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 0xc554f68b6795f1dc8cbba4c94552e24f6bcdf991b7290962655da135d482ee50. 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/285247fa-847e-474e-9672-1cc7b5892936.json and https://artists.proofprofile.net/proofs/artist/285247fa-847e-474e-9672-1cc7b5892936.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 0x0638217bdd904c58baf5aba7189972bdc1ca099f8cecf26790477c3823a56cb1. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/RUAH62426337.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dc9c62f6f55dfff73aa8da6b150d2009f6448eb073e543b10fc02a25a3e375e. 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/RUAH62426338.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x209aa79f53cfd65d75af1bb92801990db23bde27e13d0a055257bae1c6fc2454. Chain 2 (Bitcoin): anchored in block 958122 (2026-07-15T08:02:29Z), 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/RUAH62426339.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98265c988ade2b1280d797bd2292621995694f4033f1ec08d30366de4582f053. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T10:48:33Z), 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/RUAH62426340.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5be49c556bae45cda96b22ed7f12cbd7f2220b89ff80397af7413a78ce9eb163. 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/RUAH62426341.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd1b323708656e570869e757d70e87abcb9a47ab579d128351a94476063afdfe. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/RUAH62426342.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13e0d0ce5e75878a63076c02e46cd8e91a632f93fc709cddf77b3b48ae33039e. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-17T00:01:33Z), 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/RUAH62426343.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fcc076650bdc0034fb754406a037d3f876865ae6bafe7122203e627f58c25a8. 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/RUAH62426344.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd492437312335e56a53486e3773ef9c0be415436a996293e951dae1e086e4c15. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/RUAH62426352.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7dba31447ba319f2fc2362a5970ffc2fab406c3193e0a573f5f0df74459bbd6a. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-17T00:08:47Z), 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/RUAH62426353.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb376e9b30369877030e89794eb630cfb2de7bb8918d54c70dca603c014ab2d87. Chain 2 (Bitcoin): anchored in block 958839 (2026-07-20T07:01:59Z), 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/RUAH62426359.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21967878778a5a24660c7dfd330f58ac6e4e1b9ef64b6f7acafbe1152ee1bbf4. 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/QZDFP2082990.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa194d287f2534596e6d4402997d3e840877d8d6b968b18e33c33e832816491a1. 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/FRX282490432.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4290d5379b9e12e420cac23c5972c921cba0f961c37412b714f60bcc70d0b34a. 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/RUB732066975.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cb191ec030845cf4e61ddd1a62f6ea76cd9f86c7921bcbf03003c4ce7b469af. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/RUB732066977.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34a96fbb2f9eb7b45278950477abda5333276a4defb54f7f785f60b0cafb1e64. 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/RUB732066979.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x906bb54500730b4af9918240fe61f43d2f384ac9cb1fd1cb237212c3fae9ffff. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/RUB732066981.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e589b24c1dedbe7583cd9cd841700d889ecb1d9f26063a98a15bb5603a76885. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/RUB732066983.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94db37dec3846ae2811f8262047f0ff37906eeeb5a966a9a6d48a40b9b33a71e. 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/RUB732066985.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb544d67f7078ad0de7b0d20f7b6ecfd3158eaf1b4815bf9b15a5ca93b0d3fa9. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/RUB732066987.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6400690b677d908f7c2cd4cea40e9c0c8cbd84582ee5d564e4f93d843ffa86f0. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/RUB732066989.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0632e173a11608ed95b99969ccb0a79289f0aadf3df7b96541117c65a5b43818. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/RUB732066991.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7dbe88fc71441822671ab492056ef4dbcc667f90460ae25b55b2dba3434aa959. 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/RUB732066993.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3eb451abe048232bbeacc57cdbe173130abccd60521b87c0c978b85bda51ca26. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/RUB732066995.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc815b4d01bf859599fa619409e4b7f6022371ef5e3c0f9c1c36a1f0ec7213f7e. 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/RUB732066997.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x045cd6ca8c03749e9980d71575045a3b2ba9d11262d5f86fc3a6054eba986784. 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/RUB732066999.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x316309f7853297857e5b32fd0b3e485bc8acafa34718520081a4bc6498c987e1. 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/RUB732067001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf318ad9a0b096cf7c438461232fa41424be8e2619b0bb2d96328f7bcf81d02ff. 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/RUB732067003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb29b4c1469025d050cfbe89f851ab04320d569c76d8345728fcd783db35e59d. 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/RUB732067005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b4214eda7b946e6ba962029bfd6c50753530d659e34077d979b13e92d2acc1c. 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/RUB732067007.