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 0x870f3abdc085a18289722c3256d8c964a9ec6b5f44b6624c3083ba4c01c2b7e0. Chain 2 (Bitcoin): anchored in block 953842 (2026-06-15T22:22:30Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/eaefbc3a-cced-45ca-8454-404bf2d33200.json and https://artists.proofprofile.net/proofs/artist/eaefbc3a-cced-45ca-8454-404bf2d33200.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 0x8ebe97eaef6f44ffa3b704fe83e40117ac580d65956f0d4e8560adf247aa775d. 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/FRS182078199.
(untitled) As Told By Smartpunk & Friends
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11b5404250bdcb807812e412fb5a497c3f703016a0e86ae939267532200de0b7. 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/QZ5F42000091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06ba4d23df9662782a411a4c7935aebe1d83dba41fced7fb5f2bb0a0718bc20a. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/QZ5F42000090.
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 0x299ecec64fd71395759cffac7bea712ece5a40840f96e3538f633edd4efb9550. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/QZ5F42000092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14aef05a303c78fd4dc4ab9dba67dfb369bb3f48d826ad6249aa942e835cb3de. Chain 2 (Bitcoin): anchored in block 960497 (2026-08-01T02:22:04Z), 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/QZ5F42000093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53efc15df359baaf06c9e5677e170fad031bc34d3b8792d261086a4c226026c2. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/QZ5F42000095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcac6a3ecbdcd3cc01ce3661de6e08482343de08b4b0dadf3c43101cd07ef9c81. Chain 2 (Bitcoin): anchored in block 960506 (2026-08-01T03:50:58Z), 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/QZ5F42000099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0bea38abd42bf54ad74657443e36027e06b2eb0686c044bbf4debb425ac4aea. Chain 2 (Bitcoin): anchored in block 960506 (2026-08-01T03:50:58Z), 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/QZ5F42000100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12130d826cb15f7fc7a1f552dcb73a7f0fd2e7c0295654a2b47a41a17134b99c. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/QZ5F42000098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82220bd19424222d869aae9787c5eee7c4b45273240a980852e403d34ba81a61. 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/QZ5F41700001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd60fe6f3cb8632cf8cf8ad3e10b63c6bf3f2ca9f503e737edef3b15e4e2875ba. 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/QZ5F41700003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70db55e4d41171679950e9c2da73e0ecaea56fbe90dc3985770e8c83de68ec53. 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/QZ5F41700007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda4c5c0469199ea05f8bf243bf686f3512f2ad352eb35f7355ac1fa976fd3490. Chain 2 (Bitcoin): anchored in block 960240 (2026-07-30T09:57:33Z), 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/QZ5F41700006.
Adios Amigos! or: How to Self-Sabotage Without Even Trying
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47a42e8f61d5deb2acb87460d36bdd6407744dd2b63b3094e4162412d387f2f3. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-16T23:24:20Z), 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/QZ5F42400057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x928364f9ee4447961ec0e2180b25eb7765f7be160b5d0595fd98fcc1c186fcd8. 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/QZ5F42400061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x001b0bac5f33b391085d93d910d54de4bde43184b712e5e2f812a96ccf45cbe1. 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/QZ5F41800011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5aafef76c3dcff23eeb3287a039c06b9763193286549c0696a203bd6aff62429. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/QZ5F41700056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b9b5b693b3240fdad1b39ffa3e780d6ca9ec67a82ee79a42dfd67d4ae0bca4d. Chain 2 (Bitcoin): anchored in block 957032 (2026-07-07T11:43:09Z), 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/QZ5F41700061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40fd8ec9fa1bfc6e0f2b84946317e92b7d5bd69c32bae770312bd32abe3d0d64. Chain 2 (Bitcoin): anchored in block 960404 (2026-07-31T13:06:57Z), 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/QZ5F41700057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5aebc585da4336460908c9fede5c875aec1cf0f996ee72af01cc6c2e71134e6d. Chain 2 (Bitcoin): anchored in block 960503 (2026-08-01T03:41:24Z), 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/QZ5F41700058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35c74a3ecbf6b3fa2ba0e4b148fbc8b7add361fe10329b448edad1e12ad26605. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/QZ5F41700059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e3ecde061e53c4b990afa7c20a3b9e35a162551aee5ba3a5fd8620024740016. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/QZ5F41700060.