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 0x960bd5b864dafc3ffcd21689aecfbe469849e8a736937ed6bd57bbc69ed7518f. Chain 2 (Bitcoin): anchored in block 953741 (2026-06-15T04:44:49Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/994ffe59-ad9b-4e1a-bf92-a62fc53302ff.json and https://artists.proofprofile.net/proofs/artist/994ffe59-ad9b-4e1a-bf92-a62fc53302ff.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 0x06aa0b20f0e97e24ea8d96abb914e77f40ee1709d964a2e36ff447c8ef11b561. 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/TCAFO2197763.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cf65819f9f368ac53cfd2dec1cbd20f63d584c1cc5a4a9f9664d934deb34560. 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/ZAY362100703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1428cd5a7943b0c1976c7eaff3fa4f9422c139b3e349af0b50166fb8c4dfbb76. 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/ZAY362100707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe67f579f6bdb0a1b45a3bf8e9f1be576faa95759132635425cfa8817699816f6. 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/ZAY362100709.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78a1bb1ea7dfb00d9005fc752ac9d53f2e8378ab084aa8eba48f9bffb5cc835b. 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/TCAFK2186668.
Level Up (Original Television Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16fe59664447254ccc583bd886f5f008c18084922c05cf1b13abe635b2b02d93. 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/ZAY362100716.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63373e05fdf4a0a83f379b804bbfb10ebb0706a4308560aba2f7bd84ef6d31d3. 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/ZAY362100718.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f8401871f469e13a8a07023df9d161de387436e33450f82652d44b185c26d97. 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/USDY41881759.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1570b1eeae3a1c77a6caf510721d2e1c5712094ef2d6111e3ec5dfc0fffa5362. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/USDY41881760.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2be755723824321a817cab78e007fb240d250ce2b3d06cf775f22a96d39af1ab. 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/USDY41881764.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30460e8df550bf6f78306c3ddf0587ee29dfb357f81624c2f504f14fc5eca4d2. 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/USDY41881765.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ea37536a2179632a6cba7540ee59d5f346412ad69f8936f6d370725ecb750b2. 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/GBLFP2304712.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cf102c13e8c4706689259cf3161bb57221107b256626df16653a0c7d16a66cc. 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/KRRAS1638594.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9deb69e8e686ae3d715d39e7d0bbd9cfd9fdb62d49b5e91e5db072704428ba05. 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/KRRAS1638601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ab04d33d5bae77bffa29893b1f813088a79ef33cf0ab8d03d446179f8b52d2d. 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/KRRAS1638604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c511321bce9bdb8b4a2e0fbaeb3f083a025b77ddffc95e34a812a64bd0e81b0. 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/ZA52S2200058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80763e663b6bbe06060cb3e9ae49278ffc8a3e449bb4feb1f94097cd6cdd770c. 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/ZA34K2000356.
Reminiscence 7080 (Remembering Your Younger Days)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc12b9688692b72c2c53a1f48283068899f455408a95e3cb30c1614d90d808ee4. 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/KRRAR1700265.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0843d564b695ccfd2e53478055f10b0ff652668502c845c91f14000e91fb1c8. 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/KRRAR1611600.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec23d7eb3390a3245881eb81a55a92140b01db88cd25b9bf86ad68dfa80802c7. 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/KRRAR1611606.