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 0xd13afdee70efb93c9c2cb0e30dd4bf6b8e7518f0f5c8127c5bca51a965d83029. 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/50d3ce90-c161-4801-b8e8-027432af2f43.json and https://artists.proofprofile.net/proofs/artist/50d3ce90-c161-4801-b8e8-027432af2f43.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 0x89cad5f2bc62f85fb3f3848f90429bdcbc527e1c7a38dc3a77d434a296fa7382. Chain 2 (Bitcoin): anchored in block 958600 (2026-07-18T19:24:05Z), 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/QZHN91918045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96fddaabab61defa16f505d52dd8356f4d46dfa1c87d4135b89ebd07a363d7cf. 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/QZHNA1957218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc318254b646241681a911e1e91d5b4585c3731e762c0f569c2a996469505fe71. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-16T22:37:47Z), 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/QZHNA1957221.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f32cdf0aff0e0c2b0f27545feb3984bbda1eb17aade5a38a26546a0f171db3c. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/QZDA42020431.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d6ad29de09f2d269fa2c4a80698ef2aa200b4413da4b9584def48a81c341bb6. 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/QZES52198364.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7efb6159e2b111035f33ba0bb5e201c91686b14dd5edacc8587e0fb3097d0465. 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/QZES52198365.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9785bb471f1eb279a59f1c115561ec9144e4dbc470d2d8cd4a1bdc0182b66354. Chain 2 (Bitcoin): anchored in block 958779 (2026-07-19T21:08:39Z), 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/QZK6Q2116337.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaadc375af252261c4877ec3b711fe025265811298222417b332455377f431104. 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/QZNWU2172869.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd67366c605cb60eb1e8895fb69b17b7aac81906a4e69616ecf6ab2f69ef16ac8. 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/QZNWU2172877.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd06363f93d82265b74175f4104a85726f8b9a288583b4195b44220a0695b3ee2. 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/QZNWU2172878.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x537cafe4fb27e8e463e6ff24ca4336d5dc2a6581fe191ce9e7f6ae0e557c84b3. 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/QZNWU2172880.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4dae0e8b694b3351881369a68944397611000c021b412f3445a5ad1fc8463156. 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/QZNWU2172881.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x248f6fe389ffeaa5988d035562901f713e397e227dd515ae244b2b1bac2692e4. Chain 2 (Bitcoin): anchored in block 958802 (2026-07-20T01:04:02Z), 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/QZFZ32229648.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9a92bdefb0e7099f40c88b5b832183b426d0b0fe41ed6264d4abdc09d3c513a. 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/QZFZ32225282.
Where To Find Me (Orchestrated Extended Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45c43c8443078585d227c6de2656a927e829be569224759449c2a82cf4d7d197. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/QZNWT2242886.
Cottagecore Dreams (Original and Naturecore Versions)
Cottagecore Dreams - Darker Version with Thunder, Rain and Birds
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d2f331a0a3c823bebb0dee93c427c65dce643c2806b384462d6395559c47f74. 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/QZHN72492642.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeddd67e6adcacd6e0b5d03bf834cf1af2178dc62df385d1ba2d06d145a246dd7. Chain 2 (Bitcoin): anchored in block 958392 (2026-07-17T09:46:31Z), 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/QZMEN2423674.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd486099d8e0f45d0c4a69752cd938336f20ed6e1b4765c4e7060ca03d1753f45. 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/QZMEN2423675.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39f56ab35c3a940bf017da15f3f0a38f3228d7642bdda2b6c65b21503cab9c6b. 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/QZMEN2423676.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97620071027054425f68fa85f94068183519a98a6608a22c65784a7ad2f33b1d. Chain 2 (Bitcoin): anchored in block 958185 (2026-07-15T18:19:04Z), 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/QZMEN2423677.
Pages of Summer (Gabriel Albuquerque Version)
Pages of Summer - Gabriel Albuquerque Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x327a3de18a4ddcf2c3b990c98548aa3267c5a4d532e7591ed0d3111e34938f83. 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/QZPLS2477424.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3796527241b4e6352c943f3fb6f550e085440f6d128226317d59093d9ef77756. 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/QZWFM2465344.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5560f0b78f9aa1b788029bcf601a76c09adc034a65f9429a86fa945f181b9f40. 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/QZWFM2465345.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x592e97c1b6970a27342f2609573843b0137700282485f9465edb6cd4463909e3. 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/QZWFM2465346.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x973ede6ec571284d63ceb7c5e206214f83d90253f087da16b098a4533123dc78. 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/QZWFM2465347.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1c38e4bff498219c27c5ff9d1c2cdb0060e8c42ad4cf155d97eb0ff408426b3. 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/QZWFM2465348.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5e30b4e3ebb9fcccbf6823c8f5f6653a18f8981e6e22741a82423801b61e4b3. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/QZWFM2465349.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c6b959327c0a8f72e736bc352a57d7b7868eac4d4af1e22e2ebce605382a573. 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/QZWFJ2348480.