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 0x3d19a7cca841fed4c618c0b3d3dd5685a0e210793490f396c6dcaaaa7e820b2f. 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/470afac2-6cd4-4d8f-9940-5080296c2a83.json and https://artists.proofprofile.net/proofs/artist/470afac2-6cd4-4d8f-9940-5080296c2a83.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Reprise / Welcome to Life (feat. Carrah Flahive)
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 0x56893f985b246e3d751c95ec001597434e85dc7022be0145d9a6af8f2561b81f. 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/CA6QG1000013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15e010568af085e239836a16a849f37645c1bc7405efa692cdea2a39a067a645. 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/CA6QG1000014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0c20b060453055a7c7bcc42e786e8aba5c687349ccb5e178e6c48a71c6eaf65. 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/CA6QG1000015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fc2c4aaebc1f73bfc7e7beef6a7d75f1b31df7e71e0095eac57345dea62d1a1. 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/CA6QG1000016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe113074773e750fca3aebae2a789705545f0eb67372913725b78326b15dcff7d. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/CA6QG1000017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x021314f302f0d0817f9e4ed482697e72b1cbc3d6d757428f05e475e4917ef5f1. 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/CA6QG1000018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x328f76efda7bbc4da1f44dffd8d89e2c11cc5a529a464542f7e83633f91243ef. 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/CA6QG1000019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffc5e79be472486e746db0a24f85c121967224e6c468bd7635ea8e15d6a11d3f. 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/CA6QG1000020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f5b8931dfbbe1d3d26e00d2067ad8cd8aa426f2059f6c2c81d15fa0f2265b69. 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/CA6QG1000021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42f54d3fc0743b8a9e578570df7bf15b5aec30bc06c988bd6fa8629236fc82bc. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/CA6QG1200001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11ab1c6baf91ce424ed73f24bebcf52f8a63ac913b733955f20f754d15618a7c. 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/CA6QG1200002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x017258646f58d23bb48a5e1f82a3f5b85a073e6131939135bf47e20dd91e5d6c. 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/CA6QG1200004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a88d854d68da3ab36e161b0f9d5616f5a4e34d1758ef6a8bc9cd81ec650d568. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/CA6QG1200005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42ad03b59e71b3c8cc616f34c6ee674ba0e321cd8ae2cf5f01a1d135498078f2. 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/CA6QG1200006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48f64e5694244b93a8365c9f530d3b441035a241919c8d3190e51054a2aabf0a. 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/CA6QG1200008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cbcd2aa208d900ed571079659188ccd416f541fa0dbed2f5589c3339c700ff9. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/CA6QG1200009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2bb2c85ec81812b3149dea9753934a17de5b02a04d2a0167485795355d16e88. 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/CA6QG1200011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4aca2d045e0cb7d72b1a902e4c389060544f374f77f63b0ba0c595ad7177a239. 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/TCAHP2319163.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a9e8bd10b3b57c22d210ebd83be464f79f1c0a428697367b247b8feb5f94ba3. 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/TCAGQ2204850.
Sally's Song (From "the Nightmare Before Christmas")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41bedb5721b2e8eda725c935b9dfca704e6cf141faca93e562c88a9298f1b287. 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/TCAFW2125200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x017258646f58d23bb48a5e1f82a3f5b85a073e6131939135bf47e20dd91e5d6c. 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/CA6QG1200004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x723879d607420fb4b0118db42bee0e7710a36d36b3e70fcae181ae27964b3d2e. 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/TCAIX2422926.