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 0xff0157e58a47cf30e371285ab73e2a103208b1137c77877dbb38c3f47b813d82. 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/cebae74b-bf9f-4573-8d93-132ad06b2d4e.json and https://artists.proofprofile.net/proofs/artist/cebae74b-bf9f-4573-8d93-132ad06b2d4e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
De la Nada Venimos y Hacia ella Nos Dirigimos de Cabeza
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 0x16edad135a69df8604fbb7281652d76b5c054e6ac746e202b2924909601d65b1. Chain 2 (Bitcoin): anchored in block 958091 (2026-07-15T03:17:03Z), 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/GBSMU3510630.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d02220f38dea2038844ea4d306a55b09b6c9626cc05d764988844b55a75181e. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/GBSMU3510631.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa53e7b488fa47182927d79de89ed49ae212c732293d80a6383e6df65d7a1997b. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/GBSMU3510681.
No les Ladréis a los Perros Que Luego Cogen Acento de Fuera
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bef19996211437589784d3276d4298a895cf74d7af08a8c63aa323169ccc828. Chain 2 (Bitcoin): anchored in block 957766 (2026-07-12T22:25:04Z), 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/GBSMU3510694.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfc6fd8baddcd64a74b457fddf40a5cf09da6cc9bc706a9db74ad2d0ef73c0d5. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/GBSMU3510702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c8a16955d1b8d31dfe80ae16369d4bbe7cb5840c0c75d72a8bedb7bd378b159. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T05:02:37Z), 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/GBSMU3609604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa54d54969adf3fe533a32a4ed294c7ddf67052ba7529d0698a487535f3063805. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T07:00:36Z), 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/GBSMU3609607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefcb5e7a384a66cc9c1551981726dbadcd97febabf74f5506b9ad723b17fd581. Chain 2 (Bitcoin): anchored in block 959109 (2026-07-22T07:21:40Z), 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/GBSMU3609608.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc89d0e8a6f24037dfcad906ac013de85449f0d9c9da726dbf975bb09c5ae3e01. Chain 2 (Bitcoin): anchored in block 958087 (2026-07-15T02:56:49Z), 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/GBSMU3609610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93bfcc58ff68611254203a7143b297cbea48587dfef938e85711070c2e5f8fac. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T15:22:58Z), 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/GBSMU3609614.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a4d00cae262d02f98817679b170376e7af6016276e93c9216003d94741cc621. 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/GBSMU3609679.