THEOS, which translates from Greek as "God", is an operating system which started out as OASIS, a microcomputer operating system for small computers that use the Z80 processor. When the operating s
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 0x4aeed02dc82614f8b521a10289874464381a236a5eca23810a34288f11350b66. 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/4dab2127-3702-40c2-a371-9b85fa6bd70c.json and https://artists.proofprofile.net/proofs/artist/4dab2127-3702-40c2-a371-9b85fa6bd70c.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 0x4390e285762c8134c0c77978c57ed1f745443727c2b6757bf720d09580bfda3a. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/CAENV2047680.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f8a70178107bcf32b550477db132365bb2198b55a40f569bcd037af79a4f737. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/GBKQU2097146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa75c296893c162d02bce0a62690676fa6ea7bf407533414dd8dccc9fc75f6db. Chain 2 (Bitcoin): anchored in block 958733 (2026-07-19T12:51:21Z), 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/GBKQU2097147.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc4a5408550a3777d604331f7d8afb4d533762d1f7cb402012f92d29b95ced30. Chain 2 (Bitcoin): anchored in block 958736 (2026-07-19T13:04:09Z), 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/UKXN21954009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5aea6847becea347ffb35478107441313c1e6ccc7bfea561ec4a4bb6d49aac41. Chain 2 (Bitcoin): anchored in block 958945 (2026-07-21T00:35:28Z), 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/CAHQJ2010631.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa847ec4246497b055d112f7168992bf7fa4b56f657b80c728a628af421188c9f. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-19T22:55:52Z), 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/UKN6K2100038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b224f3fd6c36a7e976c70964e1e8e31cbe6bc6eb0c1af08f10376a7c438b409. 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/FR96X2262135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f9896282289476a24d5434b9361c67b2007fbefc00a9f26c553d6eb83b1891f. 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/FR96X2262134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb43da67f9b8eb1a824b097a8e961cf659cd1d4358bcebf05ebb7080176aa0591. 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/FR96X2262132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd28141fd6b06126765bfdbb5fd8dbb6f9cd29c9f8e55c7ed32b1dec3e7c577b1. 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/FR96X2262133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f9896282289476a24d5434b9361c67b2007fbefc00a9f26c553d6eb83b1891f. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/FR96X2262134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b224f3fd6c36a7e976c70964e1e8e31cbe6bc6eb0c1af08f10376a7c438b409. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/FR96X2262135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x041882e5500cb7b315728d0b5aeeb94727db331e3bebe6ae679040d370f99a24. 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/FR96X2262136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ec0650331a60eb09dcf453d734f2f7160e37c4a1d9e9035585a6e0223d1a731. 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/FRX282252519.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7910d87ce10e0cdbf799b470616642e0470444f9cb526e154506028b28e7908. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/UKN6K2202546.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x129c67fb537ee48265990ea75fdfb6864c3caf701b5583ac1b3b3a57ca2babb9. 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/UKN6K2202548.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b4a90ab50ae6881d774420096dd1b652997b20d45b0066028dd22d21411e998. 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/UKN6K2202549.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58fea015c9b1a2dd530f43656add7453ff5e5116854827e9d6f35480e0a32a0f. Chain 2 (Bitcoin): anchored in block 958362 (2026-07-17T04:32:48Z), 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/GBKQU2398852.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x915402063d2db5524b42e6a499a7d69b8622feb91f92cf0278ea49c398bfa887. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/DEY472572718.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x027db6382ec6cb7fee502f2c90fa3cf172a2c5bdf2511df2997569f60119f4f8. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T02:22:58Z), 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/NLF712502885.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb683137a5b7480c03e4a34696d034836e7725f490e3d80ead9e6ad69b13f742d. Chain 2 (Bitcoin): anchored in block 957780 (2026-07-13T00:36:44Z), 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/NLF712503334.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ef8b7894f06aec942976c1ee1feed3ee769139fb2bce132a644a4dd3cd04265. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/GB6LY1601981.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b3203fa517a8bf2f7120f7cba1f7a52f00a1a68b0bbdfa591472fd3fafaeb26. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/GBLV62028094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4767da22bfed36b273361ad25e9d0f1d0d0bfa280eb9b0d7a83595e63e41cc4. 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/GBCPZ2322344.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcff9f4c36d14e155429e09b5a8c4b02d344f68003041d258d19bd85b8b92380e. 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/GBCPZ2322346.
Set You Free (feat. Queen Rose) - Extended Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31f009af5fb5cd46b5c743c732550dc689518801f71719586ae75f87156288d3. Chain 2 (Bitcoin): anchored in block 960389 (2026-07-31T10:20:10Z), 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/GBCPZ2322345.
Fly Away (feat. Noa Milee) - Extended Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc8424af0a0c7b7b9f602a0a8c364cdf3525ade57d16587964ecc7dbf1d81b21. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/GBCPZ2322347.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e021dddf8b3a42bbc4bf8451448f9670c1278df5702f2f1dfe41e93070a7f49. 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/CH6542150467.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47ed2662da020d923c7ac5b7a24e0160d4ee419f26638b79596bc7ec0342f555. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/GBLV62207668.