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 0xdeb0435dde99799b9420d3cf659c7696cc16685996ee3e88b2eed366f2daeade. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8e69bcfe-3f0d-46db-8f27-a32cae20db3b.json and https://artists.proofprofile.net/proofs/artist/8e69bcfe-3f0d-46db-8f27-a32cae20db3b.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 0xc8586f5a0a270e9d1d1ff1a9a6f7cad3948edef2fb6bd634830f97f556f07669. Chain 2 (Bitcoin): anchored in block 956383 (2026-07-02T18:11:59Z), 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/USBMS1600021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53d327a65f23e8c4512c7f8d14e2d6030eff892f91b29b3e9b628d03e6b622ad. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/USBMS1600057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53d327a65f23e8c4512c7f8d14e2d6030eff892f91b29b3e9b628d03e6b622ad. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/USBMS1600057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf623b25c23caa040074d13bbf07e06d17560df70dcb11178b7a95cea43da8c3c. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/TCACM1695368.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f70120bff799f608321c434eb13e6947a7dcd91532d65bce461fcd59422fe8b. Chain 2 (Bitcoin): anchored in block 958508 (2026-07-18T06:27:01Z), 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/USBMS1600295.
Tu Te Estas Haciendo la Loca (feat. El Sikocario)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4af7c160891f8d3996522b5284ab96e678db4dc2f25e30576b8ea09ebb6ee78a. 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/TCACY1786802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4af7c160891f8d3996522b5284ab96e678db4dc2f25e30576b8ea09ebb6ee78a. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/TCACY1786802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x830f68153977964406113af5c7de6416e2f07249420406ee5ccf4529fac7c866. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/TCADL1837012.
Super Man Sin Capa (Remix) [feat. Secreto El Famoso Bibero, Lirico En La Casa, Musicologo & Bulova]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa731fc7261903d67a9decb4b61478fdfbaa1475ca7a5a7c3ab264d4e10f26980. Chain 2 (Bitcoin): anchored in block 958363 (2026-07-17T04:34:46Z), 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/USDXS1805661.
Que Tu Quiere (feat. Chimbala & Los Baby One)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7bda02a54c6470fa297753aea2de13c9ece96b8c3d03b2943154738c75cd06f. 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/QZNJV2010735.
Superman Sin Capa (ALEX MILES & DVEZ Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe71b4dc02a8f8352930f114e2d56b4d98a2faf2f494d2f84ad1bb3b55f37ce24. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T12:04:03Z), 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/QZHNC2319866.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe71b4dc02a8f8352930f114e2d56b4d98a2faf2f494d2f84ad1bb3b55f37ce24. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/QZHNC2319866.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c9fd8df1660f1c4975796e5dc592f92745acab46810ce833ba02f08018aa858. Chain 2 (Bitcoin): anchored in block 958882 (2026-07-20T15:36:24Z), 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/QZNJV2305017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf0cf29d7ce727e813e7c3bd89a49fa1fcb74941cd8ed3155cf21764f75d67f6. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T12:02:57Z), 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/QZWFH2492638.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf0cf29d7ce727e813e7c3bd89a49fa1fcb74941cd8ed3155cf21764f75d67f6. 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/QZWFH2492638.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58a048d8ec0c58465f7a3465f76501996277cd0e14362a895b9b117ebb16ee84. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/QZTAZ2530158.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3efb6de4b571292e707c4cfc8ebd872449829e44459952bc51998b45b7111a0b. 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/QZGLM2258336.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9954971547a5845559b3a2ad16f3d3ed95c54058d22c1bc098aa5b56fcda527. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-21T16:29:52Z), 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/QZTLA2524935.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x498602b944e47575a5e0d6be69dc29550643c9a593dd0c3d54a5db3f3b93ccf9. 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/TCADK1713026.
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 0x6377801046c69d5392c578effb4ea98ddd7d260366253f3f27ec2cb41a584e08. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/ES09C2000041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a3340ac72de75a07b8c32c3792dd46c09ef16b890603a7f9b9fbb3b6e688c55. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/BEE202300047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd865b0c76bb88947bae2e176c4f53efb216e8329db62684153d3ea2735d8f5e. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), 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/USDXS1907023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9df3817aca050925d4c91bc5a8c79a5cd7d1021a268220fea468a16e291460cd. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/ITF252000003.