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 0xf2d2eae56be73463caea5c0f2c2ff176ef56dd8a49a179dbbcb1fa7bd1627a72. 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/76cff368-7122-4958-ad81-1274ad86e545.json and https://artists.proofprofile.net/proofs/artist/76cff368-7122-4958-ad81-1274ad86e545.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 0xd54b87e38c741b088d1738f32f9f8e1949742e6c2c4f930da6e0668c7fb9e865. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/CH6542410034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45cb27e9665a4f6840d855a2ac3175f161f8616660e77b7b9d5177f01534c78f. 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/CH6542410027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x812f5b811153216b8c1589a274938403498aafe44616f3c2df394738dd9f1df8. 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/CH6542410037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x078d43ded4bec137c52b3463ef2600d5995217c2a48b8b8b4a8d7f155b23dc6e. 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/CH6542410031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa270dcce81a2dfa7396b144fb7a2685dd776337d9071cddbddf58b7e9159fdbd. 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/CH6542410028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26305541925417c2b1a6c96db9b12ea6ec3fa3d69da9170b7be5cea6a95705a8. 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/CH6542410032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f16e339a3bd397968b0380fd713dd18cd46646ebd688ebcb3986a7fe08f2223. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/CH6542410030.
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 0xb500c529b105d5711c224a87fea01c9f3357299b159baad4f8b7090c1b3b2d95. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/CH6542410033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1701912d4e99378673bb168610658428094e66b19dd6fddf419fcaf631f5db45. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/CH6542410029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf58af95ee35a32c4ceef92ccde735eabb6631dcbeb0a603ba3118a653d07bfd. 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/CH6542132156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae50cd61771b2efb938f5c5928404558070c59fb04d87df23c2c378a777a33f7. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/CH6542132150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbef2dfcae8e58d5227f6e56be1777e23274e08d1e6a46e05cb7902f227de387. Chain 2 (Bitcoin): anchored in block 960170 (2026-07-29T23:52:38Z), 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/CH6542132154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b34ca0730bd98decb3925fbdfa94cd25a376fe3664f8849665d4443efb3951f. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/CH6542132157.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76fa0295e3aab515ea79dadaadee48f5ddce0ac0bf772eaa05d614b5fac64a04. Chain 2 (Bitcoin): anchored in block 960258 (2026-07-30T12:45:34Z), 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/CH6542132158.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d7cc548c5e5494943f464e22737af2c5e45b5854ba61a36462876a59e78a00d. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/CH6542132162.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5056ff5cd4d37ca84e1026d60ea380b2b3fa083a3122c2fb0404eb12c041225f. 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/CH6541794279.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa86654eefe31024de874b190e6864c24d343fc3d8533752a4632863fa5cca563. 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/CH6541794278.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x054c3e181e895013fbdd5a59ace3944397ce30f66de9bf067296312dd9516e6b. 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/CH6541794244.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91f0516946d8a156aafa7f789488b9a01cf85d7520be6162de304ac2aec5c9b1. 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/CH6541794239.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x035e19241765cc9063afd3e09724c53209e2e57cd9ddd1b4d0725a0ecf337b28. 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/CH6541794243.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc90ecefff57991637920de58b5e74153cbc2525e8b483ad12649ddec04cf7d50. 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/CH6541794242.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda4bb44b59ad71c5f2b4151ffadadad7457b304ae2a75e3043b19440af17889f. Chain 2 (Bitcoin): anchored in block 960300 (2026-07-30T19:42:40Z), 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/CH6541794241.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ffe993c2f6d25b149683b71f92341bd24fa77a38592b9b350a9d27cde607ae6. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/CH6541794240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd29db377b86391d1bd5e194e14b8ed2cdb4373499244cd5b6944fd622f0f1910. 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/CH6541794237.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeba96d688ea741a7776e3caa49fe6ed1f4786da5174c7a616b7558869dbf4595. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/CH6542375961.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe9555d81f0b1ee613514e68b684785ad31fa001d74f2372bb67ceb731796e19. 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/CH6542349042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3994aa4429766b8cf9b4cd1fef685bbc047a6a9bf4ccb2a673a89d466668df57. Chain 2 (Bitcoin): anchored in block 960422 (2026-07-31T15:27:29Z), 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/CH6542349043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6db7d40708a6f474a8ab368b73ec48a4c39baf30c1330475b042dbf63eb99532. 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/CH6542231023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b2e031dd4a6acb74896cdddd4a88d7ec9ee579f64ed6d32f84f1fbb87b148d1. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/CH6542231024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c539a9cb09db5e9f1b8480c20dd3f5cedaffddfabe85f4eaf3ee8a7d8fb1bdd. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/CH6542231026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03219a9f1d5ac6355d091afd1e5503982c6775421fd0c1c86ac3410354a45289. 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/CH6541843588.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x113e703e33846ab1d129cf69b94c73d6d6d94225c774d275461a8a22eb62a186. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/CH6541843590.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x195a42b736fd3b9e69718c96b683a29b99a9d60401a58ddb0215637f267aaf4a. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/CH6541843589.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd477153fd4baf3510a844018979a0580b1d09ff6e6fe9a514aa440696188ceec. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/CH6541843591.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00cacb92f6eff51a9295779e95a520409581c987bc7788adea639d08f141ac5b. 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/CH6541738118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf9f31f14f20c8bf5f2c648c9aec06398a6c7a074988e5cfe2e39d2a4fa45c36. 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/CH6541707222.
Something In The Air (feat. Andrew Hunt)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x075b283a614a6c44c52ae30c9a7eeb0ef9d34c9c9530884f5d5048565572cbaf. 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/US3GD3514962.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5027f6e47bb3090a9d6409d8b00d4e9307664c521dc8d3baa72b366274e51b6f. 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/GBKQU1594548.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89f210402f9fc758b95c8f6d383a20ae6914ccb6546a6dfe96c08b03fb965635. 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/GBKQU1590062.