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 0x9a1c8f93029e603bdfff7ffb91e27024fda59a9f95cacabd01823c8ea20363d0. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f04ce0f0-dc7b-4e7f-bdbf-17a7b5fa5738.json and https://artists.proofprofile.net/proofs/artist/f04ce0f0-dc7b-4e7f-bdbf-17a7b5fa5738.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 0x2436bef0eaf731812b9a196480797e37a2055fd26546532f6777a4367701b808. Chain 2 (Bitcoin): anchored in block 959065 (2026-07-22T00:55:47Z), 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/SKA011000103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3244ca79cbe9a53406d5c54b6a114e75c535e3afbd9b4359f9cca5baaeb74721. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/SKA011000104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec93012b7c91a2a3869d6da79842164e12ea4d30ccfbaebac05789a200782658. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T02:46:47Z), 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/SKA011000096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22757f8f51edda0e1fe7fa9d5ca68e9fe6870804cca68f8c76b2f69faec62181. Chain 2 (Bitcoin): anchored in block 958633 (2026-07-19T00:54:50Z), 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/SKA011000108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf32ad0be635d15b30ecf4bdcb6cb085239db3498c5c4dc22fe1606f0262a482. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/SKA011000110.
Life Is A Game - The Official Song of the 2011 IIHF World Championship Slovakia
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd430fe121422b61ab97f5a3c939bd2c9c4758657c5382ca77d1beff0df12fb18. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/SKA011000102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6790eb902068e6e79678bf4ea62f2e6b0f4e020eeba7af4390d85eb74b56c09a. 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/SKA011200003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2178dfb7f40e00a914f9dd01394f6704fa94920029e70620ef98f73f8f92be7f. Chain 2 (Bitcoin): anchored in block 958860 (2026-07-20T09:58:28Z), 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/SKA011200029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4959ccfcc115d0ce99237ba76af34779e7810f0a9e145303b7b4abdf0d43e4e8. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/SKA011200034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf07640b9f1362e56360ea7a7b10e671cfe97acea0fefe396db0bd8042dfae9a2. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T21:40:26Z), 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/SKA011200035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x493643ae5393708dd2919ba794429ac4c3ef74763622c6d8ad8ca74b39e68458. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T20:59:42Z), 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/SKA011200037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb23ff7291104c8ab7a08ff3252a6f68408243710e6deb2823971dd07fd8f0aee. 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/SKK641700108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c3edd39ed0245e53bbf3b7bedc4ada59ffa1913908ec7277ae53893ae1300c6. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T12:07:28Z), 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/SKK641700112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa730c9bd99b33c699b15587bcc2fb44efb7483aaaaa4ee95049c11b12af3ae76. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/SKK641700115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60766c8597ab0051c28f099a55345c1e70ce881328e3cc3202f1aa3ca1810cfc. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/SKK641700116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc36046b713961a6bc12e3f3a3cd0232a3cd6e03138a5a923a82fa631d76b8589. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/SKK641700119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a43beef9470c3265aa0043ddb0416a5ac665a7504511da6907a034d38569aa7. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/SKK641700102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c371ce5365b3d32510267a254e90294ec4548e7e3334e7f0f8dcda05dccf819. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T08:14:15Z), 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/SKK641700110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc27648b965ef548bced6ca35e3dce47c0a347e86d8e0bc606059becd34afeb38. Chain 2 (Bitcoin): anchored in block 959054 (2026-07-21T23:02:59Z), 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/SKK641900201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7c2f7420b1e0b6d3d7901f262899c29d12a6a8cd8f8c783439cb8f5e7e0ae8b. 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/CZA163370791.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b8ce8ca576dda28726ffc71cffa6de053011acbfa1ffd8f35d08e0c6ec20b75. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T22:58:12Z), 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/SKK641700201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09c2120b9915cd58195024683511dd9c6ddc4b942f38914e6c78ee77de0f412c. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T09:45:25Z), 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/SKK642000101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2a119e4e70cff8cab0bc01e2c60eb08bd572bc4a840f252860cbefba1c2d1d0. Chain 2 (Bitcoin): anchored in block 958622 (2026-07-18T22:58:55Z), 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/SKK642000102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c0622d29ab32e04de99408de69ef7f56c4108b96368612f57242eb6f34a9ddd. Chain 2 (Bitcoin): anchored in block 958798 (2026-07-20T02:24:41Z), 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/SKK642000103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3ef799b41728c16d6e94ba699cd74c800f8514fa76b9cb561457d50e27ed183. Chain 2 (Bitcoin): anchored in block 959118 (2026-07-22T10:01:58Z), 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/SKK642000104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc3f4caa00ef719c4119d9d6405863ae5ad0ccfb352ff2d8074655371b544e72. Chain 2 (Bitcoin): anchored in block 958742 (2026-07-19T16:21:52Z), 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/SKK642000105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab80deeb1653a2779726b8b5dada9ca3db8411a0bd58a4b270b63d12cefff8f2. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/SKK642000106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd82a92c231a8f377962db7841fb60257bef7cb3154e98eeed6dfc27d7a8ca154. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/SKG061300301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x104b76dd33398d5e25026e491cf03b6a1b06b5fc625bdece227fb3712f1cedf4. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/SKG061300101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x012182fc2fe9693a499f43c120905ef6f02b29bc55b62e35ec61898c25641b29. Chain 2 (Bitcoin): anchored in block 959024 (2026-07-21T15:31:18Z), 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/SKG061400302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe48d489c1e7ef881302b91757a6a973d54cc9a69b52cc754d1c08bcc9e42dd30. Chain 2 (Bitcoin): anchored in block 958371 (2026-07-17T08:24:32Z), 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/SKK642000201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25bc6c00a7b738cf956b896cf7e0e6c788453e9f3b1e6638765a98a3db85adef. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/SKG061300201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58ccc5d374ab2f8b4aaaeeb45c0f6d5132cacedb41715da97e0ddd20568dfbe4. Chain 2 (Bitcoin): anchored in block 958996 (2026-07-21T13:35:21Z), 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/SKK642000501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b88abfa35e9c112d1931377ccad0d14da10522f4a3f6244c9eff1df7a906e99. 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/SKK642300401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd152e0441c3d585030912ad62b647a416f7223033f6b9b660ac13fef3e9b195a. Chain 2 (Bitcoin): anchored in block 959080 (2026-07-22T02:36:20Z), 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/SKK642300501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9ba53ddcce265600a6d10f59c3bbcafce62de48f488cc0c972970fc3337a006. Chain 2 (Bitcoin): anchored in block 958987 (2026-07-21T09:04:56Z), 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/SKA112398001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7769e5648760b85a45c4e954a5418f243670fb5fe5530394b6ea16c2eed6bd6b. Chain 2 (Bitcoin): anchored in block 959024 (2026-07-21T17:40:04Z), 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/SKK642300101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a7f49376c1fa1132fe8ca9aac5bc56a06f1e62b3447fabcb3256d3258c17239. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/SKK642400101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08c176c76d97fe24782bb6cbcaf939b125f5b5b4e2fe1c3d0ce087357b49f89e. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T20:38:32Z), 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/QZMWW2553288.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa674b6661733f448c152dee1a3ce0fc4978424c98997c5a92212f8b10b65ca24. 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/SKA011000098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc27593c780b6331d4dc400728e67ac0291b4b7230cbaabbc6c8b8a247485071f. Chain 2 (Bitcoin): anchored in block 960108 (2026-07-29T13:09:35Z), 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/QM4TX2137187.
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