Booska-P (styled as BOOSKA►P) is an online news magazine focusing on rap and urban cultures, with a bigger focus on France, notably by producing video content (interviews, music videos, etc.). The sit
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 0xe5868b1bd9ea98283d5d987e84ae4c2f843c7096ca5166e2655734f82f9ff017. 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/39c041e9-9db7-4c55-a060-793c6009263c.json and https://artists.proofprofile.net/proofs/artist/39c041e9-9db7-4c55-a060-793c6009263c.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 0x4e4eb65a4d8461c25bc8cf5efb3631e443dd06a53e697e0d0f453587c62fa2b1. 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/FR9W12366271.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90527e8bd7d4cce8600758156febf7cf52b23cb2f45342b6916de785f1e4f688. 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/FR9W12366275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e3da3440930515bde7ce61c036a572ad8b2afd1c16f931c0a90e047b0fb3206. 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/FR9W12366269.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70d7389e8b7eb718b24a4b2cece5f489df77b8fcc15ff7a0ea5cfe69fef23f21. 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/FR9W12366272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bc5e288742e0b555a1b151f84e243a0d993f25fa02b760c80b3c6402f5259d1. 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/FR9W12366290.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x588137fe8eac76d02b703b3e7f5bb1aa377785455d143542ab3b3b69036e193d. 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/FR9W12366274.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e4eb65a4d8461c25bc8cf5efb3631e443dd06a53e697e0d0f453587c62fa2b1. 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/FR9W12366271.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3928b9ee851fddc95aafd711a30dd1936c3d4c2e42cf3c7c22d851849bf5a863. 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/FR9W12366273.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90527e8bd7d4cce8600758156febf7cf52b23cb2f45342b6916de785f1e4f688. 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/FR9W12366275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bd0e52fbee021e76da6d56170d746a7f066a1ec87936a09174480758b2047ed. 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/FR9W12367805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca2f0c889a998490ba9f82e8561f9b9e87b2eae301b94126010a6f87b03a7711. 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/FR9W12366277.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd991a6b405622a69f2a2b0dffa30abaaae3cce6de4b1748250a9dc665bed1c6. 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/FR9W12366276.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36d9e633384f5643f7801784afbf1c4e9eb3cd08f4738ad5ae1d09635452875b. 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/FRIDO2210273.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1200b8607e5e2784bd47d02905faaf4264e76179fdc76b79ec946cc476a30ccb. Chain 2 (Bitcoin): anchored in block 959107 (2026-07-22T10:11:32Z), 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/FR9W12366270.
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