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 0xb9d7ca5106091ae9f77a36139167d8a00c9c1bb202af309de32b4990bcccdd8f. 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/d215dc25-8654-4286-ba6f-2c5a1acf54bc.json and https://artists.proofprofile.net/proofs/artist/d215dc25-8654-4286-ba6f-2c5a1acf54bc.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 0x08b2c83bb5c53f6ab8fb2b99af2fd4e5ede1b032f28fa088eb7a85783709ba1d. 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/QZTAX2241107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef64306981e8b6af52634f570c7384d9db32f68ae452252d72cf43b21129bfe4. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/NL6XB2400011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeeb704638d42a6e6f4724097eff064054104e866589424ded64cf70b790739b6. 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/QZTAU2387531.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc41f76572981e58b24fe79da97b4820641078d350282bcdcb556c3ef2cc9866c. 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/DEY472375867.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4169ab6c4174a22c22cdd5b36f1868c90c5023ab2c9cf2293b15cd0f04c1ec2. 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/QZTBA2212324.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08b2c83bb5c53f6ab8fb2b99af2fd4e5ede1b032f28fa088eb7a85783709ba1d. 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/QZTAX2241107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0978b68c89e4949011e1de4a6e0f6450d9194a544f6081173e297a925a276353. Chain 2 (Bitcoin): anchored in block 958041 (2026-07-14T18:13:17Z), 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/QZHNA2204904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08f7bb216d844bcbdb1765bce0742a81740095ae7ba3e8b874a1dc97a02e5ce0. 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/QZMEN2120686.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7debfcfa7dcaff103f876492b800769f248d8c57ea3ca7d4fb4f1893dbb4440. 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/QZK6Q2114376.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1091db13855421aee424a8077debeed0d0fdfd3df84fa8f6f385a0c9defbf066. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/QZK6Q2114379.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4c8bff799e4566b94fa87380063f2b8f9d10c7485dd996c3c0fcb0f088cf295. 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/QZES62103963.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x546354eb0aed201dc6147c3fa5c78f938fa20c7a89ec9dbcbf008e6929e4ba53. Chain 2 (Bitcoin): anchored in block 957032 (2026-07-07T11:43:09Z), 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/QZES62103964.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78c9e2138f07bc92126ce5947ae260796099631b9afce2008d24a3e1689a96a5. 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/QZDA62109043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7288bdff30771d95873b772e8939a16b3c77bc297298e8e916112a41bae99445. 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/QZFZ62113069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x756c72187949b7d58d3d8a8568a14b762484c503dc128b05670036333530751e. 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/QZFYW2158490.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71b258ff114ac09af5d6831c5eae9fee64ae1410096d37075ea6f48571c7f256. 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/UKACT2010748.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc19ab149c8198a5a060754bcfa55c18f6a701949f2dce6b071ff67be6df13a54. 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/UKACT2010749.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc1a459fc9c12450c3a765c6cda0dde20116ca6326b9139debe9651343fd9101. 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/QZFZ72038553.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12f2083b63620d8ccf9ffc5d705878d741c881753db94d103ff9d9fcad991780. 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/QZDA52061858.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x453f04d8b43a562d05a51f7850fad7dccb4b68d69cea7ef112bac946b4167897. 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/NLP431900769.
Distorted Reality - Mitch de Klein Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b1c50d1a860e43b9c22470bc33b52241d8363b3d72bfbacd30b5018c83066ca. 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/NLP431900771.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabbaf8ac2b889caa914f7af7f822c6b4d1da8e297b7e0cea52b279893637b37d. 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/QZK6N1941860.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77418088b6867dcb563db55642c7f3a4bb9116564464859b0ea746b4b87eda33. 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/QZK6N1941861.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5214f0a94c095022905514707b76afb888ead0370cd9362a90232edbc0232bb. 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/USLZJ1948811.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacbd582652a456cec7a43291a5ca4420fdecaa1298a081c0adda69f113920557. 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/QZPLR2498824.