d040ff8e9fe37d383e1ae7f976f8ca848bf533. 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/CA5KR2413567.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x614a875d8968b6f99b51032672b235f35f97e0f6fb81b1e6f8acbbc298dd1743. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/DEY472377151.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8d01bb0dd788cb574610c03105564cf593eb0e6da2c237c410cbaa45be5df91. 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/DEBG52200061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd080ad0c5302cb0c966875ec1267975ad63543d4fa65f39bf8679b57c2d06573. 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/DEBG52200060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8969b2b45eb1ce5904ace20bb8c6c4c8acdc2677eb8841d6ee2b427060f101c. 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/DEBG52200062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb8fed09e5accc2729f495476c353a4b815598e3d4d7a6814bc5dd0f44e696cf. 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/IELPY1900094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38df39bdeb05a154cb2743920c550005a400353bc4d6c2c53c5906bfc3e78cd9. 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/IELPY1900095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc16c540befa9b84ce0c7b6067d6aa3b3535f515964a8f41ee50dd30f57e8e243. 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/GBKQU2256633.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55b9b62f4a821b136b94af95325b33420be18dcd8911b1941a59720177219a62. 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/CA5KR2047050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58a7012e47edfaeb661b83454ef36c03a52d14df5301f8cd5ca3f59a73cea111. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/CA5KR2231440.
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 0xbf8ece6d1afeec14a7ab58af41e09b4867d2da5ae9ec64f7c6145574286d80ce. 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/ITZW52200001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44faeaf4da8ff5f16ce257872496388bf8b4474b4e08bb26b91951ea508bac5b. 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/GBLV62115262.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fdc35a48eb375fdb3c4bc21230a1f485fb3ae187db76c5c707b062f0bff89e9. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/GBLV62115261.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd98247229e106d80e0f45291393a2fef1a52fcc9ac078cacc268ac6f02ac791d. 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/GBKQU2094815.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2adbc236d6ff91bcbab41ef4ce31e1c06245453bdd2692a2f847389d946ae26d. 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/UKR6V2070504.
Mental Expansion (Sisko Electrofanatik Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa16729318b5a79ec8c878ada2e6504d163be8ebfb68ed6076982b2eedf7fc63d. 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/ITB841900142.