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 0x666c28428e2ceb43a21b166ede4fe44cbdb230164f43e9fd4131682cc98f1d02. Chain 2 (Bitcoin): anchored in block 953596 (2026-06-14T06:21:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0878248a-ca9c-4535-930d-80870e2af8fd.json and https://artists.proofprofile.net/proofs/artist/0878248a-ca9c-4535-930d-80870e2af8fd.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 0xb59845564eaa27b751376a21c3f7894bae0bd54cce04f26a38833841f08b847b. 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/QM3DF2263692.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc06bde4d3e9ead84450982d44e71afd6832bc633dd15f59a7a091e8349ca72a. 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/QM3DF2263686.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70ac4bcc76d1b75c82271faab9808380eb084500e99a7f37381b6a59c46bcd45. Chain 2 (Bitcoin): anchored in block 957026 (2026-07-07T11:02:43Z), 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/QM3DF2263689.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdad26387d04236548f32f281ce1f21ee79a0314a98c197954d9f99101985d519. 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/QM3DF2263690.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9380b04bfd85def3d22e8ee590d33619ef7f33e025da91600ef93faadc682692. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/QM3DF2263693.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fc7afdc4ff829675362c950b9ec796567fb28b9f25173e45b7d2593448a3264. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/QM3DF2263688.
Auditorio Nacional de Costa Rica (En Vivo)
Medley Himnos: Exaltado Sea Dios / Te Amo Rey / En la Cruz / Mi Corazón Te Entona la Canción / Maravillas Él Ha Hecho / A Dios Sea la Gloria - En Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffac17a6a26cd4368599a5a3f6934a3c7830206d0c3090c3a0550c7a06e3a5f8. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/USDY42288090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1597d82e92615144415dfffde855c634f0d0959ada3f5b5aa9953557a231d5a5. 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/USCGJ2111803.
Himnos: Yo Me Rindo a El / Doxología / Sublime Gracia / Prefiero a Cristo - En Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbcede7e74a72449e2b3e42bd46b399f8f180e6bc89ced65517756950ab5f0e4. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/USCGJ2111802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1130edde2e54b57797240fd797e0ca16092715c20ea658bc4de5d910bff54b7d. 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/USHM81895622.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fda6d63c4dbd0544047bc14f88c1d4fa639f7a446756b1d22605c605a72e406. 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/USHM81895623.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3be3552115adebedc77787dbc0ac4c9d89ddb1caa7a8453d2c2fcd561c7d83f5. 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/USHM81895624.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x902b8639a2c6b50428ba786bd5b879a0e5955932dbea04892b1c6c1baca20021. 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/USHM81895625.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17a2163fb4b47c916c3b5b731c0515e7a65adce50c7777859142c010105e3cc4. 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/USHM81895627.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5081889f507efef19cc7c4c16aaf4e84c808ce4b34a7f40872bdff3a7ce0e900. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/USHM81895626.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcaf46e39318e09b14d0ee7b347316f26d5255cb7ec187ee4a0e58bd8c922783f. 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/USHM91789490.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69cd4bd5e0a97c53007bd27438882e7505ae12333049e41a58dec253495212d0. 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/USHM91789491.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x906eac78e57c8d68813fbb6ed929498a50203b53dce0ce18f639852e5f856985. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/USHM91789494.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x863bd3ab2c51978301015525e90e6eabbcedca5710c94df11c198ad1fc4c9c3d. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/USHM91789498.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f640abf2be1f9e28b6273f4c42446cb5b3f4381278658a2e4ecb6012245dc2d. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/US3DF2427121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70ac4bcc76d1b75c82271faab9808380eb084500e99a7f37381b6a59c46bcd45. 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/QM3DF2263689.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33fe102567c1951bcddd938831dadac9c1f6fce82a948be020bb01679b6588a3. 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/GBWUL2316307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9c410b7ac95f0467c62337b3d04e92ffc9bfec45522426c026a42dc96463bb0. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/GBWUL2316352.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e9cb0e08470e37fdcbbebdc912234cde3178c4e1ee8bfa616f242d8375eaa55. 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/QM4TW2398522.