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 0x14209090e39fc3c9cb889ad3439ef6bf5cd0193456e9bac4b59b9b490a549aed. Chain 2 (Bitcoin): anchored in block 953681 (2026-06-14T19:31:23Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/63d29004-dabd-4bee-a764-87eaff014081.json and https://artists.proofprofile.net/proofs/artist/63d29004-dabd-4bee-a764-87eaff014081.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 0xf956f4ffa9d97d3736df11ec2f6935d14f29e31fca6b51a88b086199d3344988. 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/FRX872149446.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x650d3ae1e0eeefc1d3a49048d26ce5551d5ccadc986e79476320cbbe16cb1501. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/FRX872149448.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bacfa7836a7e3e2ec1c2d1a45f6d02448c012f2b5c1ebde5d5069ff5cb9a531. Chain 2 (Bitcoin): anchored in block 957065 (2026-07-07T16:43:21Z), 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/FRX872149451.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4faa4f3d8dde69b9c072872ef3165ac3c7137291dcc3aded43cd10809f98ffb8. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/FRX872149461.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x239821cb1260c9e4900ecff900dccf21b12b2e88d929eb507407eccf228f78a9. 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/FRX872149468.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfcd3a8ffff5e45f7821dd76b7f8c9c2e4ab48f09ba5cc17c027030c0fcbe2f2. 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/FRX452342912.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x152952b939987bca0eca2d4fad5758042866f80631a8be7ce94cfb1e90cca063. 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/FRX452342914.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93a8ca44dc0abf4c2440d0a4408eab3e559c0ec67d521d1f656e7ec566bfdad3. 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/FRX452342916.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb83070722a0497a0fba795f43de483a19d0d48041bc8e12303403e0670047ab5. 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/FRX452238855.
Bleeding Knight (Rise of Kingdoms Original Soundtrack)
Bleeding Knight - Rise of Kingdoms Original Soundtrack
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc750a348e9f90292b92efe878e0e29a74c4738cd012c70d7e995882a606f461f. 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/FR2X42235768.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8097078ee33c8e3c6412b93fd5258a83cf234b7a28e15383f3762819f70b1849. 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/HKG732419606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fdd083fe1497f6f7a806e0674ffbc9084822a1e8903daeb17f2a64f3e7c13a0. 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/FRX762198451.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c8adf0fd3cc839e1affbb8718de630fb0e3f2504ff699748105e21d480a0b2f. 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/FRX762198453.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x920fa26a42ad1cf713dbe9a98002b3fe09dba6b4e4e0a50f32e4e5fccd186ab3. 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/FRX762198455.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x659856a2da9a56832bcbc8db423a6b5aaf5f01052c0f7642b69b9978d7d6f8f2. Chain 2 (Bitcoin): anchored in block 960294 (2026-07-30T18:46:00Z), 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/FRX762198450.
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 0x3fc569e7551fa8641892c183900e3fda5f1638350f92bfbb337e74209b14f9ed. 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/FRX762161580.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1051bf1eb36fe7e65691893a52025ea16b27d67146ab890cd9804b86123c509b. 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/FRX762161582.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6c528467441bfbdf265ab736f4f8e75d132935263164f0614b199e329c46f7c. 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/FRX762161583.
Dance Monkey - Nono Chen / Kirsty刘瑾睿版 Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc6312f5e94e8591fd5994b4855279e4e0922af43b4a5b682cbd8bc9d1bf4e31. 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/FRX452196287.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2dc40b80d4a6d063849be388f6f94c7b40b8e9079ab79711aa902ae71004c917. 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/FRX452196289.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfe765dfa388493775cc97ae6aae268278f16a2eaaee7910f6ad6e366cb0e45a. 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/FRX762142064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57de631988c2e6140960206d6a0b205a8293bedcf005e74915fbe2227b16639a. 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/FRX762142068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb641bbbebddf762ba94035ebe5c00565285307bd54d129eba3c15c4a94d45dc1. 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/FRX762142070.