Complex commonly refers to: Complexity, the behaviour of a system whose components interact in multiple ways so possible interactions are difficult to describe Complex system, a system composed of
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 0x5778d91ac5157cd906e246f94d61bb6360235e5c87be568019d8be4fe86d0308. 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/07c78e65-26a2-4794-a587-c1d93931a258.json and https://artists.proofprofile.net/proofs/artist/07c78e65-26a2-4794-a587-c1d93931a258.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 0x0e5aae5350b7266546c4df92c84d4a6536e70f28dccea1173797d36ed77679a5. 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/NLS202300260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x711020e8a03a8e9a1dffc883a200bdcd709908f34f4afd98611d2021aca31312. 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/NLS202400278.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x367b3735290fbd5c924d1526ba527518d547974bf1ddc08b3ceac931bb421721. 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/NLS202400280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a2969308ca7fd217ef63cbd59f9407460eb65c93c495934f6ce6505619b0d15. 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/NLS202400282.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2c8d9f2464d3b75657d2d623a9a21d19eeab823a70e7460bc4bd9a19161bc38. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/NLFL72400357.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6aa989d532c9428320e83e1ad06a846c8af4584dcdb24187c7e9818ea9cb8c65. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/NLFL72400315.
We Will Rise (Apollo's Ascendance Official Anthem)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c42603bd6e5d34b30e2c2416a7ad64e090262ddc93576008deca1776aa4cb45. 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/QZK6J2456416.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb42dab683d7548ed78daa1ef831c1db8bcb20fdb7dac48df1446774ddabc18d7. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/NLS202400125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x926515c186bc605b23b5c0940e756bf88c89b12336cc4749d11d4c8b26b1ecb3. 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/NLS202400004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5068592c1d8989c27db0c2f7cc41c3d58f75e2ed07225d3dcea6c248ea72f2bb. 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/NLS202400006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60c1027dc04d89f8688e5c66ccb31c83f8271be704139c3f00c0c63078b4cf00. 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/NLFL72300919.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a5aee393e89e0bd9023447ee51e6b3f5a2cfc1d73f3662c179636d2f3aecff6. 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/NLFL72300921.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18f31de6facf7d54f2dab0a18e075d2f2ce5fe762a417f07972b1d4a7adf26b2. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/NLFL72300923.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0755b7446323ba710c7349eae7198a1837c4381e282e7237aadc4487c2f8528b. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/NLS202300326.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2875206f5bc060e5d8e6e31cbadf0248ebb977c7fdbaf25bb19c19a3f97ddda8. 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/NLS202300168.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6913b663151a6972bb517310ba4817d7b6f2442927a44e3df57f5cc26513299. 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/NLS202300170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5dc7c41f330791256b569bbf68a3106fb2f8788e403e3e30d0e406078195db05. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/NLS202200304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd94f299060a2cffce6527f23fd3ea5baf0af59050077f6052d3677e23af301f7. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T15:03:54Z), 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/NLS202200308.
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 0xc6eb7a3d59586a58f670ff1a7ceec950ed8b3fc642b6e4481be9f36f71bebf2c. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/NLS202200306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5698d315296c338989f5f52abc8f1a9902a29dce6d823cd3050e1b24a6ed533. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/NLFL72300899.