The Baroque ( , , ) is a Western style of architecture, music, dance, painting, sculpture, poetry, and other arts that flourished from the early 17th century until the 1750s. It followed Renaissance
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 0x0484f103a59e0797c9020732545d438abe7a6c3822ef219edd4f8fbd8a6a4f40. Chain 2 (Bitcoin): anchored in block 953778 (2026-06-15T11:57:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c646ea55-f78a-4417-85d6-335252bfb9bf.json and https://artists.proofprofile.net/proofs/artist/c646ea55-f78a-4417-85d6-335252bfb9bf.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 0x23ff2c7de7210b52674a971b7e06edc1c1ddcee3adc6aceeabecd26a3e5fadfa. 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/JPZ922000769.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15522a919dfb187d2cc19f3ca87d44f9756829c453aa853582010eb76f1d82dc. 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/JPZ922000770.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa87c6476e49892bc7e6a86fa1dbfc1c6d7e542c3085638ec05eb216a116f8eea. 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/JPZ922000772.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68541a6b3bed8b285c90f62982c561f7e7701379e2073cf4cd4e86b7f74afe61. 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/JPZ922000774.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x217214258c9d5de330482723db6f2a7c4d42159c15d13c9a450d380815cc158f. 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/JPZ922000775.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa92e56cbdd9d963afcad51e3fcf75ca20ed8feb6477b484c323348aa4957b409. Chain 2 (Bitcoin): anchored in block 960354 (2026-07-31T05:48:18Z), 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/JPZ922000771.
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 0xdca71daf9f0dc878279057e9551dd4e3f3781ac084e16a8ffff5d5b16b437bc0. 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/JPZ922000773.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddda73699fa979f32cfdd3e7d0a694072cc2d58b4cea658451997ab15d8cf6be. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/JPZ922000776.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd13b1a73125d6b17d5d3bbf0ba9bf59544683f6351d811d16a20672d775d8a01. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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/JPZ922000779.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9066ca836972f1b3d41491bc3b39419cbf713c54c4de1e4c6703efaf2f0f7425. 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/JPZ921908495.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46c4f7f0a95026f2f45eeda7312c4d5772fa1b5b7f35f5b2a1af6d37aa38d67a. 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/JPZ921908496.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f1227c00821545554c3f1dd57dc18f8862f3b312a9177c54aa801750fa3312c. 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/JPZ921908497.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9861ee3e5e7d1ac31c90a212b10933db882cada92aa32853ad7af751f31980b8. 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/JPZ921908500.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad9eb80b6222608a8b4eeaa474e35f68e737ca261f1c6185034e77bdd285291a. 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/JPZ921908501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28d8f3bb73b84c5bec0f626e159c331b569d12b9d738ffc2e83302e6047edf54. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/JPZ921908503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaeeebeb159b9e3b158f820512d427bcd4d1e01ebe89b2b42988fc27f7d78a7b4. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/JPZ921908494.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebd49f6ff998c86990b94f432f8fd042f6c54220c91b7356e2bb25a4878bc419. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/JPZ921908498.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x807b97fb94a62a91e5ae69c923b9db0132e3b689e58fc1a7f5479bd160ae5378. Chain 2 (Bitcoin): anchored in block 960199 (2026-07-30T02:30:29Z), 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/JPZ921908499.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25c88426a9902898a794e969c5e999c2b5c7695594b4ff978e3d92ba49b064f5. Chain 2 (Bitcoin): anchored in block 960314 (2026-07-30T21:00:46Z), 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/JPZ921908502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe7b103472827d85a7f4745bb5578b54ca0aef6cefd94176b5f6c1406ecb2e37. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/JPZ921908504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb136e7e886cfeb7d5262111b92235944ac7e60ec53f5c2b69d9196212cb6c62. Chain 2 (Bitcoin): anchored in block 960389 (2026-07-31T10:20:10Z), 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/JPZ921908505.