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 0xe14216e03b2f70bce148dc6b4d3a2ad4ed73641400b68ddd6cb2b4c49e13d61f. 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/3fed2e95-dbc1-4266-8f37-c2c8e7c5727c.json and https://artists.proofprofile.net/proofs/artist/3fed2e95-dbc1-4266-8f37-c2c8e7c5727c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Canción del Bosque Mágico de Atemporalia
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 0x159f2e4633e9b31cb38ba45868b940323fb442ddb7294c47d51957f8264a667a. Chain 2 (Bitcoin): anchored in block 958362 (2026-07-17T04:32:48Z), 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/USCGJ2091888.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa3c66339e1d8a3458f64a25a268310b912ab3c49283d0b46e9805569b4bfa1e. 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/USCGJ2091889.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23aec6e6a5111f57b52e6c1504df73c5af6e007718270845b298c87247db1d09. 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/USCGJ2091890.
Canción de los Animales del Bosque Mágico de Atemporalia
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70e31f564a0e557d2597b3ede2605f0a669af20f123a541c18ae6be50ce773a6. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/USCGJ2091891.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x092ef822dd9d44e809edf5888ad9c4f77859ce84c0479ff1fb2f9cffbea79c48. Chain 2 (Bitcoin): anchored in block 958350 (2026-07-17T04:39:10Z), 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/USCGJ2091892.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fab52525925347a8417d5c0334370f5c401f123c3f24d52ad7110836bf8e64b. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/USCGJ2091893.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed8402f4ac1a38f2f4ec2089de5fb4aace6ba60ecf665ca13ce0692c4fbf6dab. 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/USCGJ2091895.