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 0x212aa97fdeb8e55bc8aca94ae0d5d06cc6a2f751e59b9dd671534b2e711504b4. 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/c599c59c-2649-4fee-8038-9fc37143d630.json and https://artists.proofprofile.net/proofs/artist/c599c59c-2649-4fee-8038-9fc37143d630.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 0x70ccba77f489fde5874899cecaec8b9fe212b4207ff421ab72d1d260899bfd2d. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T08:44:41Z), 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/FRX871568877.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44330bdb8df75b7a1cbbb84e82d87bd19fae933544e93853893ea7c8eb0faa1b. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T16:10:20Z), 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/FRX871568878.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94c2dda78363d5dcc8e2bd008bbe2ba640b6415919d0623e8672e33c51d447a6. Chain 2 (Bitcoin): anchored in block 957919 (2026-07-13T23:58:45Z), 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/FRX871568884.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca1c24df6f5abfdf77c405a8404592a8e689193aeaf152c16a15a2c94025a80a. 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/USQY51730645.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e47c2ed8459bbe2984515d48c4de8bc74039b9a7c0a9920bc02c2eeb350341b. 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/USQY51730646.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85461eaa21aa6e892d757de1e822c46b8f73125e3b3af18d3f66cf027760c918. 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/USQY51730647.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cb2e872df770c8db9047303bcb0adbc3ac3709ec8dc564b2396815bb28be4c0. 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/USQY51730648.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x411dceaabf06fece821ae063ce713e2b21f3783df9a567e0d9d3161f0b42202c. 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/USA2P1809399.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe05bb0bf6dced476281955438f030a44e55fc891d8cba1c1c58abe675cd6c6b4. 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/USA2P1809401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb9c3e729519c9013af92b9e3f13b48be30f0ae1283da039198774d49a4fd473. 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/USA2P1809405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9d532cba3af4cd1cea63f987f52666ba8d9639e71d5710ba5b1b75c42f1ff4c. 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/USA2P1809408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9d532cba3af4cd1cea63f987f52666ba8d9639e71d5710ba5b1b75c42f1ff4c. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/USA2P1809408.
Bubble Universe (Compiled by Emiel & Giuseppe)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab6352def42ed023fcd7081f524e852fc58ad1248bc41a96318b15f098302613. 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/DKL9A1900009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac8d107783c4a5cdee767f4f3f1819cfc11db29c60e91b35db8ad359d925166e. 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/USA2P1683815.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd92fa98798b495b913afb5b6e211e0b7e678ea34fbbed0a56be7724491218936. 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/USA2P1945250.
Technicolor Dream Goat (Argonik,Kabayun Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52b66e03b790d5ed336781039f3c1da24b12c78df7e919a57b68dc9d9c10d2c8. 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/USA2P2321767.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x916f0212c3142f44b464ad225f12d255e006a5ab8247c9fe5d15d905104e98c0. 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/USA2P1650357.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b5cfa6cce9222b24472fedb4d78dbf35d3d7eeca4848e6bb5e15e670585af5b. 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/GBLV61626514.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29e813d393a171589baacba5997a4e1939168cd09e1e91a5381e209db44417bb. 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/GBKQU2278165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd44235a6ebf15fa03770191aa9de36466051dd67b695362893458a6c52fbe60f. 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/USA2P2417311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e354b6800b9eafcefd776e1dc07662c5feaa544e1571981b3627a8fdd109a89. 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/USQY51432089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25f25fc75c445878e7b4d1e13c3aab3c5f6abf4476f4704c93c1a2d1c7bd6143. 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/FR6V81913871.