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 0xb5bd98f10bdd1cf4551c2ce0f8420f61a05f291677798ccb4333fd51382cd10f. Chain 2 (Bitcoin): anchored in block 953817 (2026-06-15T18:10:31Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fb83e1ed-f2a9-4299-a9e5-35576d1131e7.json and https://artists.proofprofile.net/proofs/artist/fb83e1ed-f2a9-4299-a9e5-35576d1131e7.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 0xade53162683227321fc9a7e0d6c7dd4bff7d837ada5b8b99251b98f03678c371. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T08:14:15Z), 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/QZNWQ2294182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c8effb29197121cb3aaa1f06d9d2c4667e8b49b519f6e2587a1ad5b02b6652e. Chain 2 (Bitcoin): anchored in block 959080 (2026-07-22T00:07:05Z), 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/QZTB62253021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76f22d7a14a3d001a8725e3ffd51405f45f08af011bfb5d19a9971c6ba85107d. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T08:41:42Z), 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/QZTB62253023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51aed142f09dbe19754e72a766988e902690751ce9b2a7267ef8ad5b5ce6aa7b. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T15:48:23Z), 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/QZTB62253030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa444d1a1ac9540a08bc2e3bb0a5e248ca865c77d74d9acf70caadae2af5bb581. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/QZTB62253031.
Cordero y León (Canto al Cordero / YAHWEH se Manifestará / Que Ruja el León) [Live]
Cordero y León (Canto al Cordero / YAHWEH se Manifestará / Que Ruja el León) - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44b6a32f9d08398ba38593aeadee3179d9d32654b432c260efec8f68c186e820. Chain 2 (Bitcoin): anchored in block 958357 (2026-07-17T03:33:42Z), 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/QZFYY2326485.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9db367e168c48f7cf49c276893c8cd3f8e6cace930b828bc365abbe8ae8960a0. 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/QZTAX2326398.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fdd0a4cf6e21ed5a955285c541bce8564f1a72d7ab0fa97451a8ffb9bb1d357. 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/QZDA42431465.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb445c2e78334dc18ae11466c0bd11ee46a0e0382f0a281b2130e9166476e52ad. Chain 2 (Bitcoin): anchored in block 958838 (2026-07-20T07:01:21Z), 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/QZDA42431466.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1306af90af32d91ef1c9e9c05423dce2aeb815d337d91618d712af77e65b71b5. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/QZDA42431467.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef1285ea4218edecbf15979e52af7863018d28a56dbc83a4bc855f5d403d221e. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/QZDA42431470.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47c3bfa659eab191a101d52ff5d551c8bf4d6ac126d7bbc0c6bcfb52a21b1c21. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T20:12:32Z), 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/QZK6H2413714.
Éxodo 15 | Salmo 150 (Guerreras Cantantes)