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 0xbf7467595e04e49e704e075d9c694320e2a2ceb5db1755f7315182a3763dbe51. 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/685af1f0-0f22-4a44-880a-691578ab1ed9.json and https://artists.proofprofile.net/proofs/artist/685af1f0-0f22-4a44-880a-691578ab1ed9.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 0xfbc806986dbb4fa0f7eacdf14ad2b81b40df78a84e8e7b629d6ae1dc4db487fc. Chain 2 (Bitcoin): anchored in block 958487 (2026-07-18T03:43:59Z), 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/QZEKE2013903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb68fc0231ee098384825f98db730b5a1469297627a15dd3ade45b04a73aba71. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/KRF252200378.
EBS DOCUPRIME <KEEP OUT-Women Over 60 Only> OST
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x868580c4ed89a5fc9d96e2033fdae5a6459fd94ccfe4a6dbfaa0ff6a5aa889b3. Chain 2 (Bitcoin): anchored in block 958350 (2026-07-17T04:53:40Z), 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/KRF252200360.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bda2e6be230ce0ec3056337062231fac9df08e23353955f61d172a10fe4117e. Chain 2 (Bitcoin): anchored in block 956397 (2026-07-02T21:02:00Z), 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/KRF252301107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72701e0a52a82567c2559a64c0573729bf09c888cd3005a6bbe2b8a0f5f595c5. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T16:30:29Z), 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/KRF252301108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1195a8ea6dca63515e3330237bb58c4c1b214526356b1c0e72759c8be2da672c. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/KRF252301109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88deaf449b3ac8ff64eb197f095cc003195b252c93797e66f9ad8d57ef883885. Chain 2 (Bitcoin): anchored in block 958404 (2026-07-17T11:34:58Z), 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/KRF252301110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x860fe455d8f030b950fae2c8c453208cf0a0d0f08f1a657a89e30f5628d4112e. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/KRF252301111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda793c2e3d5fcb0f316164ada6ca6936b3f1bcb24a02a9e590e561b4acb6f6b8. 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/KRF252301758.
Secret Playlist (Original Television Soundtrack), Pt.2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd169b6af2fdccbeb4fef3a7832b1ba7dea0ec0ecce9d8eaeb88aaa27fc60d0a2. 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/KRNAR2378161.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d24809eddf849d9a940f9a56fa3087d9df03f0cb98909febf319e8984f89745. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/KRNAR2378162.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a6e2833fabadef61e8acd05c69b521b2170d87ef248ad9d183293566822624b. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/KRNAR2378163.
Secret Playlist (Original Television Soundtrack), Pt.4
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x491f1253bba7164af1b68219d0d87bfa037f5ae5b4b322d9e9b6a49036498969. Chain 2 (Bitcoin): anchored in block 958686 (2026-07-19T06:43:29Z), 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/KRMM02315626.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdd312a4f9c5cd144d186399997a756d4faf6cb44382da5988274b9f55bdc822. 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/KSB022340003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb676a7ac844204472aebf29d5a7dfc4378592b9170fe3d78d341a113df3c50ee. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/KSB022340004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa01c3ea77e43823c0df3c7c198d1ebfc031633cf65e955346fd0a7c066ef4fdb. Chain 2 (Bitcoin): anchored in block 958397 (2026-07-17T10:29:45Z), 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/KSB022340005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04abb06cb1c09ad26a0f957f740a401f477090e06541de18d8d5f6b29a7a1abf. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/KSA002400235.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd0b852bd83e2e0fd8ec3930cba79e64510330c3a75b72cc20413819a8e52a16. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/KSB022440043.
The Defects, Pt. 1 (Original Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe07724572a8fd0aa447e9de1586c6b46d81fa6ed62bc9b6f91f8174fb44a0a98. Chain 2 (Bitcoin): anchored in block 958876 (2026-07-20T12:15:48Z), 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/KRB472502074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96b883e97a0ef434733e21a0c33e946b81b9a481ee64ec1431278b46dcfb0a5e. Chain 2 (Bitcoin): anchored in block 958106 (2026-07-15T05:35:13Z), 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/KSB022502215.
YOUR STARRY EYES (From A Hundred Memories)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24d3ae4314485ee29a79205503c438658b68cc9a38c76a63b6c9b13ea80dd578. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QZNJZ2428480.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed23b9a1faef03d4a3f08a951168929743e32785fad5f36a9922f3385e1308a7. 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/KRB472300173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadad44ca93f3b6b5ef0c159ef91bc1179500956c91ab565f2a1a7492e2d125e6. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/KRE892100070.