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 0xc007716d7a43f578df0296cd432536e2726effe54f3b30933483c6fb49a9f6a9. 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/e5c70e8c-6a68-4f7c-a9c5-3dd40e36a348.json and https://artists.proofprofile.net/proofs/artist/e5c70e8c-6a68-4f7c-a9c5-3dd40e36a348.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 0xc47705f7a3a4a6d8a2d214d9d1bddf2e111160d8240ec44794e116138c3727a2. 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/SE52N2226501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78c0ecb98284008fa27a5dfb329b854b5844fbe4da4c3a4b7c42f56b1a33045d. 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/SE52N2226513.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf09769006a2648a21dc04a007feed43363da768699b1fc8a6562e28089fb7885. 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/SE52N2226520.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6bf808b75d55d2669247510152545150ebfaa5cd9f0089f3f20101eaf12e7a5. 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/SE52N2226504.
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 0xa8fb8ea21ef3a971053f4f8cdc733e80b9bf2661df7c2c823fd08656adc427f8. Chain 2 (Bitcoin): anchored in block 956482 (2026-07-03T10:33:57Z), 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/SE52N2339101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccf101dc03244ba853b6a05eb1e0004135da3107258195113f64e67d32e96844. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/SE52N2339102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59fc5386d2a78dfd29430f626ac3cafa52f30f39c33b73801582b953f2362102. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/SE52N2339103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcefea6e1c9bc39daa2eb30a587c5c21103de5096cbf1f1150f8d4aab3a289b38. 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/SE52N2339104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46b411800dd38ef7ed0b8afbe876c8bb92789ca7cc9907d0732d2b6162d3028b. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T05:02:46Z), 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/SE52N2339105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc40793079f998559028eef1f2494b2f66ca746b33a19c114a98e35ab74b6bcb7. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/SE52N2339106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ed0fa74ce4211d94fe8f0e10f444b374114b35c4c950c518bc977d72638b1b6. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/SE52N2339107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29e2bd4c4dc5161ab4ec3bf9ccc45bd2a0c7f1956e8bca8b9fcb1300029f1923. Chain 2 (Bitcoin): anchored in block 958122 (2026-07-15T10:55:19Z), 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/SE52N2339108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x826a40dc402b856eb539201a0cabdf997a2160151459aec9da213dadd7bc5709. 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/QZZ8A2365797.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4188f532b17b1f10868f2c1fe0f32c351415fa0c981e0748094006a925e4df25. 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/QZZ8A2365802.
White Noise 12 Hours Pt. 03 - Baby Sleep
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3bc26f7ca74f125b3627f990d19eb3b95659c1561f50170089b59369f21b00f. 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/QZZ8A2365805.
White Noise 12 Hours Pt. 04 - Sleeping Babies
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bbcec4dfb1294384c7634ff2e3fbde01ffd7fd161b15674af34f17e15fde361. 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/QZZ8A2365806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ff11947369755102d4a611feda02c01175bee976949d8998aec68f815b514c6. 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/QZZ8A2365808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeeb8eaa147e9775d06cebd53fe3e7cf8a7325486ee5a4a08235069ac08642107. 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/QZZ8A2365809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b0183f0d3d774f8689fc6e53de1509c0df2ecc0adcfb178f9b8091eb43b244e. 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/QZZ8A2365813.
White Noise 12 Hours Pt. 08 - Baby Sleep Aid
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x699fe25c5b6665ee7bca1aba7a60dfec42df50b759180a96a8c5b99a77d4e093. 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/QZZ8A2365815.
White Noise 12 Hours Pt. 09 - Sleeping Aid
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe675edfc2682526e22a5020a3bf989de13dc3c23a60adaaf1bb1323de16ca2f7. 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/QZZ8A2365816.
White Noise 12 Hours Pt. 10 - Sleep Aid for Babies
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9532687a3e5667d3784efd3c6df338e38fcdc8fbc0610ec0f5a5048652c6daab. 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/QZZ8A2365817.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf12a6960ff3517a039f1871943039007f4c6745823914ea7e9e8e62cf9001bd0. 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/QZZ8A2365818.
White Noise 12 Hours Pt. 12 - Loopable No Fade
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ab7974ff21ed14082964476e983b95b5886ac3ef29dc49a2c873581bb1be00c. 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/QZZ8A2365821.
White Noise 12 Hours Pt. 13 - Loopable with No Fade
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cefb8e1ada24afe07e6c263d8c3b4bc30b16ea93efd2bd577d21db16d6650a6. 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/QZZ8A2365823.
White Noise 12 Hours Pt. 14 - Calming Sleep
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94ff0b138eb9a0c3afef5bbfefb2985aca605267cafd1c1104bf8e4798db6eeb. 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/QZZ8A2365824.
White Noise 12 Hours Pt. 15 - Relaxing Sleep
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa88bd014635946196bea7597be579033ab9b5ec5c55f7198d2d0e87dfdbff0e2. 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/QZZ8A2365826.
White Noise 12 Hours Pt. 16 - Heavenly Sleep
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8e44243f297ed069dba748ccb1fc2f1245d8f1bdd693e41ff3bd7470d7f22e7. 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/QZZ8A2365830.
White Noise 12 Hours Pt. 17 - Sleep Sound
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c4aa6324b46594fec254ad2cd5e004b2d89cb814566770bce0f5ccabd3f204b. 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/QZZ8A2365832.
White Noise 12 Hours Pt. 18 - Sleeping Sound
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33c2a172b36fbb1429de8148cc42d845660f93470cb501f7b4d4f8b5e9991056. 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/QZZ8A2365835.
White Noise 12 Hours Pt. 19 - Baby Sleep Sound
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c1de6b2dedb31e1516aaf8faa11217a80a7919f1313c2f2674093199bad3122. 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/QZZ8A2365836.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2f7e8e05127030b913f99297d555cbcdf925e257813488a3ebeecfcf716d03b. 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/QZZ8A2365841.