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 0x0be0e6b1dc642521ea7e3920b1acaa640eca6653e05001f5e23137fdbf0c6eb6. 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/68c3f844-c4a6-4a8e-95a6-f2ad0a2f6f1e.json and https://artists.proofprofile.net/proofs/artist/68c3f844-c4a6-4a8e-95a6-f2ad0a2f6f1e.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 0xc2b8ff045d2e119980fc72e94f65459165c6bc1811ca42f77e4f4b090a0b30f6. Chain 2 (Bitcoin): anchored in block 958238 (2026-07-16T04:30:31Z), 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/TCAIC2496497.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8208fa138d2c33e331c0a66f8f92d3a7ac362b3ab62ced64f8145e5d6fc473a. 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/TCAIC2496524.
Nuestro Amor a la Tierra Sea Eterno Agradecimiento | Abia Ayala
Nuestro Amor a La Tierra Sea Eterno Agradecimiento
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x027af581c677c08ff596eee8c3f87bc95d753db2b13703fe43649e44164e6817. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/TCAHP2383704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b7dfac4eeef0f0cd20d2fe3cab2fa3e0b028832853ce94b3f381c6f02222982. Chain 2 (Bitcoin): anchored in block 958907 (2026-07-20T16:17:58Z), 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/TCAHP2383724.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2157986f5dd2dbb195bb6ab9bf9fc022fc01b0d716e4b661da38b2114f5ec1c1. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T12:00:27Z), 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/TCAHP2383729.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa8f0258ec27479a66565f0faa8052fe8500790df704349df9782d11975e0677. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/TCAID2405262.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd38d5ef18d59ff1b3a6d6d77830d25de0a336e367f77ea443307950c83c722fb. 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/TCAID2405306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c27b8ee81fbd8ad23ee8bcec5a58c05fde0f3a37ae83cf5bf58097e94b79ad3. 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/TCAIC2495646.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda2349bc3d7b8d6c538c9c49db837dc160fa6bbe55e9d1a215031eda747c16a3. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/TCAID2495862.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf58767f53c5afba0da20bf44f53dfb4cab027ccc28fcf76755fc96e42fb9ce0. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/TCAIC2495675.
La Fuerza Del Viento En Las Alturas (En Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf17a0c3613291e47fc191aef968fd143850c61bee554fae05565d09ed48efe7a. 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/TCAIE2499190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcea1a6c42bea092439a192407a45e5a6ce2ad96fb5884b0db5490518149038d0. 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/TCAIE2497798.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36bf4eade0ec24833b8e23d151e954d32aab8cad872edc07712edd4b07cdccb0. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/TCAIE2497825.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c9fafa7ce9a1fe11742d0d3ac17a6a1efe3e79c57c992432376fe34400712b6. 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/TCAIE2497842.