Bossk can refer to: Bossk (band), a post-metal band from Kent Bossk (Star Wars), a character from the Star Wars franchise
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 0xa058c8e921efbc442a70e9a0299bf1c55eaf2e8443f4274f7cb5fc89712f9ffc. 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/158fb30d-c3c1-466e-bf61-b634b189d3ea.json and https://artists.proofprofile.net/proofs/artist/158fb30d-c3c1-466e-bf61-b634b189d3ea.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 0xb6a55338b716f7a87b100911b9199883117197018c0d78df33e1b7a060d963c4. 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/QZ22D2400030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8b68b6ff3a35181a800fe8c422a46fdf6cdc13fdf496df706c30ceff81baad2. 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/QZ22D2400033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd397d77c6b6008c7ea3f61846f0a088f5a8b27add2cf42214adc5c81b1ffdff6. 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/QZ22D2000045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec47e6242eac720659ff5f3b25585da918140ad4272b1f413298e9d244aea4a7. 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/QZ22D2000046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc898353a47c88f4809fe169866c19089f4ca4ff181a421e8747a715cc5708c24. 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/QZ22D2000047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x324551ebe1d7fa9d63de21d69f541641ed85817aaf4544540e63a7bcf2563c84. 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/QZ22D2000048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f8cdbcd48f3b5253b9be59d12024f6e4b920eaf5c5fc42260bfad00301406ff. 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/QZ22D2000049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0982d0ad302a430bef288e3b4f43dbb7c9b42726fbe47a98724009311f9f910. 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/QZ22D2000050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf16ae3e9f3dfc7e59644aa2594b290200a247daaebb6e0ee6cbcc0725cf1c0a. 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/QZ22D2000051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb821a2f05cb4a60439cf028ad5cdcdab0e49a6adf60a2c2f1f45d6aec40ca6f1. 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/QZ22D2000011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bc3f8d809dc708b7336eaf9ed4b253b432d9a8db5456f5a348054355a2f633d. 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/QZ22D2100012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a9b83cce766dfac0db001de4b66f9236f350941de7a9c238082f37acc2162b1. 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/QZ22D2200013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23427844d0daa9df48102c314b7b0987e5472efe5538e9a091d5f31eceb9f1b3. 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/QZ22D2300014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e50d641a7534dfed587283fb59ac4aeefdb176b703a2a3e66eafbe5ebf37fcd. 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/QZ22D2400015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb821a2f05cb4a60439cf028ad5cdcdab0e49a6adf60a2c2f1f45d6aec40ca6f1. 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/QZ22D2000011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bc3f8d809dc708b7336eaf9ed4b253b432d9a8db5456f5a348054355a2f633d. 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/QZ22D2100012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a9b83cce766dfac0db001de4b66f9236f350941de7a9c238082f37acc2162b1. 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/QZ22D2200013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23427844d0daa9df48102c314b7b0987e5472efe5538e9a091d5f31eceb9f1b3. 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/QZ22D2300014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e50d641a7534dfed587283fb59ac4aeefdb176b703a2a3e66eafbe5ebf37fcd. 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/QZ22D2400015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf9351f7eb014f3c9f834822704e1677d433dd5c048df55e9a4aa7a79c49f360. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/QMBZ91502978.