Boss may refer to: Occupations Supervisor, often referred to as boss Air boss, more formally, air officer, the person in charge of aircraft operations on an aircraft carrier Crime boss, the head
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 0x8908daa4c0db5b0b7a62bbd6439555d8e5c0754903659fc6b2a9e18414d5b7bf. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/caf706d9-388a-45bf-b30a-38dea2c1750e.json and https://artists.proofprofile.net/proofs/artist/caf706d9-388a-45bf-b30a-38dea2c1750e.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 0x15b5ee3bc52792c99565c634ec72784a29f8c53ba4a084944f2fc694cc5c04d6. Chain 2 (Bitcoin): anchored in block 958390 (2026-07-17T09:35:49Z), 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/USDJ20200464.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc936600be043292094e8d12853ebaf9bec3dc6c6b3d844ead824e99e89c4d08d. Chain 2 (Bitcoin): anchored in block 958788 (2026-07-19T22:07:06Z), 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/USUM71112433.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe15a5cad37d2151ea051cb43b99c675c073858600c0be659a4302429f28fa29e. Chain 2 (Bitcoin): anchored in block 959058 (2026-07-21T21:09:36Z), 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/USDJ20200466.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb07c8482efd346c6afcda11ad03327d6b69cda801d343811d27eb95a2be14ee0. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T18:54:07Z), 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/USDJ20200467.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda94d02de4bfe1ad8c85fd91a516160127e5f07028522e7b47a93953d3f3cfb0. 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/USDJ20200468.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa14404aec59618b559ec4db516c355c0962a51ce7445c7fabf62d4ac821b3c40. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/USDJ20200469.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71456c2e2b9720403f53e15b79a3fc49402ce0c122878c82c782dcb540948cf2. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/USDJ20200472.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9a35365a0dc03b9a6a478f420b9e9664c9f24643a7084cb7cdf0e0aac965935. 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/USDJ20200474.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3027422dbf832353d64588859235416bdd02632fd74dfc5e47fead8121ba9e3. 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/USDJ20200475.
Def Jam 25: Vol. 2 - DJ Bring That Back (1996-1984) [Explicit Version]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0db0491a71840ceb99d5cf8c1dac1e5d8365eceb0a1ebad41b3d1d6ae5dc3588. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/USDJ29300020.