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 0x76d9774ccdbd57ef6ff9097c61a9d7a4ed4e234689cc668c8a8351648393778b. 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/00a35645-b857-4213-8049-a043e14428f9.json and https://artists.proofprofile.net/proofs/artist/00a35645-b857-4213-8049-a043e14428f9.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 0x835d7b80d81a03ce93fc991f0108f0d7b4cc5149aa771345d6beded670fc6a35. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T20:12:32Z), 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/GB8KE2321951.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdeb4268366b7c382578ed5b83175905b418e8371a3d2133921fb2befdd80d21b. 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/TCAHO2363475.
Forget Me (Annual 2024 - Viper Presents)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7916db9e212fc5d6f051f5d105a5d6f7347e9303870b855236e9e64aeb3643e5. 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/GBTMZ2301211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x383f45d970b49b80de592e9efdb3299bee26ab69e5288fbdb2d2363807342727. 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/GB8KE2327766.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46deceafd858a0826962a219c220794eb81c07cf0b9fae40d2785bff04ff2139. 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/TCAHU2460178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x936fe2471a79c5fe9bb9e20b72a197a8d2d591cf9d258031d55da7524df141c7. Chain 2 (Bitcoin): anchored in block 958378 (2026-07-17T06:45:39Z), 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/GB8KE2402194.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x772cd8ef5cb685365015291e85c4f010401c0f2dbba9b8758c05c6a58f631c33. Chain 2 (Bitcoin): anchored in block 956485 (2026-07-03T10:53:04Z), 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/GB8KE2409553.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36ae33a48fcd8ad9fbc717045340d330216bcf709945ad9e71c12123d47073e4. 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/GBWUL2406802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa308134b91ad9409c5c467c375877d28a5e8a0a4694febf153c0ec5b4cff36d. 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/GB8KE2413989.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf62acdba9bed68fbea85dde76d1bbcdabacf5f11cd1a6e29ae2b440c908b024. 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/NLCK42412077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9018088040b7079e21f1d8ac35a113673aa943aa0a9019147c1f57999bee77d. 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/TCAIN2423511.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x089049523d2240b68b5a1124c624dffa13c685836b6ebef610b5e9c6786f18dd. 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/TCAIP2462551.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d509a0fc710191f0012c9de3760e3377ed662c4a1d9e9401e9bf337481dcfa0. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/GB8KE2423204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5892b8281a9ef42051658d69e919355c5207a1d427ccb504367a4902dd8550e2. 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/NL3M12412390.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b5e59e78bc81fbdb261780a1fdc854cd8e6a7918a3ec78f013d55aef1819d7e. 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/AUCN32500240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x772cd8ef5cb685365015291e85c4f010401c0f2dbba9b8758c05c6a58f631c33. 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/GB8KE2409553.