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 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 0x56d871a82b7b1d72dfd13179bd59ca990e2913f1009e7c355236a7987e471c38. 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/7d8fc59c-c504-4704-9edd-7db3de9e578f.json and https://artists.proofprofile.net/proofs/artist/7d8fc59c-c504-4704-9edd-7db3de9e578f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Put Me in the Ground (feat. Austin Sawyer)
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 0x9fb55091d0875e9db28dbaa856b535bf5affb580ee0d70cf5de4078fb46a4c7b. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/TCADG1741671.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedbc824391726b04387ffee4f59a44578260a1e8201224879f2c7a7ace4d8a04. Chain 2 (Bitcoin): anchored in block 958169 (2026-07-15T16:16:18Z), 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/TCADW1867574.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09c9cb7267061fa6a41751f011a1b9c98bb93b49aa2354d94771415f92b198b0. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/TCAEH1910011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef15678b48f25ae48a2d3fbf9e21eca4aed6ab5b6a336f63d1d62327c1d4977c. Chain 2 (Bitcoin): anchored in block 959096 (2026-07-22T03:48:36Z), 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/TCAEH1913559.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x679144d8d1002516b8f4fbd6558c13b05abb40af79933da560d6b8408e8f10bb. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/TCAEH1913562.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6887b53074ab38ea75219676be7cf413e9603e80b2d584ebbc1db5bea0cf5f6c. 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/TCAEE1918435.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53a53fe3123146edb08724f7d5f9ce20b4f227a67b7c6b305252fbc8df19ee6e. Chain 2 (Bitcoin): anchored in block 958838 (2026-07-20T07:01:21Z), 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/QZ93L2050533.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d68e8ed05e4ac0aa076070c64fe8e5b43b89a739bedd67cb1483ee5676ef686. 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/QZ93L2050524.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x515efb62487caabc0a97683f79987aae1a439a1c13152983be2f723bb928fc22. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/QZ93L2028880.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe799765609e4453d1abbe74e23f652ffbf9f90917d108b96594ffac8213985c4. 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/QZ93L2104142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7ac8f99c7c87d4c13a12efa32d74cd0908e736f3f959f89c0e4e2c40d75f665. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T08:41:42Z), 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/QZ93L2105228.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74586b87c73d0cf76bc76effa66fc782412d3830a80ea351c323a49814cec4cf. Chain 2 (Bitcoin): anchored in block 958959 (2026-07-21T03:51:22Z), 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/QZ93L2039472.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74662de867b13e175a1ffccc20360ad38a426f6d7f5fc51047734f79e8d1ade5. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QZ93L2131629.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35a215c7cb274f14d687fccf676295b398cd6bf8e50c6c5ad1aab7ba9b50c247. Chain 2 (Bitcoin): anchored in block 958083 (2026-07-15T01:50:31Z), 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/QZ93L2115569.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00580a6c172cae7cb15db89b3a779a5935770533255169e8185e1da652d2af21. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QZ93L2201612.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x678f5c4e4ed25a458ff3eaee8c70076af5081367bcec54f3c350c9e5db2f697c. 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/USA2P2415325.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbecd88ac8bed051a4fb0c7a4a016faccab8b6c132eb2b8dd14c25f38f81e2c56. Chain 2 (Bitcoin): anchored in block 958216 (2026-07-16T00:00:34Z), 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/USA2P2415406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5552773f08d573d9c59c1b1a4b7c40679f5907f2b31972bad968f3d612c6485. Chain 2 (Bitcoin): anchored in block 958121 (2026-07-15T08:02:12Z), 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/USA2P2415407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46ed1ed1719325654b1da91436179d70df19bc0bab1ae31931d30c04bdb9486e. Chain 2 (Bitcoin): anchored in block 957863 (2026-07-13T14:41:15Z), 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/USA2P2415410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbecf6b5e7463743ec6ffd30803807e7fa65ab11f875064e66942fc92502a453a. Chain 2 (Bitcoin): anchored in block 956637 (2026-07-04T10:56:23Z), 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/USA2P2415411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f89bda6553b289bfea71b374ea08d3acadb22f3c80e629a4beb0497c8bfb012. Chain 2 (Bitcoin): anchored in block 958838 (2026-07-20T07:01:21Z), 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/USA2P2415414.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x919137d1d4e6d68e028ccc8d9c1385d69d23f3e0e29c6bd2781538cfd5561d00. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/USA2P2466316.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x678f5c4e4ed25a458ff3eaee8c70076af5081367bcec54f3c350c9e5db2f697c. 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/USA2P2415325.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbecd88ac8bed051a4fb0c7a4a016faccab8b6c132eb2b8dd14c25f38f81e2c56. Chain 2 (Bitcoin): anchored in block 958697 (2026-07-19T07:58:24Z), 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/USA2P2415406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5552773f08d573d9c59c1b1a4b7c40679f5907f2b31972bad968f3d612c6485. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/USA2P2415407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff2108c1f9f0f44da2055531e52f3bc2fd631615f1a42ebc4d6d0346954ee044. 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/USA2P2415408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e003d4671fc3980f13e44d25325b9ef44c6ef7b6f17833c89ef8c8b8104e38e. Chain 2 (Bitcoin): anchored in block 958885 (2026-07-20T13:01:04Z), 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/USA2P2415409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46ed1ed1719325654b1da91436179d70df19bc0bab1ae31931d30c04bdb9486e. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T02:01:41Z), 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/USA2P2415410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbecf6b5e7463743ec6ffd30803807e7fa65ab11f875064e66942fc92502a453a. 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/USA2P2415411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cb72975aee68a83bf268ddfedde6cc7b1008bb87d9fee633eef3fc6894190fc. Chain 2 (Bitcoin): anchored in block 958996 (2026-07-21T10:57:35Z), 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/USA2P2415412.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf483eb018dbe091f893ef9385564af75a89c4390160b4308143c4e9b9b4b01b6. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T03:03:40Z), 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/USA2P2415413.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f89bda6553b289bfea71b374ea08d3acadb22f3c80e629a4beb0497c8bfb012. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T08:39:15Z), 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/USA2P2415414.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c5109224b34e28ec59bbf70fa1c440b8e98c0a8b3f4c74593ee2c51187f7bc7. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/USA2P2477899.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc55c96d90b098f35b8392801889c9f5c993827c0f49909a2d4c03e9b2da1395b. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/USA2P2477897.