Java Jive is a song written by Ben Oakland and Milton Drake in 1940 and most famously recorded that year by The Ink Spots, whose recording reached #17 on the U.S. Pop charts and is considered by many
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 0x7ae9f63337982bd8e26fc972ccd5e77083ef25312b89dcfaafe0a4baf3fe0b9c. 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/5cd5a0df-89e0-471d-9530-db73b369b087.json and https://artists.proofprofile.net/proofs/artist/5cd5a0df-89e0-471d-9530-db73b369b087.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 0xdb0df4e883db41cafef862ba94a38f50158d9536e5b6397f1528c59218252eed. 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/IDA181406404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8e90faa2c0460f19e010e7b85eefcda310263dba10101dc0ec9c9964d46c78b. 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/IDA181406416.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b9195536f851ff40db647023a48cfbfa6935344a33d72b73c6fdab98e1d62dd. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/IDA181207304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3039ee4e6aba4955142592b8d900cad7628e7cdedb45e8804737e69df79576b. Chain 2 (Bitcoin): anchored in block 958069 (2026-07-14T21:37:55Z), 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/IDA181207305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbdfcaa19365a193d4f1b5602dee028dcaf9ac21f90b7d6761b1d3106e4f7888. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/IDA181207310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c860d1a9959b7f2655e08bc6ab8c4d49a94ef7cde29a92fabc23f88133ab6ac. 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/IDA181207301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde5ef104d5bd06323007d9eb7098d2174d6781922333bd6855a636895b7b93b9. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/IDA181207302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b8691cf14f94f50cedd0b8c9d74f92420de13d895b0d40a5a1a119ba240f059. 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/IDA181238301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9217c807e101eba84baef6804f1353cdd60be916369a1c6048dd0d3af890b0f9. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/FR6V82000412.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55ebde742c3ad76f50ddfb8324927f2bb1ba2aff60c66ba16609a4c6a1ce91af. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T14:57:46Z), 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/FR6V82000420.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb4d5bf6145f50490a519252434e2613089f608d8ce5f77579c1eeb2a68c8e1b. 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/FRX281731605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c860d1a9959b7f2655e08bc6ab8c4d49a94ef7cde29a92fabc23f88133ab6ac. 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/IDA181207301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc8434119d61f116ca458c2434a8847d4cbbef7b4ed251ab1f0c2bd5dcf6bc8d. 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/IDA181238309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde5ef104d5bd06323007d9eb7098d2174d6781922333bd6855a636895b7b93b9. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/IDA181207302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ab8ac991184d3006e672514b9c426be2107d5e803a7bde408c67d321f01d73a. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/IDA181207303.