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 0x53efcf2ada89980152cac1f72fb101d75c1f803c3a4076b78fd65f870c5050fb. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6011c552-1211-4321-92fa-1611731619a3.json and https://artists.proofprofile.net/proofs/artist/6011c552-1211-4321-92fa-1611731619a3.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 0x3164da0e41d1d320f4a7f6977c31ccab06651d2c85ad8864b0d436be36968235. 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/GBBFT9200047.
Latin Dancing Rhythms (Salsa, Merengue, Bachata, Reggaeton)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x706b1fa079553416075d44e4b7757f3731f58036dfe40635b762d080dd1fa646. 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/GBBFT0200062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffd267e5e895377792f7ad7772920bf50cfe3c2c448deaeccc0ddf3ee0982e13. 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/CAM460702373.
Ultimate Oldies: Latin Music Hits, Vol. 2
Ultimate Oldies: Latin Music Hits, Vol. 1
30 Salsas Colombianas Pegaditas: Lo Nuevo y Lo Mejor
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde0ccca5999bca5c5d56233dfd5581d6a42ebc2ed2770cf2d0ae71671e7d231f. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/USALH0500341.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f639a23e8a6a64ef30debca962f65566766fa3aca152bb21fb5ffa7aa304f93. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/USALH0601023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37fb7b00392ac01de1a479d3df9d894a43e3d8da000aeef40e8ac6b7ac99eecf. 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/USALH0601021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fb170aabce4db65e2e8ab472b4bfd62fa8ab607cb5fdf239809aad2b90efdbb. 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/USALH0500342.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66a333ed6a53f8239cc9d807b1f1306b70b2f6e5eb77fa81cd3fe8f2ff5cc695. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/ITA610508551.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf337abdd9977f96f5cb2d119c76bfcc6d02fd45769cfac0bfc3c2f6e80b7474f. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/ITA610508559.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5dc13b7a86cb1a9cd554cc29ba887f29728e83ed939a8ddeea2def3c63e50a72. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/ITA610508599.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf525ffc95a8373d8dce241d0feeb66addd42f3096c8ada571c56805603ea64f. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/ITA610508577.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfe6d9ce92d8ecd985f6fade18df4c4ed20a80cf0cd2babc9508b4ff8b160980. Chain 2 (Bitcoin): anchored in block 957065 (2026-07-07T16:43:21Z), 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/ITA610508530.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb1eec307f3a1c5639f79b0a8f5f8a8056d6cc868929751c9e1ce8568f314d26. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/ITA610407586.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x815cd3578be7eafc1c471f037bcc3351393a288bbad9781f9b74e2079387732c. 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/ITA610307999.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x972541fd9d38e54561013489de21effe3477e3190db01090417c4464d7515464. 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/ITA610307487.
30 Salsas Pegaditas Lo Nuevo y Lo Mejor 2010
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f5c76756d0f0afd49dd4ae7def292365cbb4b7c5d54b77ce92251e3c9a34997. 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/USALH0500352.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf0f43ac72133e3ad785b924b173ecb3148327c587a2054a586e3092b512e9db. 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/USALH0500349.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd774d6f4b513fc72ae4e996b790f824e4766f5f756654814bb0e340fdc7e83d2. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/USALH0500356.