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 0x68b5395c3277757f7e70736c3646007bda9a67e53166868c72a238b30795034e. 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/5414a797-9958-4ef2-911e-f2c9310d29ae.json and https://artists.proofprofile.net/proofs/artist/5414a797-9958-4ef2-911e-f2c9310d29ae.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 0x186db71e9ba248dc4b23f0b9c2bec17fafab2a3f98c5a4651a1143b4e0905aea. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QM42K2267388.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1709636886635c1bf27bf352907dde5b3e67bbc9e53d7864a6b6165fdfc10863. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/QZMHP2076053.
Lucha: Despierta tu naturaleza (Banda Sonora Original)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12dec83e2bf83c68da473bfacf6a7050eec140e327898de72bb6a3f2dfa26bc2. Chain 2 (Bitcoin): anchored in block 956742 (2026-07-05T05:07:15Z), 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/USWD12433890.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c4d89607c318c9f25bd1f9c36a23520596bbbf3c26824355d7bcb7de892aec2. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/USWD12433914.
Voy - (De la Playa Version)[Simón Mejía Remix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd06808041dec41bdd4a2ee56497bae9ebdc5a765e695b3ae701ba43f2a0bef1d. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/USSD11600321.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4416bc989ff811686d585e585136b7edeaf9a00b99da78ecf1c03a499c45edd6. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QM4TX2285261.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14a3290167617fce23b22d25d2628ef2db39ceb0b460beae8c8de1dbf20f3432. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/QM4TX2285265.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c548e61ca10f8c91f7974995085aca8ead200878aec51071437b029dd5e018c. Chain 2 (Bitcoin): anchored in block 960497 (2026-08-01T02:22:04Z), 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/QM4TX2285269.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c21f680aef08f2a5319745856323b9bb61702df9adfc5906bdcfb561eff1bab. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/QM4TX2285272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d8cc3c3bf5dce1866901e89b11f041a0658a2a954a8a54647b5ef6b4e3560e1. 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/USA2P1919814.
Sans Toi - Sierra Remix (Simón Mejía - Bomba Estéreo Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4259a13ea32e2cdf7bf846abfdc35f0f865f56005d58aa01a74490a6d6d0499. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/FR6P11300280.
Para Transcribir (LUNA) - Simón Mejía Remix
Para Transcribir (LUNA) [Simón Mejía Remix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5729313fd51553807a571301dfd236b02f2ec825e52d55616cfc121ccb0d074c. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/USEP42135001.
Los Niños Perdidos (Banda Sonora del Documental de Netflix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1af3a782557a394d70d5c71d4f0fc64cb2de550545a54e3f02d26c8ef4c29145. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QZ8BZ2411370.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60c0da6f3dd275ca0015532ac481a083ad8d963ca21218f0ce6c984d2d02b736. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QZPKV2505905.