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 0xe0babbaf39f5a5eb982b7782dd6963392e9e8a0f255a1148cb0e0bd770f77570. Chain 2 (Bitcoin): anchored in block 953636 (2026-06-14T13:03:42Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/35cb241a-2b04-4d53-b5cc-d6491a1a48a2.json and https://artists.proofprofile.net/proofs/artist/35cb241a-2b04-4d53-b5cc-d6491a1a48a2.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 0xd4d1de02fe44c190185788ea1763ef2424ccbcb405ef58a4b84713708d703c27. 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/IL4060800139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28ef1896167f01be80508afa1739448cf397719053fdbc8c473e1f28a94991ca. 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/IL4060800140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a2204897522ba2196fda12d26a667cb7c34a93dff34bbee9c5249b1bd7abca6. 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/IL4060800142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bdc1a24b9a3d1ceee8c22afb2b78ae2830a835d8f57170bdbe2121b5a6f40ca. 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/IL4060800144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae4300a978494198ff8f67f251571032905a3c01f2e7cbcb4ebe0936c6cec161. 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/IL4060800146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f387b2e47f29d10a1e3a5495818a407b06cf75eb0d1692ad1d163cd5a9fef4d. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T19:47:25Z), 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/IL4060800143.
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 0xa4e4f99611ad985414239d224df5f38fb8342321805e42ef0acc9887891c721f. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), 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/IL4060800141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae60bbd58ab8b06f7bc138b415ee5413d21ce3ecfe1ffd3749ee01a4d412b57b. Chain 2 (Bitcoin): anchored in block 960240 (2026-07-30T09:57:33Z), 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/IL4060800145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3716a8c0da74f33aa250b9e87f62fcdf2005e8560d15974fb577511037a82885. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/IL4060800147.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x898477d4409c980069bd9ab9646b15f75e69dfbb6caf74277eac21b76e842c47. 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/UKR6V2442314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x172d6831dcce00d278e384edd651f7a063d39604ae35205027f9f14627088682. 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/NL4VT2100210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bf4780c089dd04cda01eaea4b65b12a56252bf191f7aed36772400bb9458a0a. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/NL4VT2100211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd308450ce046d4cd1bafebc76e89e005e10eb708f8cd6486ccb489effae48c39. 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/BEY921707246.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ee56fec4a64bcf044334e52b7497ce1cebe868143815395fa9d4ceec7fbef94. 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/FR6V80584129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa667a0ece1f51179b3e5a5e5bef60b19b6ba03e4b383567426259f78be885c6. 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/FR6V80584130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ac63a4b428a578a459cafd91ab98ed25b557c1b32bdca1cf1779da2fc1b95ce. 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/BEY922027290.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05e71a0269ed6a2b1eba86b682602a0e246a3043264c6c3bca16a89cc2186160. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/BEY922007243.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x220bfbbf5e6aa119c08f9ff77f39cddbf1122474036eefd03257b5b2c357111e. Chain 2 (Bitcoin): anchored in block 960099 (2026-07-29T11:30:20Z), 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/USA2P1102980.
Diamond Sky - Indra, Genetic Syndrome Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd66077cdeae505c0596e6447de05a3d77dcfa505e343b8900c75a415917ef83e. Chain 2 (Bitcoin): anchored in block 960266 (2026-07-30T14:44:50Z), 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/USA2P1217720.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc060b818351f17d973122ed1a9f32e9dc6d41e7b2f73da93d832c45ac396980. Chain 2 (Bitcoin): anchored in block 960198 (2026-07-30T02:21:55Z), 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/USA2P1217721.