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 0xaf2f58a0ea1da770c90a269074c82a475d49fa47adf9203c9a22f16b26ca7ffc. 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/e6b5782d-f872-4e1d-9161-b59476c28a9c.json and https://artists.proofprofile.net/proofs/artist/e6b5782d-f872-4e1d-9161-b59476c28a9c.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 0xd69035eea8d3ca95cbdb11750ca762a5809e65ac90f8e2399f8c4d05b4bb6911. 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/GBKPL1951617.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20189cc4549c9bd5f18b528fbfdca966cadee2daa6c267825158429883b5142c. 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/CA6D22300404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3bbda1fac691671012369ae2520556678d7002c1d1fab5bcc2d6f487ffd7dc9. 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/CA5KR2377672.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2911b838b0f117e5d0a7e8d1d929f8b85e62a437670951598a085fe0b47c5fea. 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/TCAGA2230619.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x533effa163bf3bd5193a933a22f65b5d826aa4712847a9a18bffa228d5ba5a1c. 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/TCAFI2185562.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce7e0939b4d31bb072f5dab7a98b63222a5d1c9e3f00c52967caaa76cfc73f83. 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/TCAFI2190395.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80f60ea7aabc0def4e976794840ff2407901b0e629471d6686ab35167d58168d. 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/QZHCR2000029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb13e7de02b29c369a3e30ebfa86dc8709e66bd5dbadd125078503f866bda5e5b. 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/CA5KR2063617.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe190b0b386d8d3d11bea7775cf2175ee5f066b0d2cff696db74a00309bc67673. 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/TCAES2095293.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc18b115540931071852ad979ae09017a40ce52ff6733688d371b5ec46469475d. 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/TCAEO1910703.
Renegades (The FifthGuys & Coffeeshop Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54ae72929762f3eb836b67787427fdbc30514d784127f94895b352dec6ff5ee8. 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/QM42K1996210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x886ec34eefbc590af32acce8923dd8ddb4276742148b2922986e23f607bacba0. 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/TCAEI1937205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafd9578de9fc019f44c14c44f897cd87c91fd9388f01db3a444ec25818bd3f6c. 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/TCAEF1989072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc70744ea61b8613c96d4b1fa5bea19e903cccfec4b63f9ea7c62f3f6feb93755. 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/TCAED1965498.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0781eccf72abc1986230bbbacc327b7d440190782f18adf0e1a6fb30e82dd917. 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/QM24S1904328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38a7988cc40e35e8c803585598115d00e2a9d5eb2e3dcdcd5925aae003313a89. 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/FR96X1856922.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2a8470a3f1efd4efe6b9384820c4576500c6e7b8f52e734bb9d43ecd1a2b06f. 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/USA2P1843380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd2e36fcfac1bda6426f5c5ebdc976a02d33b310683a754f7f2b2312a3bb757f. 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/QM24S1808664.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0522dd4b5669e43acee12ca774b27f3adca9e465d7daca9c997abca974c3b970. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/TCADN1812704.