thumb|Nico Suave Nico Suave is a German rapper originating from Menden, Sauerland. Interested in hip hop since young age, at 16 started writing music and formed the group Provinzaroma with Dabru Tack
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 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 0xa930facb4000ed68a8d72d74b3516412c539a8d0b6c453ee46ebea569d42a867. 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/fec3ec7d-fdd9-4310-a6ad-cc2f283b93b0.json and https://artists.proofprofile.net/proofs/artist/fec3ec7d-fdd9-4310-a6ad-cc2f283b93b0.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 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 0x3bf20d1e404dfe57883c311eaa2b511f32276105d44b541c3dac1a5dfc69bbb5. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/DEDL80700361.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a66e9c091b9c7ca169abe06d2b6c7c43dc02294351518c4620d5f6f00dad220. 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/DES311400386.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04fa3d2cdcdce46dd21137779248b685bcd15b7cdaf6bddd9297679482303449. 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/DES311400342.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ed4a70dba841d8ae057cd4501489dabc1743163065d6ee1228b365c47fd8c1d. 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/DES311400242.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x143169efb7331d16846c47c4d642448b679419a65425ba38af90520bafbf7f79. 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/DES311400346.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd2dbee4e4895a09ad401be9a5a197d12bc8bd19643fc3bcbcf504579e2baf91. 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/DES311400383.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3fabfb1997091fec9f131699648a6692e39e8d789c43d78ac89444d1f6c3b27. 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/DETO31400058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a66e9c091b9c7ca169abe06d2b6c7c43dc02294351518c4620d5f6f00dad220. 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/DES311400386.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb47e4f4449951fa31bcaac7696f574a34911c7e25278692fafcd661717475886. Chain 2 (Bitcoin): anchored in block 960200 (2026-07-30T02:37:10Z), 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/DES311400349.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb18299fa77badc93a12d9a7fd71105cf1bd1f618a2412f06cb241be24ef848bc. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/DES311400345.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e953107364aac50a39f983d6f4d4bd8c7072c77de3ae5c181d9ec4832baeb55. 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/DETO31400053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04fa3d2cdcdce46dd21137779248b685bcd15b7cdaf6bddd9297679482303449. 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/DES311400342.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c1c36bf642ba0de2a46ed442ac74e6715ce1955fabb447d7aefdda32a2faa35. 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/DES311400344.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ed4a70dba841d8ae057cd4501489dabc1743163065d6ee1228b365c47fd8c1d. 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/DES311400242.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa478bf6c88ca9fcf417912e90f9a75cb13c1a048f51b1b2fe6c3bc510256d9d5. 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/DETO31400052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ee0bbd896381e37d6f5ad9fdd6d8375fe486185ec5ce1b3f4aed22ad126e616. 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/DES311400348.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49cc4e3032984942ceebfc8a490558bf10ff1b60921d2fcee688cb05c649bb79. 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/DES311400347.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x143169efb7331d16846c47c4d642448b679419a65425ba38af90520bafbf7f79. 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/DES311400346.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd2dbee4e4895a09ad401be9a5a197d12bc8bd19643fc3bcbcf504579e2baf91. 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/DES311400383.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc284d232a7c9edcc11cf60a661d94831de13540dfb95c4484c5d630c6174443d. 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/DETO31400054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d4086e2030c10dca4193cb5a6688d58c9f600f2fe6ebe91835d3a6b02ddfd9c. 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/DETO32100012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76456bd17b6a3ab03302d428149200b6a9da18a7c7161138534b7a4c2e6be559. 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/DETO32100380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85dab4f42447dd81796f68057c0aaedd0e5c87104d87faece66200e2b49aaf59. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/DETO32100452.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x153c88d89df0245c7f415894d25e632ff32b45e6de519450b94dac6244208a28. Chain 2 (Bitcoin): anchored in block 958838 (2026-07-20T07:01:21Z), 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/DETO32100011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d4086e2030c10dca4193cb5a6688d58c9f600f2fe6ebe91835d3a6b02ddfd9c. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/DETO32100012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe81bf4afa66d5519da3c93025b2bb30c36c73a403e4e05d1a6606cf152a928d3. 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/DETO32200122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4a71df4b18664204654a18b8a235188bb449bae4410d918ef93cf038abd5e3b. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/DEWS52300012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0422322dce020d39703d69f37505d18bb1b0d9b5d914a02f8eeb4b2c8237ac33. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/DETO32400542.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0422322dce020d39703d69f37505d18bb1b0d9b5d914a02f8eeb4b2c8237ac33. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/DETO32400542.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0422322dce020d39703d69f37505d18bb1b0d9b5d914a02f8eeb4b2c8237ac33. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/DETO32400542.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x432e4538bfbbee7ce04e137d79091184106c40055f049d08a9da5690f72971dc. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/DETO32500292.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x432e4538bfbbee7ce04e137d79091184106c40055f049d08a9da5690f72971dc. Chain 2 (Bitcoin): anchored in block 959155 (2026-07-22T16:43:41Z), 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/DETO32500292.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf173f65aa4d16f735da44d6fac62297381115af6b57ab69453194fcc07f8605e. 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/DEC610701167.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8970b5a8ca9e2cdc8570c685e2c359bb30070dd67ba80a41287b88e1e20061a. 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/DEUM71800497.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb43a4f42b939021b1a4ead6d48114084d4d270094d6cbc8c09595fef648d0be9. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/DEA340100196.