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 0x81180b0b505bae8e1739d99c12b05bbc23a16285f872d62109d547231ec2a473. Chain 2 (Bitcoin): anchored in block 953842 (2026-06-15T22:22:30Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fe5a833d-7d4b-464f-a66f-8274fbc23999.json and https://artists.proofprofile.net/proofs/artist/fe5a833d-7d4b-464f-a66f-8274fbc23999.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
MetalRose 2012 Featuring Monlaferte *English Edition*
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 0x79eee1596fdb976a42eb1f18f491bb362b283a53c667ac017687d9fb4c73b481. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T16:29:34Z), 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/TCABI1203323.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33384a2cf32e7a6ef7b6eaa571518968d5c15861bb1f1e5d0a5c6745522ddcfc. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T16:17:35Z), 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/TCABI1203324.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c05ca40b2f44995350178fa3f87be1dc0aaa31b9c3591e298f189a58ac106a5. 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/TCABT1401585.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x251d06d1c0143cadf74f760766e09727455cd2fefdc60d7b8c2fee09fe15cb7c. Chain 2 (Bitcoin): anchored in block 959096 (2026-07-22T06:36:11Z), 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/TCABT1401588.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9e3d87106efb8bf3278b62f9a305c5293466f505f1b086787f6d2efa166f70d. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/TCABT1401599.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c232b65cc33a4a9e6ea959c0571b68275c9685edd0d5b1b62c6f0517196a38b. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/TCACS1629580.
Veronica, La Cortesana del Infierno (Live At Circo Volador 2017)