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 0x20e66849a9cd544cdda28923abfd722890fca5e86ec5711ca95416caad6ad1c4. 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/d9754fad-d7f9-40d5-9621-0804ffd3b008.json and https://artists.proofprofile.net/proofs/artist/d9754fad-d7f9-40d5-9621-0804ffd3b008.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 0x6a2ecff707b73e7ebf0d48b993a998474a7ac5ccb0d426b5b0deec93b2a32e0c. 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/USUG12102228.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc779b56d0cdc83c5c948cdc464d6acb98be62e13e2272b62c7fb8989105c0dae. 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/HUUM72100408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8250d0b9f25458255427471db4ffcce70fbc87443a111321aebf9177dd3ce11f. 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/USUM72109687.
Still Falling For You - From "Bridget Jones's Baby"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5f8d16e0c4f5b4c335ad0bf49bad11035f35c08436cc354d5a18ad665de6268. Chain 2 (Bitcoin): anchored in block 957055 (2026-07-21T23:24:38Z), 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/GBUM71603863.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9e877269b31aef59c0e10478d6458d038c240ed8bfc65d2823b91f82fbe33fc. 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/GB2DY2000093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c36b3849b153d9138ed5b0c1c725240bdf0bbc1a6a796adb09038e737b44f04. 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/HUUM72200089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6b02d3d0a6912245088e4dd95fcf4be944b752a75f252a5b2fdfb83e0a39fa6. 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/HUUM72200050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfe4278b1c918b56d49257c0858a6c3e2d65e5bb65d2e57c2336834c75ee6bed. 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/HUUM72200102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a5ab37f033bf7163830318ace8ccd5914a62248dd24edfc7176e171176673d0. 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/HUUM72200103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x643e33836935a5a0f59db9760ad041f782347bcde103cbee78e9cd6507f81844. 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/HUUM72200104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x587296556d7eef3f178e771afabcc867e8a00ca5084d2e4a55a6ac91993466dc. 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/HUUM72200105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffa4ad4d903befba846365eabe19f068610ccfecbd1122b0d461aee4c724614d. 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/HUUM72200106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc957df35867eba53f37830018427ed01e08c598c4b1fd255deca582fdcb9043d. 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/HUUM72200107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7685ffe9043fd3885172673b91258ddfe9bed1efc5d7de5d1699f6e0330ee39c. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/HUUM72200108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f797fa628308543435b87dad8c9a366f88f537de02a8f79f40d8e28307f5d8c. 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/HUUM72200109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b120c634be0f544bb4303c7ce76b7ef5e1cb9157d546beea5909cfb165801a8. 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/HUUM72200110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc29af2245d6c5db6a1f397feea1d3875de44f634f09fe545ce87528e78ea8086. 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/HUUM72200113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48a54e8f4851a732d7a45996d3d28761784b46d1bb7115bcbd0b8e31fe4d777c. 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/HUUM72200111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe239962dd6d51c7c4209ead6477c2eb642a9b2d2dfa1cdc669531f6bfa1e4f69. 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/HUUM72200112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x444e76eb46d518ffc4bbc6ebf4cbf10dd272dca4f6f9da185e206a57cdb20deb. 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/USUM71609736.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x195fd752e69f8cb1db92c38f1935eb2ef3bc9550561c4ce36e1b064c4cc7fdae. 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/USUM71410466.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x102b09ba046f79916fa12ff7148e5c05e7ca2aec9ef3ff82586f941c1b1b49be. 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/USUM72023175.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x956b6087eea5ea2bf45680fe22393a3183619056c0ad8cc9539f541a2a0358b4. 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/USUM71911283.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89b572cf129ed96399983823eccc2a7181e2bc0b58be646bebcf6c75e16d42e7. 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/USUM71100061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08b0c33277e5ea27f96fd654b144a76ccf77ff1bafd0bca7061cb3f75d4170ee. 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/QZJ842000547.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3eeaf06345eb950bb199a0cc6f5b8e045f85b06e5ac1ece40dc0362d7bd9402. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/GBUM72006203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdbbd986e29ba98bf51445e45582c46160c83425993cbb39cca344eeea98fed8. 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/USUM72100996.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66549fd3282afc747baa0c9475814737b8d3e8b7c1ac9091a5a55d2f97c9260b. 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/HUUM72100601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0fd23373ffca3608bb8935471eae911c11e5e564ebe84701b790d0dcd307b45. 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/HUUM72000456.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5f54f55f2f93dbf5251896c80c57c4247fd6ba74ec31eabb6c556a25ad473a2. 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/HUUM72000207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43094a879c08ae9ecb47cdea9c2bc089e3379370e40012d286a32daa34c23481. 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/DGA072225558.