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 0x30dc358c18db0d62bc848aa1b7ef5a73e6e8d55eebf809a4d4c38a3af803247f. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/92158411-5f72-442c-a929-d4b95001a4a0.json and https://artists.proofprofile.net/proofs/artist/92158411-5f72-442c-a929-d4b95001a4a0.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 0x7d200554008e436949cf319b39bdd3c86ba2c6766cec76c0e7a9b88fdca4bf83. Chain 2 (Bitcoin): anchored in block 958363 (2026-07-17T04:34:46Z), 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/NL2VN2200113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4554ed74a14f7cc0835e8709fb89f6018d7c0ef9b71a76662f049808344c9e2. 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/DETE42400003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a911fd3084b2da64c63dc4f3375d833cff93243efdf05c7e96535ecc197ef69. 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/NLE712400494.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bf79fe69187ddc355c67c06a42737ef22417cef30a745caa70690204c7cf610. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T08:39:15Z), 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/DETE42500021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8f45be069b60faa06a7d38331c668f68507b44ed91b3d585da7b689e7f498cc. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/US83Z2525146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55af7a7c372fddc709366f9537145e7ccc4d392eca72aa3909d81a12586cbca1. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/US83Z2525148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x458a627ebae199b83d3fe2b38daebb4072bb223c4bbe9b7fa2d7672fb898d161. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/US83Z2525150.
ASOT 1163 - A State of Trance Episode 1163 [Including Live at F1 Mexican Grand Prix 2018 (Mexico City, Mexico) [Highlights]]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44050828cc57bef52eb65ccabb73b11b1063f7cc3b0bf911d3e3d885f51267c0. 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/NLF712401320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf090a57edb98676c5e7f461ac914ebfd5cca2a5dba11bdaa2815c55bfefdbdbc. 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/DETE42400009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8491909181ca4eea3c709e93e0aba0b24b266554ca3b897c158ea28673833091. 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/DETE42400010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5800b09884a4665e682229016466292dcebc9db3d34983946a9f19b07bac0cc. 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/US83Z2307559.
FSOE 911 - Future Sound Of Egypt Episode 911
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7378f809e6e080bb337fadb0ad08c941b8c27d486458049d0b5f6637fdd6dc30. 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/UKRMQ2500573.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a911fd3084b2da64c63dc4f3375d833cff93243efdf05c7e96535ecc197ef69. 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/NLE712400494.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c8b799eee0fad5bd4f0ecde33483e43c34a161e661971aeb0105213745700ab. 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/NLE712500350.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e713f87eee5521df5d7e4cc6596b90d428c6b86d7614307b994048d31b55298. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/NLE712500348.