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 0xcaf4ae00cca44b449fea30e8743837a69c45d553f409e03d0abdd655fdab8a06. 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/e2e85b93-286f-40e3-828e-4d0af9a4d5f0.json and https://artists.proofprofile.net/proofs/artist/e2e85b93-286f-40e3-828e-4d0af9a4d5f0.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 0x967e1a89c8358a67642b7897f5f0c98f65dd46bc56f47212f1534b258e070eff. 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/DEBY71027160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x412a251b31e40e0843d992c622bad6a072cc517931e38a0a0579f842eb1f32e1. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/GB7YL1712102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd002b7d1a948118bc773ab18a440bff82d73cf4953bfb08b56687d6505564a1b. 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/GB7YL1813201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc3c2e132f323a9888854278f746f4b009966e16f9a383dcacf1b2336fa054b3. 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/GB7YL1813303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd291bbdc1b310db5293c4577973b8388e20114469e97b489442de19192cfbaca. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/GB7YL1813101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc91be3812c7df5e014342c1e516233d110c4e0710cfb6cc330160ae8ed2a513e. 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/GB7YL1813304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff34e52d8a27b6c41020990bc1eaa721cf0e965b0598ec22fdb253dda8fb07d4. 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/GB7YL1915501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb7c6b345d806334df61547098b1906c4240c2ab35e1f02679152535f3eae2af. 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/GB7YL1915502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18ffc986f286220a3b7a2f518a6c3eb6df060630514885f43be09484006b66cd. 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/GB7YL1915503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x891a8aa09e3dd22b14e45309711a08acfe71da8fd11a4a655d3da36797562d8b. 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/GB7YL1915504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf21a07221534dde1dc7f4cdaf46de36f5c3dfa47dc9746b26cd0c4e5deccad0. 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/GB7YL1915505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x213b280ffd55507382b76d0e6e4648bfa79838ab1166ba5f9444fb5b5fdfb50d. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T17:53:07Z), 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/GB7YL2200013.
Trials - NGHTMRE & SPACE LACES Club Mix (Mixed)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17c6127a7d6ea7c2ba7b2a51e4792343163c028d483804af396516625db32b9e. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/GB7YL2300004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf573575bd39e833cd3ab6ee2164a02469b02a1025e8bdd8a37f932cf24970c3a. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/GB7YL2300005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a7fb5ef192c182abb54f49ee32435a832f573375fb65293992a1e8c86390330. 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/UK7H21500109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9eba5a6d0e252449f5bd8a638fb6435a582fd9faeecba3dfc51d57774375498. 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/GBDLA1390022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cf28dd50ee025b6e98dc8ace72f0bfa7d26dca975bd0e513aadd412aea4cfaa. 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/GBDLA1390013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31aa68cd936461b1ed304a34cf3c0f07fb91b336ed2bb652287d3f7e322b837f. 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/GBDLA1390019.
Destroid 2 Wasteland - Barely Alive Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a4920282892591e80be5d8280a8d98d7e521e203d109f73afd82fc9a5f1ab39. 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/UK7H21400002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd97a27f5b3f046237911d939491dc64e9e5db5692d09b70518eec2c5f8d500e4. 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/GBDLA1390014.
Destroid 7 Bounce - Mayhem & Antiserum Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2d506cc16a795fc661ae929c0fb60d63dd4aa83de2b3656d2899e2f3f603fdc. 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/UK7H21400001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x046aadcba5315f4b524c53fa80ed195c9d86e74777e4ac12640f8497248bfccc. 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/GBDLA1390015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72e0e723cd9f9efd04550f7dad4f24bf8b0a643336af09a0b9c2b92e5bff0a3e. 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/UK7H21400003.
Destroid 1 Raise Your Fist - Ill Gates Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cdcf3f75b0e1fa2f108ae496d821fa73859a9efc7ee945c40995b7ba4f338a3. 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/UK7H21400008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0addfd912b809ca02f01e6660e2b67cf5d4835817f2b9fa176e8b7cfeea78da5. 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/QZHCR1900015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa55fee33f3c15cb63664107b109c962299094a2133d69f149a11c81a459711de. 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/NLRD51831605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3eb11ff05a489e29fca01771c0becdb36dd6be316f4c08de5ebaf7c4a326ac99. 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/GB7YL1812801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c6d79c0840c59f973beb2bcfd997326cc3944887108c6b69035fb55235b0a2e. 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/UK7H21500008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa144630d206a19bca6dd638c4c7f9fc04442b541b7016c8cf25d4be9ff35782f. 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/GBTDG1200482.