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 0xaeb98c403a2c7c105fcb4dd0e7fde99ee2c778a7f02b54a371200a162657f5af. 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/18aefcf0-5f12-4d4b-917b-ea52db8225b3.json and https://artists.proofprofile.net/proofs/artist/18aefcf0-5f12-4d4b-917b-ea52db8225b3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Wait Long By the River and the Bodies of Your Enemies Will Float By
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 0x9bc28f1e0be7c065a52636978090ff23aab944d4d4476278403152b38684165c. Chain 2 (Bitcoin): anchored in block 957898 (2026-07-13T19:28:48Z), 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/AUIK00500003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x860819d611eea480621255ece9ddfa442ec0bc80cf3869761e3187431aeb4d47. 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/AUIK00500004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31ea7aa2e264df3fcb7557b5113056cf6cc45095430a9ad381c3dc914a6abb5e. 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/AUIK00500005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ef6b686563a1823ac6074a2abdf496fd9a0dc75e70898880723a2c6662b8482. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/AUIK00500006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8aa085e10e7396e346cd5b5e42c16e57e95338f0169d41ab2b9c97c39a8e0b40. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/AUIK00500007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0913a7e4e77e0537881272ecf5c83da5226fc4f9d8e0bcf2e71f3490a2bccb83. Chain 2 (Bitcoin): anchored in block 959094 (2026-07-22T05:34:40Z), 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/AUIK00500008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fae9ccd4add6ef4817e8d494c6dc76e5af6f7af5309a6b368eb6fc4a1d3636c. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/AUIK00500009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9088bbf90e0a320887910b0ea8af0256cf4b92b08b6c6a00224dc39ba552e37. 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/GBMUA0600009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d7c395f05dbb0a69b5f3e432e60ed199a47b90fd9e981f7e7970923d04bc524. 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/GBMUA0600010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3155df54b5eda4c8df28a9a7fc2915835e85535c621b50372d8110d96981e731. 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/GBMUA0600011.
Words From The Executioner To Alexander Pearce
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75ba212ec0b1ec8abf8fbc29490307c00e261752481533c3b6d4d0d63943db37. 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/GBMUA0600012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9401fc628af52e457c3ece4e9718f45979f51b9aec508947f2a1de5632ea8bb8. Chain 2 (Bitcoin): anchored in block 958911 (2026-07-20T19:28:03Z), 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/GBMUA0600015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd218279b23fd2f865c010d2b54a7a298b526722e1bed2467f69ec0cf5aa0fb39. 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/GBMUA0600016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e0656bb62fa7a264d8650a5456e42f7421ef44ade1f370d8369d1310c694a6d. 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/GBMUA0600017.
LIVE [in Spaceland - November 15th, 2006]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1bf121382efe2ffa400730d730e188376974c495eacdbaec02fa15095f3f089. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T05:27:48Z), 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/GBMUA0800012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21cbf8e4d10756ae4d333512ba07d3b6a8f4cf4a6a8bc2cf16f44fa4a2715e9e. 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/GBMUA0800015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18da253d3475edf5697368571fa6486e805909cac30d20bec66da5edbe7c754e. 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/GBMUA0800016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3af7d2908aacccb18bcd2f07a5420b4a6329e8fada33fdc100c36c9a015c3e63. 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/GBMUA0800018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc6b0d9f9fd86e3e8bff10f1374eb8bbb90a06aa158fc44e2c74c6ecd8154160. Chain 2 (Bitcoin): anchored in block 958907 (2026-07-20T18:26:52Z), 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/GBMUA0800019.
You're Acting's Like It's The End Of The World
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d02c7904d14740c646610703323d8c51f05e838b47dcc3b0e5a47e713f2dba8. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-17T00:40:10Z), 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/GBMUA0800021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x235e10ed1bd28f78647c1ada9f09c2c89cc478a6cabf5aaf059aedecaa1ba9b0. 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/AUY211300001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55479727e518625fa89f99cfb9c138890973c093a7e86e1c4a857d20a8c54f1c. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T23:08:41Z), 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/AUY211300002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe715e2dadefa6474cf1cf48f673ac1f8ea193c67d79d9470514bbf0d04d44310. 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/AUY211300003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e02f8edea7a9cf04dcf0888becfab9b6ba132ef6ba3761656a64dae15fe15b6. Chain 2 (Bitcoin): anchored in block 958703 (2026-07-19T08:36:12Z), 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/AUY211300004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e8f831c8f6ade31a3e3f6a4be4bcfcb323f81a5173e3517f983b70e911dc7ba. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T20:03:27Z), 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/AUY211300005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bf401a09c64e50718cccdf725482c040a1203f31912df9a98d6793e740c2e18. 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/AUY211300007.
Why Write A Letter That You'll Never Send
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58fac7c9d0765da9a7bfd3dcf93ab9c6d5463a65c98306cd815a2194ecd0934e. 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/AUY211300008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9034c2a4996dc297e260007e865b7216030afb3e272aa126746a5491836bd992. 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/AUOO00200002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7193c02d0809a3b363d101d07c4e8c6a373c0727b39101551ace67ea2f1c76d0. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/AUY211500005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25aa3b616759c5eb2bc30619162439240969d1fcc8a780e682a8ae26fbacffdb. 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/AUY211500007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb13506c0d9de641cdaf7f34bd8d1b33f1cf8f28f7592370b7092cb4473c5fc23. Chain 2 (Bitcoin): anchored in block 958538 (2026-07-18T10:30:13Z), 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/AUY211500008.
Cannot Buy My Soul: The Songs Of Kev Carmody (2020 Edition)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03e7abaec9e3e4c38ca6eca8de41a4547fd78597a17c0cf6b3b0e08f46486bc6. 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/AUEM00600158.