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 0xf9a44db4cb0d2cb2534ac587f484648b86837d58c1dcca8199addbda1c4cc3fb. 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/0f4eba41-1889-427f-a79d-2a85f746882d.json and https://artists.proofprofile.net/proofs/artist/0f4eba41-1889-427f-a79d-2a85f746882d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Songs Kids Really Love To Sing: 17 Christmas Songs
Songs Kids Really Love To Sing: 17 Bible Songs
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 0x329d1611891f3746439ed387e4320122dca1a456a2cf85f178d259bc622d122d. Chain 2 (Bitcoin): anchored in block 959355 (2026-07-24T03:24:16Z), 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/USSW10321986.
The Jesus Medley: Jesus Loves The Little Children/Jesus Loves Me/I Have Decided To Follow Jesus/When I Get To Heaven
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabe361782d0201be96795405f6598908f08106b511f80d9db4624908c31be17e. Chain 2 (Bitcoin): anchored in block 958054 (2026-07-14T19:33:24Z), 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/USSW10321974.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7e590dde551b5c7453d2a979e32639605441de542e3f1b82d57f876f020f962. 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/USSW10321992.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c3666359ea04c25d583877f52a84a4634274b4227ba97700c38f5657d6fa758. Chain 2 (Bitcoin): anchored in block 956396 (2026-07-02T21:01:51Z), 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/USSW10321978.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e250aba143a4befb70186e273dfff2f16a3919fa921230ed413d4701c98019c. Chain 2 (Bitcoin): anchored in block 959065 (2026-07-21T22:00:50Z), 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/USSW10321976.
Realmente Canciones Que Les Gusta Cantar A Los Niños: 17 Canciones Biblicas
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72967fd9bc9fd53c52b1736f12664877d5b3235ab7c1cfa4c55dff6c84ee93d4. 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/USSW10321957.
Songs Kids Really Love To Sing: 17 Playtime Songs
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d864535a6b8b7c5b28ca7ab249d33356caf4bc74d7befcce6fde26b470f8cc4. Chain 2 (Bitcoin): anchored in block 956396 (2026-07-02T21:01:51Z), 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/USSW10322034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59a65105471f6a90003f35722980a18211ef3eb3b4796f22577a4bda0465b534. 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/IL1001086988.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f42ebbe3b51e52f5a287f9bb65b504164e822d8477a743c0c6c5032888ba2d7. 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/IL1001086987.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71467ee50bba8c109c92dea2755b775c9697d6d86995769fea44d91226a6bc99. 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/IL1001086991.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd55a5f342f2c9268b3e974d0b4557db8f9b2b4437a6725e7f8ee4d30a989be2. 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/IL1001086989.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcaf992cc7dc47c4b6bd5d2972e13d734c1065ccc53c848ef1fe0ce4ffd0ae7c3. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/USSW10322044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80785968e51733adff07c34e3ddef2ca0d3ef0776ac2dff07b35d9988ba6867f. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/US25L1900441.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f42ebbe3b51e52f5a287f9bb65b504164e822d8477a743c0c6c5032888ba2d7. 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/IL1001086987.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59a65105471f6a90003f35722980a18211ef3eb3b4796f22577a4bda0465b534. 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/IL1001086988.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd55a5f342f2c9268b3e974d0b4557db8f9b2b4437a6725e7f8ee4d30a989be2. 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/IL1001086989.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1c32b866517d5e10641d2c94a373b68a18f138b272f682273777f08f9fdcdc9. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/IL1001086990.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71467ee50bba8c109c92dea2755b775c9697d6d86995769fea44d91226a6bc99. 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/IL1001086991.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8393d166a706add761bc4bf9e3c7fa932c3398ecf91df62abc647b2817285e1b. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/IL1001086992.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e2bfc40e20c236abfb69dce9db6ffefcdd8035e7acbd75aa9cd2bc9785a84d4. 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/IL1011120085.