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 0x3dc045651a6a690553b787daaa80d0352ee47bc37ef7b4d6fa602e6bff47bee7. 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/b6ea526e-40fc-4f57-b877-60b2d8f7f00a.json and https://artists.proofprofile.net/proofs/artist/b6ea526e-40fc-4f57-b877-60b2d8f7f00a.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 0x36e196e389a88e0a2289475eb414af66122489b3819897d7d40c7a1621ad3f6e. 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/NLGM11700537.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36941342e4a7e6072b95a2779a99fb03e8c52591ca43ea22698c21821903755d. 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/NLGM11701718.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c9c1ed317c3c48935e1cf15fdcb726824af29d1bbe1e6aa1f075b243bbaa9b5. 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/NLGM11701719.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ff2bae822cfcbd9345204ecf5a9339521d38e227fa2c1c2e0ae38a2366ceb20. 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/NLGM11701720.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x079d8461aa33514bc4798b16393efb721d1c18cded37189c25ce87110d1dddf4. Chain 2 (Bitcoin): anchored in block 958611 (2026-07-18T21:24:44Z), 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/NLGM11906603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f5fdcdc6eaf2d9da9fb254f8739dd943d904613d49bd4f65a88ef35dd922b57. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/NLGM11906803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ed7f5db40e6e1971a38a3fdffbf0e93afb19751be0db9f9326bc32968419db1. 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/NLGM11907361.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2e2e518e05926e458e504770f3b1eaa005ca9de6bb8850020e7bea83b0fbce9. 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/NLGM11907362.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8e212df788546e8a24fca334b50ef34417a800f41b637d5f6c2ff52adfebce2. 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/NLGM11907366.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x046ddb151517f2ddaabee551e0ab259dba372c02b08986dad55183bac400ff07. 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/NLGM11907368.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x239e25afac4b31ed789e6dceb75be74b6184da05424cf048801de07d475df461. 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/NLGM11906890.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecb6cde0a6a8bad43cb5b263696aeadb43b973e336badf08900f6ab84b5f0b9d. 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/NLGM11907398.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6f723fa72163b380b053fe78f674a4f9720a21184967514923164281b77d3b4. 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/NLGM12037144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b77dee099e65fdd694c8bf15b7bc3a2857801d2ab215ee70cadd09834acaaa4. 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/NLGM12037145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22c6462a7cde70942ed66ad8737d891bcc6aea0fff73b9f442bfb42d9a6725ed. 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/NLGM12037146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7dd20be3a57e10dda3b46f5b43dabfdcfb9d441193a295cd4b6bc5b17a6d0e4b. 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/NLGM12037148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f7d0b21056d6c7def78ed83cccc563685bdbb5b972835fe93a1d8e805a24d5f. 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/NLGM12037152.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6074cab78e792b992c45b6915c5c3246760e3e74d8995c2d780258db6c8117a. 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/NLGM12037155.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2ebe2478b1bf18f9e017108d77c34b2f38f88eacf0c35211df38bab300c5a08. 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/NLGM12037265.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad48d786e05db745dceb8f32d072ae66ce77e4b9c6874637ea8c885a89a714b5. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T20:06:53Z), 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/NLGM12037442.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x742021b7bd0369b868e7ce289c824b0952e16dd0fdc2c7fbd8d4ea65365323c6. 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/NLGM12037443.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18d54acbbe1653f2bad8e89ba99b52d91c78fb1843e10ef7cfd0839e59235b20. 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/NLGM12037446.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb21e16d488d5548686905f707dee085edc966a0853f45c6b6e5b3d2b4be506a. 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/NLGM12037447.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x162fe6b8620cd4b4b74ed27e2476b7c97df73153feca01d74e963230c62775f8. 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/NLGM12037448.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41a86b0e592ca5991a54172f45e14159c39211d2d5ef5c76fbfb1c301f2d8d8c. 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/NLGM12037449.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3edf3aabb1797ac9a555d443b226957b89206b339909612b7d47aff163c9d4dc. 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/NLGM12037451.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80d65ff7a4bd79efb4de8321c72b10fc99cf7572598a45a5b21bcb125d18cb67. 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/NLGM12037453.
Moonlit Meditation (Meditation under the Moon)