Dark Time Sunshine (abbreviated as DTS) is an American hip hop duo, consisting of Seattle rapper Onry Ozzborn and Chicago producer Zavala. The group is signed to Fake Four Inc. History Dark Time Suns
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 0x56eb85415b446f5b91fb5e317637e9e3289d72d0b29f56bcf33628c0e7f2544a. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8ff70e3e-e955-49dd-8456-ef8305204cfe.json and https://artists.proofprofile.net/proofs/artist/8ff70e3e-e955-49dd-8456-ef8305204cfe.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 0x8268a64af5096c3b40050fd847d180609d36ec70e63be207440738afd3f6bf2d. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/USA2B1001701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x062b56052900c57cdf64b38f8efb2c3b09642f46083e3d5d185965ee6685bc00. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/USA2B1001704.
Take My Hand (feat. Swamburger & Aesop Rock) - Single
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11755489f88237da7be374a387f246288e85f289857df43044269960a323bb38. Chain 2 (Bitcoin): anchored in block 956713 (2026-07-04T23:03:25Z), 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/USA2B1200325.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc1e2b343de43e476f29bf84f69ff9ec071619979470f41bba1de03080bcfdab. Chain 2 (Bitcoin): anchored in block 957919 (2026-07-13T23:58:45Z), 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/USA2B1200327.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe13484b47f5e31c6cf69392011b8afaeb74966d0ec2a877b2fda097669003ab. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T20:23:15Z), 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/USA2B1200328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4c29958613b394e83d8bcf675562dba4abd4b6c2d565808abebe884cb481523. Chain 2 (Bitcoin): anchored in block 958908 (2026-07-20T18:19:27Z), 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/USA2B1200329.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4637335e6232db4b46f1df5e7508a2b93a2eb6c1a936f713c82c7ee102e621b. Chain 2 (Bitcoin): anchored in block 958142 (2026-07-15T12:51:50Z), 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/USA2B1200330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91fa347827befddf14fb189b4254a3ab39c30004b6464104c97c62533cec9b4d. Chain 2 (Bitcoin): anchored in block 958913 (2026-07-20T19:29:19Z), 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/USA2B1200331.
Look At What The Cat Did (feat. Busdriver)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e59134721049d625251fc3375c00202078bf39d2f13e37417b2151b2173760e. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/USA2B1200333.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x393394043bb9a310e6d9bd3292e154c9fe3920a3a72984af5e42ab16c0c51ba7. Chain 2 (Bitcoin): anchored in block 958920 (2026-07-20T18:14:22Z), 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/USA2B1200337.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbcb1d7b0bfc2144a785527f1c3489942be4b3dd1407314e329730921402efa4. 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/USA2B1200338.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x368dc10df15a7e1336d8aff6196435f723b3a51819c0053d4c1701130921ab9b. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/USA2B2100018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe877af4f5adcfb57432c43fecf53ee9ef53d3b3289638fc451b7aae47634bf65. Chain 2 (Bitcoin): anchored in block 958134 (2026-07-15T11:38:18Z), 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/USA2B2100022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdeb3d2c2a1016e378fee3fd52720bf1d7623265c3a83e573777a63fd8c85cd2d. Chain 2 (Bitcoin): anchored in block 959024 (2026-07-21T15:31:18Z), 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/USA2B2100023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7292ab44d568290dfafe7a9313e067b7b6f8e383f74e89244024e85794211977. Chain 2 (Bitcoin): anchored in block 958775 (2026-07-19T20:13:58Z), 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/USA2B2060627.