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 0xd7f536b9aa3d691738e66aa6b9f203d704f2565510290021749c9295e512725a. 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/ad12a3f9-aa65-430a-af26-68c91d4c74fb.json and https://artists.proofprofile.net/proofs/artist/ad12a3f9-aa65-430a-af26-68c91d4c74fb.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 0x9d928023fc34286501f018be01cfbd071b311a30e6e6047d0187e41778a67dbc. Chain 2 (Bitcoin): anchored in block 958142 (2026-07-15T12:33:01Z), 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/QZDQH1828874.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94922beaec7675c6fdca3b20ec136b371d366f748e0816fc62a6bfdf347c5a03. Chain 2 (Bitcoin): anchored in block 958738 (2026-07-19T15:54:36Z), 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/QZDQH1828889.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77cef94167ac1d448f49f8b5ec02bdd30391224098257b158c0a3cf32df66951. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/QZDQH1828840.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1be019dbc314980b2c3ab7f0ab945c1cfff0395751e5c809422167a21e55053. Chain 2 (Bitcoin): anchored in block 958399 (2026-07-17T10:39:51Z), 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/QZGLS2249464.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b85eea2d7b0e4da54b39c556844d0117082e1616a42bf6b479dd4a6eb2508ef. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/QZGLS2249465.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa48f4b4afda063dc287fc3725ca6d453d68f52c5bdf6d29bced8ade1c70d44e4. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T12:42:44Z), 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/QZGLS2249473.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc952c7b2c7ac9c355cd014e2940959db006df5432ed803c39706c53e754003f4. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/QZGLS2249469.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73992677852be2b1860f70196296d8d0b23fbec6b1e3239c6ef639980e2d2eea. Chain 2 (Bitcoin): anchored in block 958430 (2026-07-17T15:33:28Z), 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/QZHZ32224100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c58f59c104cabbaf32f9b31717c04994ca47ea3dc7d9b94f7b0d7e73dd0ba33. Chain 2 (Bitcoin): anchored in block 959024 (2026-07-21T15:31:18Z), 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/QZHZ32224090.
Zapateando Con..La Brazza Norteña (Norteño)
Popurri Hermosillo: Marisol / El Marranon / Trajecito Rojo / Por Ser Bonita / La Víbora Peligrosa
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb421a2fb25aa7a7573d5454ff876a542fd816b670bdb088776aa34a2a2651a8e. Chain 2 (Bitcoin): anchored in block 958920 (2026-07-20T18:14:22Z), 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/QZGLS2371895.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa68f6be1d01a4f710eb577c2dacc54c5977649c544fdf9df16a62fe279510cc1. 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/QZNJX2330210.
Viva Mexico! Puro Ritmo Norteño (Norteño) (Mariachi)
Palomas Que Andan Volando & la Mini Mini
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3afc0d4e8adf7b2b5c3060bae75ca78aee5af7ed4f65ab18f80be62305cde6e1. Chain 2 (Bitcoin): anchored in block 958378 (2026-07-17T06:45:39Z), 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/QZGLM2466141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x571f05fb6d6637cb8c0690022c70f1553aa101507eec1c2e7b3df1502de28da4. Chain 2 (Bitcoin): anchored in block 959052 (2026-07-21T22:41:59Z), 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/QZGLM2466133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf02cdaf8f90ceca4657c0afce2355aaedc52c1270197453d2d15adde19c24162. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QZGLM2466145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45ce6116c1abf9a7cf732e9aa72659769823bc05f8967863d03693d96488368a. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/QZGLM2506260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92e79023ad8f6ca17184256eba4313be8f24b29a39cbfba80ddaee6946365a7e. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/QZTVM2538549.