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 0x4f8fc3262638ad9aef2656147046784378444a5d48b14092d7063217167baf68. 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/06158028-b201-4cbe-a94d-a4de8b0a03ee.json and https://artists.proofprofile.net/proofs/artist/06158028-b201-4cbe-a94d-a4de8b0a03ee.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 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 0xe6ca8401150b448353538b33261937b3eca4dd2ee04f11c4964b2178c27fcf3e. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/QM24S2201444.
The Hypnotist (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x221170546fb121d7a56da3b2a7b2ca06bb2a937db1de34328c9ca58bbef24d0e. 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/GBK6Y2422401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1e9886da6c7d1c9d29a9145305475d03158cf3a9cc5e423676742b9d28d3571. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/GBK6Y2422402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdfb80f9430bb4d546586cd22b4aca54589e87339618c086ba5363b981c6a5e8. Chain 2 (Bitcoin): anchored in block 959155 (2026-07-22T19:27:35Z), 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/GBK6Y2422403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ace8cd2e3780a5c9d21a55015fb3711d4b5d9e9d1b8eb56bde6bace1e568d11. 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/CA5KR2317827.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3c57e96b3d16e337cbc85bcbcc7fdca91063abea07addb753403e12310ac825. 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/GBJX32160038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb818cfcabfcce3ae84edc40e5f0d55419ec25d11fb30d99bbe165a8529c281c1. 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/GBK6Y2157001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c2fea33d931accbf3d5aff680c688d3f47188d81d1d0391fd041f006f00ff77. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/GBKQU2134376.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc079c58b4b8e25a2184832f262fe666887dfe3c349c3ba29cf3e132ae996c647. 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/GBKQU2134367.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9074fba28c1dd666ab3b9a6bbb2ef396a70ff8a492816b5b6817f8ee14f4c66. 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/ES98I1901773.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x558eda4b612fc49659352f95712480f81dcf6b5cc21c76a8726ba9df7faf487d. 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/GBJX32263023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66f48865910c17dd08a2fbf416bb9182789d16baa6139ac4773ce7fe510feca8. 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/GBJX32263026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc386cd9491e247a50b815a11c919e4c2c75a8703c999096e27e4350fb590bafa. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/GBJX32263029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2098ac6a00e9ce500aa0098633483279262824fa11fe1e04f06a9c9fc61f2d40. 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/CA5KR2488665.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84aa262215daa97d1aa5ba6465d34679d8a5c91216cdb040f1ff63da904bb314. 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/CA5KR2488669.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e4dda7f231f59926f0e46054a1fb38d0b82a41ab69fc8b9040fa1f589f2018b. 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/CA5KR2488670.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6f65c00651641869dce6fa59af51779c8a50dbc42f63c56e4aad3148e0e0a36. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T20:31:07Z), 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/CA5KR2488675.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf760366ef48fbc5177dcb8b57742122e16ab97f186343975ea61d527d82375b. 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/CA5KR2329307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41b56be99f4cfa5b94e6caad41aadf318e57ee973d4a12f729136ac00a0b5a81. 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/DEH742161743.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa51d6689fb71b95838504b3026bc5890992f0c4d34a8843a1fd8bb796b68293. 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/GBKQU2532408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e9e6012f915d0f29a9ec67c13752f46140b24226147813b2a7e6a791c52f2cf. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/USNRS2543987.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e1c231b2c0cdefe81b5cafc127ad30d04887d14f56397fd9daccbe0d493ed8f. 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/QZG2X2403590.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf737864f915996f7fe693d9b33211d6011b03a0757c6a210dfed1cfaca18d3b8. 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/DEH742505097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63011c533c622b864296e81492218848290777743f8a2099242fc5a31aade23a. 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/DEH742505100.