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 0xf8c60a50c0c1825d3a4bcc4246bfb7977a22674859c1548f5e80c8c218b8088d. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0807b830-86e8-473e-91fb-1ff070e06b72.json and https://artists.proofprofile.net/proofs/artist/0807b830-86e8-473e-91fb-1ff070e06b72.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 0x0a88444314dc020cf767b75886a41216ae45c19e3cfd7e221eff8b08dc3bc0f5. 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/USVR10500119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1068efc24ebde215fe7b8a02fe866c98760be727e5d042d27fbdde6ba763242. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/USVR10400759.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78f858a0a4044a3038338743a042ff2c875804c5cf51b9d73c79c8d129e0f47d. Chain 2 (Bitcoin): anchored in block 958798 (2026-07-20T02:17:00Z), 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/USMC18415633.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf12337aa818006d3eabd4610f824b8da170cb8eddeef6073e7814cff54a7e965. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T02:09:46Z), 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/USMC18415635.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9725e38fd0a36e0af43a169db879a9325c16175f6ab3f128e9596c56e58c801. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/USMC18415636.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4160ac78b58c3847cd7e193ea76cdb0506ed3a3e5d0380d205523405c854758. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/USMC18416535.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7eecc9e8c724cf7d371f8a99874132b1b54215f820a5d9634c267ef997c6dd63. Chain 2 (Bitcoin): anchored in block 958541 (2026-07-18T11:37:54Z), 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/USMC18519037.
If We Can't Have Forever (Let's Take Tonight)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2898d049385a2b8641605ee33dcf04efb6c06a773429942cdad0bce6ad080f41. Chain 2 (Bitcoin): anchored in block 957644 (2026-07-12T03:18:52Z), 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/USMC18519041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd97b31aa9e315214b3b738ae5f68d57c6beebc6377ffe3d893ce14b0677754db. 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/USMC18415630.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d6291ab9157e7db2a1c8974216123e991b46de1f4a01878f803a8ba3d5dbc31. Chain 2 (Bitcoin): anchored in block 958397 (2026-07-17T10:29:45Z), 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/USMC18415632.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4160ac78b58c3847cd7e193ea76cdb0506ed3a3e5d0380d205523405c854758. 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/USMC18416535.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63181422afda9d1dd6b87ab5908e16bd7b28c38d24db704a7f767d20e4984172. 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/USMC18616546.
What's A Memory Like You (Doing In A Love Like This)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x174008690db785a46a9e0da157760f869f5014bc13ba471ca6670b181c77cc75. Chain 2 (Bitcoin): anchored in block 957642 (2026-07-12T02:46:48Z), 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/USMC18519038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00343042f83f17ccfe5dafa2c9b88d461703c42260b2dbcd79bec48556e6dc54. 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/USMC18519033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d2ae18994984b1c014a0175fc70c0cd7295f5ccb56b34e486cdc328d744c7c3. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/USMC18620816.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde17c4f5f72f48bcbc8af5ac9bb5e4cbad98d14d7b2bf61dd0fb5199a3061179. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/USMC18620807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a270219945cec017ba5fb0a5f58e2c58de42dd0d27dc90e07c8bd6d47cd3bd3. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/USMC18622601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb61a6aabc9580868e14412683c82c58e6327d1f5fe72c8c6d6218670627b3d2b. Chain 2 (Bitcoin): anchored in block 958798 (2026-07-20T02:08:29Z), 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/USMC18622595.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34b880bccb1cb2bfabe94cd0925f4036fc55633f72440a53b8b67da86d2f6557. Chain 2 (Bitcoin): anchored in block 957741 (2026-07-12T18:30:59Z), 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/USL4Q1893917.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f7e1c633305471419016b83f49a44754574b1f3672744fed39b94db06825ae1. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/USHM91898768.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa038513e3a7a708210c5ff86bc17aa1a6f6157babe95da3f0e10a7e8ad3c217. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/USHM91898769.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3baa0ce9d7bd88365b8c7e39a4f6b396fd5792955325c969941c642152657586. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QZHB71900019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa59371a55255c0ee8f08fe036071d891224d0765385160488067fcafa8484dd9. 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/QZHB71900003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf36b8debee4f0afc8b87ed62ae67bfc539add4c36c44d0b21d6c36c787da6709. 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/QZHB71900005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b439a9531ba72b5deb7e2c735cce1fcedaa3133e78e507d02268fd8119b2c05. 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/QZHB71900009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x760a03dfce9b0d03fbb1e8aec7f3d5cfdc24003059d91c294412e3196d83799d. 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/QZHB71900010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c676d66315177cde8e6e8858ceee80b1efa825cb46d1433f4408393a94279e5. 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/QZHB71900013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cc6d85191113689c62f91065664ce3a41368150d3e9f3e07433cb082341cc65. 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/QM4TX2042291.
Stand on It (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95883690391041d872599290f7f32e761908581e499eba681ece2a9812fc7e7e. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/QZHB72000109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd9eee45f101702d67e4dafb7a1bc62bb07f7d104452342f7deec5c275b3afbe. 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/QZHB72000110.