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 0xa8c924bd3680555e7e7819fa8aa5b9f9ab97961a288a443ba08a22bb9e0e904f. 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/0baf34df-2c3c-4f82-a7a4-720a5e0435d0.json and https://artists.proofprofile.net/proofs/artist/0baf34df-2c3c-4f82-a7a4-720a5e0435d0.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Study Alpha Waves for Study , Focus and Concentration Vol.8
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 0xe1cbb57a713a11a5d7e5793dd0f38284e975d3854ea3f5ac9c0b05a1cc76247f. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/ITS781702080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x624dbcca61c5ece2f2c478ffbad056a07b8dad57def6723b73d00e2b6203f6c9. 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/ITS781702081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fb8ec4c75ef2f8cfa807a3dddc8d0c1bebf4748f249cd7dd9acbacd7999ee23. 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/ITS781702084.
Study Alpha Waves for Study , Focus and Concentration Vol.9
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadd74aa08f35054dbc649f5fec05ea6e64e11e6eb4f23c8b67f942bd4737c0cc. Chain 2 (Bitcoin): anchored in block 958568 (2026-07-18T15:23:47Z), 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/ITS781702085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56b18571c20955cb55e5460e1f3a9af7915b7801c812b98150f3622264c45654. Chain 2 (Bitcoin): anchored in block 959069 (2026-07-21T22:32:59Z), 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/ITS781702087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1f5bccd0c4184b3e0cadfae946e75feab89ba5c3609bf6fbc45ee966da54ce7. Chain 2 (Bitcoin): anchored in block 958631 (2026-07-19T00:50:09Z), 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/ITS781702088.
Study Alpha Waves for Study , Focus and Concentration Vol.1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86c6bd04f9b3ead0f68249c4c1d027589695de128540f40368092d96169b5da2. Chain 2 (Bitcoin): anchored in block 959107 (2026-07-22T07:19:23Z), 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/ITS781901316.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5aa726aead3a08192edfbd4f8e3f166fd7e72d8d81b2e1d6745bd9d8b835c37. Chain 2 (Bitcoin): anchored in block 959073 (2026-07-21T23:25:37Z), 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/ITS781901324.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b9503ebbdccfe785a557928e7b2c30a6c30578c62a6e354c31fa5228e4d8a0e. Chain 2 (Bitcoin): anchored in block 959132 (2026-07-22T13:20:46Z), 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/ITS782000228.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x590443902757ad193ae951f1d06910720aae6fcdf47878e851bcca601531849a. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/ITS782300831.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x757efa58385bc777dcf4603f41300846bbc16390b8b0d2661e68397158efb172. 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/ITS782400071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c39327cc2d251b6a70df8d75888cbf01a1a3a722e94ac4147809b3924acd223. Chain 2 (Bitcoin): anchored in block 958473 (2026-07-18T00:52:36Z), 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/ITS782400072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x071498c8aa86dbc28f678278fefe49e75237b546b8f4fd72d69050ecb94f245d. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/ITS782400165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcdf7adc85f3bc139b90fd002a5b46b231fac1a1f5c96cf757fb92bf01c8fa5f. 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/ITS782400166.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x624dbcca61c5ece2f2c478ffbad056a07b8dad57def6723b73d00e2b6203f6c9. 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/ITS781702081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc03cce90cf858d52b0608e2e2b2d8afb96c9e8b4c9c2f3610a94ac2faf9329e3. 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/ITS782400631.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25e4a782a25153132a11a26ecadd8843b47b311f792d0c186607db11a33ff0f0. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/ITS782400818.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba6132fb4f8621445ba6dc12ef3d11a9da7f654a1156043c14b3557ecd863c8f. Chain 2 (Bitcoin): anchored in block 958303 (2026-07-16T16:39:24Z), 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/ITS782401177.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb156121d90edc9b5dc43b31916a40677fa7fbb7046d9fc7ae853d51e36f76ba3. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/ITS782401198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee2c63df2b326065059dd66474e05f01c38055729c24f60868ad70bac9989882. 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/ITS782401360.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x791d95cbc8eb431118e17b16bf9e32687e41386a0db6cd0af9d9c24aa0a7fc0c. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/ITS782401670.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36accf6a67eecea141044daa21acb59d44553bc459c8c23ae3065820a7f407e3. 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/ITS782401881.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61f67cd2aef8d481d565d0e2cbf021d82ccdba438b603e18ff8d6a647b6ae05b. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), 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/ITS782402167.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb93888e083f80de8904b0951d1893d28d6ba04cd778d8daf5a2f4e4990f885dc. Chain 2 (Bitcoin): anchored in block 958779 (2026-07-19T21:08:39Z), 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/ITS782402034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c8a4e36bfa6009c81b936d59711a921154e80e80250032e5b35163d1add74cc. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/ITS782501248.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1a12acef118a19417f021dafdcc75c3c8602e1e97adbaf1b7ae83968bea1490. 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/ITS782501264.
Alpha Waves : Ambient Music for your Brain Vol.8
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86c6bd04f9b3ead0f68249c4c1d027589695de128540f40368092d96169b5da2. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/ITS781901316.
Alpha Waves : Ambient Music for your Brain Vol.7
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b5aa725bd6ea0abd28a652765d7e003252e9b95fa77d61d8a3053f1ebf19cb8. Chain 2 (Bitcoin): anchored in block 960153 (2026-07-29T21:57:12Z), 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/ITS781900981.
Brain Dots : Study Music for Brain Power Vol.5
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb6d9a59a556e396b6c53e4b860450499c8b281f7572b417fa8280f3e423f451. 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/ITS781901272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddb879e48efbcbb11ccd2467bbfea29dfbf15f739b6a9f0c83b5ede0d3f41fd6. 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/ITS782400054.
Alpha Waves : Ambient Music for your Brain Vol. 3
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf53e7d48612c76a9ea78c493ae0974a7ee8bc85db2b27b6d029d68e837b78ea0. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/ITS781800464.
Brain Dots : Study Music for Brain Power Vol.4
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5aa726aead3a08192edfbd4f8e3f166fd7e72d8d81b2e1d6745bd9d8b835c37. Chain 2 (Bitcoin): anchored in block 960302 (2026-07-30T20:09:33Z), 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/ITS781901324.