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 0x2046f8e15c9caa622af2423514c0bac0c272fe3ee1804cce8c8aa36db3a682d9. 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/89cc2507-f3f5-440c-a568-1b9946d516fd.json and https://artists.proofprofile.net/proofs/artist/89cc2507-f3f5-440c-a568-1b9946d516fd.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 0xd3d1dbe92cd55d581c82288d0cdbf3aed3a91fbe9e21542c248039b6ade31381. Chain 2 (Bitcoin): anchored in block 957540 (2026-07-11T08:19:50Z), 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/QM6N21909090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9713eeed17691817cfeaaa46d34093f68794e9e08b7067d94a46f34c57804167. Chain 2 (Bitcoin): anchored in block 958390 (2026-07-17T09:35:49Z), 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/QM6N21909091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65bbf2569580e257153b8d7b4e7df97f7c45d0bc4653f3bbe999a5e413774b35. Chain 2 (Bitcoin): anchored in block 957874 (2026-07-13T15:43:57Z), 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/QM6N21909092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97ef5dc93a8c2981fcbf60ad55d1cb44a5944f6f5cc9c38d84dd30690ebe0105. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QM6N21909093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05a5d7adb2b554bdc7036362e02f64fbad7d288dbc79bfce830c0821f5dd4927. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/QM6N21909095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68956b2594f52ebd95f2f908be5b52557ea11343107a7190273ad8c7e3acbc3f. Chain 2 (Bitcoin): anchored in block 958322 (2026-07-16T23:17:17Z), 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/QM6N21909096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf15acf29ac81cb6df1a8f1f7abd22b8be06301170103c5ba7810e4e767aa98c1. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QM6N21909097.
Como el Agua en los Esteros (En Vivo en Teatro del Lago)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f99541abf9a5767bceb07ab433478137bd7c35ee66df637df3a4fccd2d6ccff. 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/ES71G2129655.
Aguila Sideral (En Vivo en Teatro del Lago)
Como Agüita de Cascada (En Vivo en Teatro del Lago)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ed1977080e33a7c5eaf491381a9aff344165e7bc2680af1fc1c81e761226e31. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T02:49:15Z), 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/ES71G2125299.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd92d838fb1824a5bfb8087d2c9d9d5413e01d37ffcca7bdd9dccf95e7c02c367. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T03:05:37Z), 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/QM4TW2214335.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x591eaa186deabec858761ace0da453ed10a6536f42d729b6f0e662992552f573. 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/ES71G2320292.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x591eaa186deabec858761ace0da453ed10a6536f42d729b6f0e662992552f573. 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/ES71G2320292.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54d7d2a8bacdaf1bec6cd1c920f7cb9d85aec45326f734bfc535c17c5fc4ecf1. 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/ES71G2318320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde9ba87584834e65bd9df75f387212302e70775b926fd1b8979270553a3d9d0e. 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/ES71G2324967.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8174c69a48994abf91c7f9e5ceadc9ea572ec88dd9d3d1192995262d99245693. 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/ES71G2324966.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47624fa2562997213f5d9ca504a1ecfad8c77648f7481bb33f5b2e98781fdd26. 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/ES71G2324969.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09f5956b909ab36a16cdd6ba2d67b992eeeaa3d8866a1760e2f74d1a887baea4. 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/ES71G2324968.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee32a65c648b47f1333a08a850f6466ad0c101b448cc356095e898e1b995f7cc. 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/ES71G2324970.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x098ecc0637b23d6396fffc6928cd8001a7ee1a0a223e9966e22c10efb8b1a078. 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/ES71G2324971.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x147cadf20e44b07bdc9c2a9c9a6f2233aeacae4c2eafa4558287b6fac0ff359f. 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/ES71G2320290.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9beabf5ef34aa58f810884e96f071c14ce0ce1ed04ca3689504016b48daced0. 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/ES71G2324972.