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 0xfe85389ea590eccd49d243190273d54052f46275a7d12cf78f5f9b96eab1ffd1. 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/bc66a8dc-ef95-4777-8ce5-610661afdb7b.json and https://artists.proofprofile.net/proofs/artist/bc66a8dc-ef95-4777-8ce5-610661afdb7b.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 0x56b6bcce1390592eaf277a4fae4add9a550f486712ef4d538e9753ec55edb776. 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/USWD10527634.
Mickey Mouse Club Alma Mater - From "The Mickey Mouse Club TV Show"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87edf94a947664e290d6af899fc4374ae9afbcb20d4a6e0d050fe7d8563fe1ce. 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/USWD10220412.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfb3d7b30610d6453086a86184382175120a46ef4be587fa9bfec878dafbe0c3. 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/USWD10527574.
Quack! Quack! Quack! Donald Duck - From “Mickey Mouse Club”
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca2df96fe603c41723ff94781125f40a47fa0c4047c61625c3685a8109cadf24. 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/USWD10527585.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1a7bcdeeb9cef8a73c3701eb8443c8e2ac75f6e37f90da454dae0549bec1426. 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/USWD10527584.
Mickey Mouse March - From "The Mickey Mouse Club"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4286124e399438ca0c03f0394ee19218022f8bac18142513b69183c845d36522. 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/USWD10321102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4286124e399438ca0c03f0394ee19218022f8bac18142513b69183c845d36522. 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/USWD10321102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x658e9838bcaa4f1c0c024a06aca9a811c5fde4157f637ce504cbf052c86e96a3. 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/USWD10527633.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8360a1606d6fc2c25e864d4c46166cb0107a7bba16f96b11f98782816bffb711. 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/USWD10527630.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad3900c326aa998dd2e7303a110f93e3ba63f7c19a097d489904a885c2b4d6b1. 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/USWD10527632.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1a7bcdeeb9cef8a73c3701eb8443c8e2ac75f6e37f90da454dae0549bec1426. 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/USWD10527584.
Musical Highlights from the Mickey Mouse Club TV Show
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca0125f2466677bb66920ddee305b692837eeeb55d61fb2a34baf9c24e80e0cb. 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/USWD10527549.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f3946663db0b7183ddad10038eb2333a10cbcb27d8d477184b781a4a55967b2. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USWD10527557.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2094d5281f0ee7bd7c9f2bc2b56c96c97e7d3cfafe18cdb51f7b9ff81fd522b. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/USWD10527559.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ef445dbfe27f0a1ee1d1e4bd9fc076555a7ca3a466d9306ff41b78ec0e8b8a5. 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/USWD10527560.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc9fed900f7ec90b76020f275431e9a4a38434365c70a85a94bbf4e5e900bcb4. Chain 2 (Bitcoin): anchored in block 960153 (2026-07-29T21:57:12Z), 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/USWD10527550.
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 0x6cfb360d4176c4e5a7714f217834f273b5a98404d5b1821fac2cd221fd5c264b. Chain 2 (Bitcoin): anchored in block 960183 (2026-07-30T01:10:20Z), 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/USWD10527552.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e38e1a1151491c37a1eebd6284fecbe71baac25b3f039aa8ce72c1f15fb18ad. Chain 2 (Bitcoin): anchored in block 960247 (2026-07-30T10:42:33Z), 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/USWD10527554.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8dcabf6d5b4c040c77a9a8db651fb5ad40dd45ccb0341c6de153690dd15a8dfc. Chain 2 (Bitcoin): anchored in block 960339 (2026-07-31T03:13:37Z), 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/USWD10527571.