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 0xbbc27aa589c3cb2234572af91481f0c1e907c90973b5fa006142abb6875bc8c3. 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/368917b2-6a76-4a20-8b48-a5c05ee3653f.json and https://artists.proofprofile.net/proofs/artist/368917b2-6a76-4a20-8b48-a5c05ee3653f.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 0x6d3ed941a045cda145d60a0c2ad37c213bcf3ac4a84f6b9716a89e4cd82d4cca. 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/QZHN52270325.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x190a16d99e502e694d900a8a5fb9eef4cc34307fdc7e6a2b3928cf9cf4927122. 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/QZWFK2336273.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd7b7163e85f67b90192f4ebb56e0811c352b6a9ad7ef5ee87f2c3630af46960. 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/QZWFK2336274.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0588363cb233bdaad2cc4225b4cdd9a5c7f751a79a9db2bec06ad3bc90c88419. 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/QZWFK2336275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3302bddf73d30c30d355a6673b5d241c64de963ad4f79e314b65a443ec0d0597. 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/QZWFK2336276.
Everyday Feels Like Sunday (Live In Toronto)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0653b96e0a31a126dc1f6a4b79f9f3e5e4cdbe8dd7fb64c39fa7a052be829dab. 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/QZWFK2336277.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a5998b0c114a51556eff5a6d46d2af34db6abb70a65aac03755273b60d7f34d. 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/QZWFK2336278.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3917d9edafaef5e14e78a5615f7ce8ff616a96c891593ab5888e3c58cd7f9f99. 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/QZWFK2336279.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ca83ddb786004db2b161cd8a5a99d38adcb405f695dabb934ef027cbda460d9. 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/QZWFK2336280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c6caa8f7ea80fdcf832b9ed5f698aa45bb53b314837a3ea0aad84c04fda97eb. 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/QZWFK2336281.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01d40d6d5660959b1e96b27d1d842ece51c26a17f1dc32310e26a08ba5b57728. 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/QZWFK2336282.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ed7dd42290d6b533b14346df55c12250dfcad4c278b48ac2b744e303938e971. 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/QZWFK2336283.
Maybe We Could Be a Thing (Live In Toronto)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe36053e825a7c420cba6bdae5485fda6b42879508a768c10ade7eacf5d194177. 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/QZWFK2336284.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1065b8ec65f57859239557c641ac13f68f1209625aa455c4d2f6e1831c8e4f48. 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/QZWFK2336285.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x707543871c32b624b39ca7d32ad9c33c58b984888c009d372a2ec338be4ef3ba. 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/QZWFK2336286.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4953e9199324fdb8295a73e852c2c19dbabb01e198d1418f45ccc63848fbfc4. 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/QZHN62468183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55e338368e86e733df7c80b8cc943b23db9af1ef97038164ac35b0773f393922. 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/QZFZ22443991.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e3a20e7937a8725c46c7c625c2929516be166cb06e8ef095c3dd089e8d363ef. 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/QZWFS2308665.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd764434da17b4495820b1c3ba6541a69fb012d1e54c51f3641c5734948e58731. 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/QZTAY2362347.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefc5bf8e1efb1d9c88244a2c8aec4f597f338f993398cd0fc7cca136929e6e99. 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/QZNWZ2354883.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f232fea584a1c9e6fedd0c58dc85f680487cbf0b68f4ce0c1a8a84e30c58896. 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/QZHN42365327.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09b85c768b8a0ee792e7a987db0d835f718b52109245d7db576fb2ff2a992617. 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/QZES92392948.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x705ea1d6f5269a376250fe7973353973e7599ceb19d1e06255420b7dd84d8b39. 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/QZDA72346138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5889c03197d97dd722cafb1e17aac0d7c6677d51328da06f00b471225954c1d6. 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/QZFZ32393353.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1fbc7980608d8418e6d5e5541434eea675844ecbe37e845f8905e3ca9110046. 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/QZTBA2209184.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc5a3c41550e84f0ca20cce2ffd2d6ef52065c9d0ca3f08e47c42513eb21f6e7. 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/QZRP42210102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b52288215919b4f4ca93513f2976c2a63e21700ea76f043bf2cf89141e67136. 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/QZNWV2291844.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb53aed202733060f89d555c4e159717b6fc27cec977c0168e54cc7b26c0e3712. 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/QZMEM2270105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91e1f72d4360a4428ef958d0629c4cb0fac912439f7be28da3f837612b7a34dd. 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/QZMEN2218057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71af64b0ca2a8de9747c2c521ead40878dd1a3589fb32db93adade230c691e86. 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/QZDA62267834.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35d6557b7d9a105932890f5c5326970b53065e1b6b9b32db19aa6bce7afcda2c. 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/QZDA42226370.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x311fe5531a386ec26da3ccaa588005b75ad173eef91332166110b3224ad87853. 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/QZPLR2140337.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c134b7f905786606f866bb2ae5a85958a60b1a4b051f2f45b4b5d4deaf12076. 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/QZK6J2125726.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1c51f97ebe982fe5365a65cd2eb89dd9962e8943c160b254f8a38b807e4067b. 