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 0xae40bc05b5f57a249eb5a125c944cf7796cbf8e3824886148fb64da6ed68c651. 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/dcf3efe4-47b9-4f4f-b0a1-ac05f27295b5.json and https://artists.proofprofile.net/proofs/artist/dcf3efe4-47b9-4f4f-b0a1-ac05f27295b5.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 0x37a89d05b717cb588892ef03bd2839b115172e2fedc484aadd6f699485987e30. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/FR9W11212041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62df771af5f0e71145a040c51b51721cfcf50dbb27496611003d4b1671d6f303. 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/FR9W11212042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12323fc2c51b6c5217a2e25c1380dc3634e9ca14b95ac5e6fcd57692ad779435. 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/FR9W11212055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a8ffc7190bbb8cb3221e150450d5d6a98d9e30b54a05aee3a71fbdfbbe84db0. 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/FR9W11212058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72df1879b1356b6ceeff4acbe96e959396d6cfa92a882d76cd31af293397eef4. 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/FR5R00908420.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1509a295155ec42d214a858f0d2442fb2beb449d92869479fa38a969388d7a2. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/FR5R00908431.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67fb42ef7ec14950a58719442a99346d757b7cd03b1320699f3be067c5f172c9. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/FR5R00908433.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98b7af6efa9bc50e854dc270a3ec8e20fccf9f453d3f5a14e8d9fb5b3c68dfa7. 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/FR5R00911659.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d87be9e4a5adbe8abb5ada14a522458ceae5f3edc042c938be80c2abcda13db. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-15T22:40:25Z), 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/FR5R00911661.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3213761df41cb52b5c2df28075bccf5c89e18ab1d45e08f5136501610e40c81. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/FR5R00911669.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe9eb5a98149b7c4a16fae97b797d2f1ba34ee793f89fc88bbd14b6ad776c8c4. Chain 2 (Bitcoin): anchored in block 957863 (2026-07-13T14:41:15Z), 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/FR5R00911670.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x291f2a95b0ed997affb087b92726aa5b7834b88c52789ccc9e991b454609565d. 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/FR5R00911671.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c1fc53076420ef532484da4f8594a5f84c9cd09df777b9e263fcd93a35c4f40. 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/FR5R00906806.
Sorta Way (feat. Reks) [cuts by Dj Djaz]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5d94aedd91bc7a965ca735e1d8b390c0539795fbf22deb17c65cf313fda864e. 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/FR6IU1500066.
Effiscienz Time (feat. Dirt Platoon, Fel Sweetenberg, Starvin B, Kimba & Nutso) [cuts by Dj Djaz]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x522569f9b9ad99697c2416db499a76d968b06cfb7a83f6b3389594825b01aa03. 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/FR6IU1500069.
G-Lo (R.I.P.) [feat. G. Dot, Born & Dj Djaz]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9524041e8ee7b3c6a8549581089217916e0908b9e0bf173720b9facf7a7b6efd. 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/FR6IU1500071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd77b42cc484065322c3133fab5dd4e5a60db0cfe99978ce950bb07fbbc4ccd61. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/FR9W11213571.
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 0x1bbf3dfb626e074604d93c420f3cbc43cc54671381551a67e77e90f1eb7c0d13. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/FR6IU1500067.