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 0x54f5df4a83e59c23f816104bb4110fb7672f9b7f07124b9c339a663895726c5c. 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/47fb1e7c-c182-4c24-a402-1027a890096e.json and https://artists.proofprofile.net/proofs/artist/47fb1e7c-c182-4c24-a402-1027a890096e.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 0x2fa103f7b3036d25befe7faba23225f3ed86ea07a6b27d612d73f111f6370e84. 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/BX46W2100077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41f58f065cccc30e69c654bc49a9198b409918637be0150a4e74a4317790f632. 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/BX46W2100078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3e7d5beed642a32aaf7bf5cd1b50fdce7ad89d35eddedebc35359d178ae69c6. 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/BX46W2100079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98992074038bd1d1af035ec57300ce2b09a1e08be048b7ff9cb2a9d59037f8a1. 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/BX46W2100080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39b4a958342b6a3112a115725eeb35062b9d96a968a194559b63c066b5f61f3a. 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/BX46W2100082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30db7ba202503b6047bb0ebf71b1555330ee94af9b86f03738f294b3cc29f512. Chain 2 (Bitcoin): anchored in block 960113 (2026-07-29T13:38:16Z), 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/BX46W2100081.
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 0x4ba851810ca3fa7eb20a810e2d07e1740c53340f0d5709064dd6c6ceadf6c45e. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/BX46W2100083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x026519c1648280cfc955ab65262f20dff3f27927dd031ba9bc3eab3fc8d43f5a. 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/BX46W2000025.
Transtorno de Estresse Pós-Traumático (TEPT)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc1d3b4a45c676a9929f1d786c582ec796adb41376a497fcf875fa989930e150. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/BX46W2000028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf59e21ab926dc5811d2ba3605361d01bce672bef749f5774d6ad5b581448797. Chain 2 (Bitcoin): anchored in block 957055 (2026-07-07T15:12:44Z), 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/BX46W2000029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bae33c21da75851fe16c4f766dcc575d5150abc215727f7618542c106dfb557. 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/BX46W2000030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e33debe1060191081961fed37e7dcdbc8900b3bfc533cd4b584dbb203f465d9. 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/BX46W2000034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4eab71c5d278a88f55a767144e9cb1bdb1390fe741f641c37353ba90cf21692. 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/BX46W2000035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40aaec175e35bf4bdf61b0363d7f8410dc969a126eceebf4779c1aad0594f0a0. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/BX46W2000027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb027a619b9ce34ca6ac0777726a4e22e8406a4d9845276af6f5eaa0568a83437. Chain 2 (Bitcoin): anchored in block 960164 (2026-07-29T23:23:05Z), 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/BX46W2000031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1d3f40d196e02385c66681089ef0be200b4cc39690c9d5ad7f137c8236d9a18. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/BX46W2000032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a7d2fb1365ce36337af9f57dcc1053a0bca8dbfd8bcca8765834a2a0b7ca956. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/BX46W2000033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b0d462cd65c6bb9e131faa2eff3760bc31776008604f09fbb04d3139dd68f08. 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/QZ5AB1636651.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4e5b91fc2b70c517289d6d0e7a4dae2272c4c2dbfc683e6b722850e1e676a39. 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/QZ5AB1636661.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18289eea2fe576ade7fafbbbcb347c1919cea2cdcd1756378aef6e7ef24a5395. 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/QZ5AB1636665.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56e33f85a843516146e3d416246cee29079ca36e470b5286606578bfb261cbf0. Chain 2 (Bitcoin): anchored in block 960427 (2026-07-31T15:59:18Z), 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/QZ5AB1636652.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb304e0116869e671655397456bf47f3260acb30c9c2ef71864fc4382f9d4608. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/QZ5AB1636653.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x961501aad1c6ab995ff985e9b766dc845e1752ed26a2c14003c6033fb9359ebb. 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/US7VG1579778.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2498b732b531f35ab3a18ec9120ad588be27fef99d0cabaa1b580c852d0902d8. 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/BX46W2000045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30c299e6d7b54df5973a630dc011913db3ef3da6fd177bef48224322fc818425. 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/BRE2Y1600008.