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 0xaeeff41a13b2e79f9181f0b9af1a91b790f4585e3641aea974bd9752c6fb351b. Chain 2 (Bitcoin): anchored in block 953746 (2026-06-15T05:25:34Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a279a4c3-eca4-41bd-a72a-5ae667f11668.json and https://artists.proofprofile.net/proofs/artist/a279a4c3-eca4-41bd-a72a-5ae667f11668.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Memorias de Bacanal Bendición y Genocidio
MEMORIAS DE BACANAL, BENDICIÓN Y GENOCIDIO
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 0xd566a48e75ae4f52f2862c284e132e64f78777f4b4fa91eaa517b454e32b7ccd. 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/QZTBC2484907.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f1159287e67fecb91689c5b3ff3f0762a4e55188c71f190cd731c4808fe32d0. 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/QZTBC2484908.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc55e598ed4c6a0a2ed3f66d375a9857e088f8d4f1aa611f06514858b608b1701. Chain 2 (Bitcoin): anchored in block 958322 (2026-07-16T20:44:14Z), 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/QZTBC2484911.
LAS MALAS COSTUMBRES DE UNA LATINOAMÉRICA DECADENTE VOL.1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce8d463a66a90dfd3fe37c7ad554f93b8105c47cddbdfd0281bc8e1db8668de9. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/QZTBC2484929.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55a6f5b54804e9e7f8196900001b8f8563503de283c3b32a7c425f694df4ffa9. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QZTBC2484931.
Las Malas Costumbres de una Latinoamerica Decadente, Vol. 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82a6c96ca60e98aaaafbe3769589d4657dfed3e23070832ae90cbc6ac102c9cc. Chain 2 (Bitcoin): anchored in block 958083 (2026-07-15T01:50:31Z), 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/QZTBD2443783.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ba900a3ffc54134c51469dd9ed6f797852a5f3242ac3f7970aa29ff3a1320a1. Chain 2 (Bitcoin): anchored in block 959008 (2026-07-21T13:14:05Z), 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/QZTBD2443784.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x769e2b19410973cde35192d0c9071d73b2e29a9388b71f5ea74a6324d31e7685. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/QZTBD2443786.