A protostar is a very young star that is still gathering mass from its parent molecular cloud. It is the earliest phase in the process of stellar evolution. For a low-mass star (i.e. that of the Sun o
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 0x57b8a68dc73d845e4d7315cf931838e480e2c012568b1f9e64cc6822ee3afe11. 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/2200b624-e952-4b46-945e-d448e8e506b5.json and https://artists.proofprofile.net/proofs/artist/2200b624-e952-4b46-945e-d448e8e506b5.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 0x5316c1cc8c5c196a7d19646da6db1d6a61df578aaf60399536562590bb10a376. Chain 2 (Bitcoin): anchored in block 958965 (2026-07-21T04:29:05Z), 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/CA6D21000318.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bf928753a5393db354401a389507cbddc5c6451fdbf710d692c8b9b4ffdc773. Chain 2 (Bitcoin): anchored in block 958867 (2026-07-20T13:55:38Z), 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/UST8K1426290.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63ec6cd90663ed7ef8c46e7abb0af78633e93b48d7158d1ecc1ff36158b6f55b. Chain 2 (Bitcoin): anchored in block 957876 (2026-07-13T16:00:32Z), 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/CA6D21600106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7194807ff7cf47c504fb337d9a8a543681f4b82b22befa557b2b721c77261cd. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/CA6D21800290.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48af1e3dce360da54a506f337c05868103f4f0678782de0c344e29a887997502. Chain 2 (Bitcoin): anchored in block 958832 (2026-07-20T08:23:52Z), 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/CA6D21800292.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc725bfaf496b37f40d83f34c194f1e11a51f78567b20f6ae6b4082a8e008c2e5. Chain 2 (Bitcoin): anchored in block 958991 (2026-07-21T10:04:40Z), 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/CA6D22000052.
Time (ft. Teasha Huns) (Protostar Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccd940090339b46ccffea5b425118f8a3f6004dee8f8b703a62dbe02da5a8362. Chain 2 (Bitcoin): anchored in block 958350 (2026-07-17T02:31:22Z), 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/NLCK42219771.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc083db7869cd4d299735120969bdaf5adc49499241f98c0dc3e137d841551e6e. 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/DGA082254094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2807b9c4d52449295ed7a52bd5aca8e78588fd9222e9fbafd5d5e907e4edec33. Chain 2 (Bitcoin): anchored in block 957876 (2026-07-13T16:00:32Z), 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/NLRD52355107.
Rocket League: Sideswipe (Original Soundtrack), Vol. 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5f2737ed86639cea6f3593f67883debaf26af2f820689b32d11d22d2b5cf38c. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/CA6D22100400.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75d46559b7176f7b2efd91b0280e861a29ac8325a61b42025d31a23d41307da1. 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/GBKPL1897107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1347b5fa86b8cc007aa5ac74c231d92ff98e704f6875f0597d8a5202930b2e3. 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/GB2LD2310160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8b885a62733886ee539a3c3cd2eb32307879cf22cb04a41cc30bfafa144b894. 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/USA2P2126995.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15758196dec9788909c0a89479ac85d07543446ad35258d0af9c901775129120. 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/CA6D21000198.