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 0x7ec2fc53f23858856ed7a68024801de773933e6b4fc6c58181d2e9e8ee7dba9e. 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/021093f0-4a2c-4a57-88e9-2295a2af7da9.json and https://artists.proofprofile.net/proofs/artist/021093f0-4a2c-4a57-88e9-2295a2af7da9.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 0xd75f9bc53a1ca90b88c28ef96f8dc494f76207d1b0c2aa2e80ef0aabafca9e36. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QZHN91936044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7d183b3fcd7a30e191fb99d16dd3b17979d5c1d8bcd2e751cb1c1a06e302729. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QZHN91936048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad53639860bf644ab4bb81ab759dfdef34df141c2297d4cfee340845861ea809. Chain 2 (Bitcoin): anchored in block 958246 (2026-07-16T05:55:09Z), 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/QZHN91936052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c6ce8f50d09982041a8dbbd6562365b79e59ca4090cfc3c5b2ab56694c23cc6. Chain 2 (Bitcoin): anchored in block 958798 (2026-07-20T02:53:59Z), 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/QZDA62090597.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6663e0049d14a8adc6c87242149af91550d6f97f1e378c9fdbc327ee12c88bc4. Chain 2 (Bitcoin): anchored in block 957735 (2026-07-12T17:47:43Z), 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/QZES72019637.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb567a8f949536ea5d3e88ea7d0b57ebdc406295529381b758532f34977c88e3. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-16T01:18:23Z), 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/QZES72019641.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc39ee26c9c39a2d1dec212d46a6df6ad252a6615a281dcedb41254f96a643fc1. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/QZES72019643.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf7ed18797b61fd99cdbcf83d62f1f187720d723cd6d0a73010af31d697e3d5d. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T09:16:54Z), 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/QZES72019644.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4285ae8d14e0e5d7b06dd4bf7aac25e0f2601bfe401e62ed1e8afffd5eb05da7. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/QZES72019645.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x844bf39f016045df612b93e59a1e8bd6a17af2b1b0a153db8bd9a9069f8de1dd. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/QZES72019646.
fever dream (feat. mxmtoon) [DJ KK Remix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5efce98e28b6e5bf5e9ded1170dc2565351be7f462d432ba2d2a04de28695301. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/QZHNB2050613.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40908732ed44b7eade9bd70ec251159900342446cc48753072b1fb5c3a559cd8. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T02:22:58Z), 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/QZK6M2025102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2d4b488b9ee7ca724ab6158c7883bca090324c8ebc2abf0a2ee150cd243ff07. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:10:19Z), 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/QZMEN2087997.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8372aecadcb16ca00b5581700a5d4dba123bfb8031bdfdd9958185ad787d38d1. 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/QZPLR2045803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a6d59fec24844e40315b1f8afdd886ed9309c6484836180b1ce6f3d6041346e. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QZFZ22150460.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c35e27ab0e7fae1e3a2a296b4e7cb91fc63da1f83dd28c0a8744c3e0ccff66b. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/QZFZ62137825.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb78f4f6319b8840d3066e1c866629ab3678fbb4970c8ba5ef3a7a84ec705a40f. 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/QZFZ72167980.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd56beab12dbc25b9b9e7b0e7598c7fb5f3d8d1db77b42c6b9e8e311321000eef. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/QZDA52126910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90bfcea6b57e55d3a25234a3469a4035e835739186eddb550988e9317b8b9111. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/QZHN52143894.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x018aa3cf73c51284f238c6c587ef5cf62a5c0f650efb31fe0006cac7a790f83d. Chain 2 (Bitcoin): anchored in block 957744 (2026-07-12T19:15:44Z), 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/QZHNA2174081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe365ab6f609df86d9d28ec23e7da317665587d8cd23f969d6e546db9d97089fe. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/QZHNC2145589.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27f1e470cfe2b17b86051e9123c7e242b9079ca7b596d9a84abb057c90900cbe. Chain 2 (Bitcoin): anchored in block 957741 (2026-07-12T18:30:59Z), 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/QZK6P2102467.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bbe6c4f398b2a15b8b8e2aee7d675691ca3f5c487e4a2f579dee486ae91fd8d. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T03:32:44Z), 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/QZMEN2133216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf424c8a368b77af039c6d560a0141574259e97e0db1350d8d82d1b23d5d345fd. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QZHN82288233.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe49ad00c3c848e3d4dfe3a1e148b9cb7c87fde470efbee5998c319cc427fc47d. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/QZPLS2240209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d0e321f287846f7c1209987b2507d1819e107b7f7f9fc85cd6c463dabe24663. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T15:36:35Z), 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/QZFYY2390921.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe29f9731791bba16410553b1ea2c166b637e3de6e054c7c17e3664691e8dc0a6. Chain 2 (Bitcoin): anchored in block 957852 (2026-07-13T11:25:45Z), 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/QZES62375638.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55d8c3439aadf606ae615ab86bef99a788b99280783dc5faac329cf546fbf334. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/QZHN62389051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x511a84fcd4a2d0295b40f8e0d8c1a011e472ab6076bcce753f14bab192a0416b. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/QZMER2318740.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb412cd3ca9b6b26b41f10c8f9d9a000aa914be73021a8d9a5d26a4cdaa19fd30. Chain 2 (Bitcoin): anchored in block 958404 (2026-07-17T11:34:58Z), 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/QZNWT2353791.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90067e9167c95da49fb33265962f4b00ad6e28b3cd0bb5483d845f1b236bdd06. Chain 2 (Bitcoin): anchored in block 958554 (2026-07-18T13:17:01Z), 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/QZRP52378746.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3475d45a09441fcedc5ab8b9450968f338746c899b91ff6330743e296027b6da. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/QZTB32342100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90659ba7b42f8f4b342daf005c163eb417f13820452ad25f1952ed2fd5dee778. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T02:49:15Z), 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/QT3F92593252.