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/QZHN72118750.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cdeedf26ec6d230d7d119da5ff8205e4d6b7bf10f02b0dbc4fa37bd84e90563. 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/QZDA42138032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2a694938090d08ff16c37b1bce6089a1d370944b22769d455d88972f9c4d6eb. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-16T23:28:04Z), 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/QZFZ32140223.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f50c7d23ea5dbcf822e3c0dc22d3ad0fed5e550a8313822649c90073646b4ca. 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/QZDA42138033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6d00c89c34239e9714845de314d2d5290821c1c2c818318df580b3768a288e3. 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/QZK6J2053886.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x392fc5ffc456a11fd0bedb3ca41342f5f11aff18f7e31229196cc543f1960147. 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/QZDA82058232.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x654924c6765414469afe883963fd7091aeac3d1111375c2ea154e0771c8a1ed1. 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/QZFYX2056386.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf55cd1c365669d32891a5614c8e4d1dc003f5845eed597723769726e83138c77. 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/QZHNB1987179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5eb1a49125bf01ea0db8e39bc68e9787a35af35236e6278bb244ac1f9ba8eb26. 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/TCAEJ1972752.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18745fddcd2d1752444177a63fa60480f4e854881977ecb60594ee4bba924ab8. 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/TCAEF1939827.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa332c1f710499c6d19bb472ae79c588400e960854df89567ba757a18e334941b. 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/TCAEF1939843.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x692c815a239101af7ff9212f53b96db0f29eaf7601a4235f0ab6293bfe05ecc8. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/TCAEF1939855.
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 0x2a5343cefe3e50e335efed3806f5a4bbd74ea08c9a23b4943b9ee86b8992d7aa. 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/TCAEB1938653.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b89966307b76597f68066f408bfbed5124825232312a9807afe6d38e083516d. 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/TCADX1843495.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29bd3485f85eee8d6b6a5c53c1cb420340c4f4ea26529b41e519d8fcd05f8630. 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/TCADS1871848.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8b009a4bc17d18eec97940d6a7352523e912a29133c087b49988e405346755b. 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/TCACX1732995.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86089cff30d63d6bb544141fde1b5172dc4c4544e5c6c733cced8ea2fae381a9. 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/TCACM1679501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5061aa7d807ba9cf946ef3810f95950ee7a4ecabb2e92953d262dde2d989e1fc. 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/TCACK1535592.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd35e9cb501b027a516dd005c1d35fa7c3be61ee4dfde1f7ef975f9ae871a29f. 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/TCACI1583570.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51f7bac61ce6d8d9434041d185fc6ba777e5541d982f138e004bd8c267a1632a. 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/TCADC1798266.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x590133bd380591da2080671236e3abbcb16c43a9d5f2737a0b3063313c58fe91. 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/TCADC1798268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c1fa65685848ad3ad38013acee9bcc9e6cd4fbf5f94df2327401d75caa10c6a. 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/TCADC1798269.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10de482b81708519c172f2ec195149597e30c5d5e1ff9ff7b48d9a2513865e4b. 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/TCADC1798486.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a9a2c9bf6fb1af3e388dbea659f99f88ad5f33288e84cc7217404c7ac6389a6. Chain 2 (Bitcoin): anchored in block 957041 (2026-07-07T13:25:45Z), 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/TCADC1798271.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc814bb3fa99471e2e791a72cbb86ad15b7f9a107a9f6901221699b89e2348e0f. 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/TCADC1798272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf477ae49011903933d56cf240a96c5321bf7c50cf8bc1c6c6e241a081afb942. 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/TCADC1798274.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe73d5ce3795609db9d4b8f9e1946e4f7951638faa3bfe2c0f106e94e2b2fbfa9. 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/TCADC1798276.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20ba1dd800d43fcec6fe13f38a11c7013c1f888d5ea2803e7cd1d5adbd26a3fe. 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/TCADC1798282.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d655274d0d344149948e25e0cc5ea2318339b269e67218885da9dd7ca4dc414. 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/TCADC1798285.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa6dadbda83a902e35b98b64c56ab90b678685a6e9a75f9435099b287b6befcf. 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/QZWFN2441532.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc69366bcaeb510b20d8c429ee98d89f43e6ea534e45bfd9d4ef600c2dcc694e. 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/QZTAX2408435.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c4f159be0c2ceab66dcd2e690d5cf2456eba259021752fda592ae1891a7ae95. 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/QZPLS2473826.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57a9bbb2408b5aa356fc1c69272127a5b9e108dbdfb1cfb0b0a07dbf89c711d0. 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/QZTAU2240626.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9dfd4b29a745c7dd55d4cae660c5c247450a5e204ab4ece4dbb79a31b0f7165. 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/QZTAU2240627.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a67cdf4a79f233149762e0e44abc421116cb6893e28bfd9cebbe171b31d2fc6. 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/QZTAU2240628.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30579110d27274884b37e6cb2da9081eaa4e4094b7144f71d379ccf22e1b4019. 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/QZNWT2584832.