1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0xcb712d9e0a4bbe5544471c576954d9ac0243a7b8bd24367dbe4f8159a136f1c9. Chain 2 (Bitcoin): anchored in block 954533 (2026-06-20T08:57:02Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a71a0f2e-8ef4-45e3-8ea1-2d6caca9055e.json and https://artists.proofprofile.net/proofs/artist/a71a0f2e-8ef4-45e3-8ea1-2d6caca9055e.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 → block OTSBitcoinBlock must exist at that height 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 0x911bfe7d1b05610a41442d9939dc3528ed35f48ead46b30c8abb37f616ad5c81. 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/USSM11400676.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x315a7b72f02798868ccade18695ccd795a674147855bb73c201598daeab139eb. 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/USSM11400677.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7fca85cc73beccad52dec866c4d5e6afaa4777915da0304177e3ea8337f5fbb. 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/USSM10415560.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe52c72004b208420f2bf9cf8ef2b5169eb53e316e63a50c3f90da6aad52f0ad6. 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/USSM10001572.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94c96e9c5b13eb84367d2cda26b1cbb72b2c2aa11ca793e0cf622c2b3c0d5e8a. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/USSM10415563.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xace72854b422dde3c25a3ffaab142e926945fda24908e2837c60a81a3240eddf. 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/USSM10415564.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04235216ac11f79b473cf02e39da74df8b065b03b896925de31bd01c76f880b5. 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/USSM11504467.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04bec8b8c38dcc1f86915b9e23d5f1d260b02155ba14dcb94cb0aa3f8f0c95f0. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/USSM11504463.
The Jazz Masters - 27 Classic Performances From The Columbia Masterpieces Series
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9920d6c98a576759fcd8e938016e76e5a73d3d45028d1a457af1cefe0b05d6fc. 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/USSM10028717.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb953abcff7d354114213a0f3e255eb83ec20f7238d7c9bb9a1e63538c6a5b532. 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/USSM10028179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c6b48614d50c95b598a004933ba0c97790948c933b057c76abed4025bcdf0f7. 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/USSM18900872.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e6c35c4d559d8492b14404c811a5c6b12b35c82849ab412ca5f9fbd8adce935. 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/USSM16400050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2764cfb5ff784694cb0e72af2433e338bc183d22d2837a6f6c7f45774a850b1. 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/USSM10028181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47b42aa144f05b5e056081d4f32358229bee278f6fda009ac26deaebc698d09b. 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/USSM10028182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd62b42a806f8a2e6cedb2cc1a18bf1ba64ed5f6c1a7f64381d96c8c90b863d17. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/USSM10028491.