thumb|Raggasonic on stage Raggasonic are a French ragga group composed of Big Red (born Stéphane Joaquim), Daddy Mory (born Mory Samaké) and Frenchie They were discovered after the compilation Rapat
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 0xc88e1ca5fc5bd05194642fdc097c15f7c125ba2f9c09a1e6e3dae740f4c45293. 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/6282b785-4bd4-49a9-a10a-53250f71588b.json and https://artists.proofprofile.net/proofs/artist/6282b785-4bd4-49a9-a10a-53250f71588b.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 0x384fdd0ff010790edb3c92a609ed2177524b883594cac91a2c8aa03b00770065. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T13:14:32Z), 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/FRZ729500007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1835ca868d0c5f1c7f765f5f336518d709ec1a79f286e4f0d220a82735a7985e. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/FRS639700460.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf82a730dfbf4efb1184f88255d95cfb1705ad4e89288dc7787fdcfa540b23a7. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/FRS639700440.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc502cb00ca854f28a11171b60dc4f331ef9ece07bfdef8fd8b94b603dba48015. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/FRS639700530.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0273ca5bd1e9f0cefd657c5c3a1f1fcb42e2a1f219a41310972db616d52cfe35. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/FRS639700520.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f002ea1a19bf22e78be35acc46730494f653606b1df6bd4e1053a7062410c60. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), 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/FRS639700510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xade388f58c17812da9b154fdf5730313e3c8ab383d21a256a32475f3ce378c23. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/FRS639700540.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9898657fee5e162f2b24f93dd9c68ce35e1ec048f84a8f094733eb74c178a568. 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/FRS639700450.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcda2fe384e84ff6aa30f8450e8c851c689f26e85ba2994806c931f7cec3244e2. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/FRS639700470.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c9ac299a66be49798824379eba4747ce502ea31eaaed148643666afaeabbf4a. 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/FRZ729600003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5de977b7f95ac18494bb92dfe42cb0ea0c399ae7347131c9eee5ce41d2ab2e96. 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/FRQ041200007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9892521291fa5f8add7e3c2b0d568037d81c37d60325ff028474b5c70c92c6e. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T05:29:55Z), 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/FRQ041200008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf62f39d9453312c98b1f4cf2afa750e086deed659d5cc77d087d1a75702cc25. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/FRQ041200013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf18e08d070be814050c5ac9ccf8aa516410f714768a1e46fea72ffc5453a9726. Chain 2 (Bitcoin): anchored in block 958945 (2026-07-21T00:35:28Z), 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/FRQ041200015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4f424d7c879da60baba4d62e9cc660f1355541412154257c39d36e7b555c45f. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/FRQ041200021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b787c51b82cfb0ed7271756f29f29f9ee7e55ff6bbc5a218aaad6046175d84f. 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/FRZ729500008.