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 0x57bb8c7e7a9aa3802827d0bb88b06a66b21764ca979394b0390a7edf44660e35. 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/34956e58-16b2-4feb-96f8-1ae16f34f590.json and https://artists.proofprofile.net/proofs/artist/34956e58-16b2-4feb-96f8-1ae16f34f590.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 0x0c178dd3c0d8d2ca44dc63301bba96053505d1371d845045fd9a4c58039dc290. 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/DESE72200002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd65513dcacd8fa7c86093c7ecf4f1b947b9980c416b8d224075c51342652bcee. 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/DEG932102482.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x034a60d89cf751b936e1ac1ff5fe680ea3c4a0edc6bbac3c0675f10fbd741ee6. 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/DEEC33501300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd35723c1e4e8262f9c0a26b2bed02421b1ade9c85294830e43b2a6b7d69b3e72. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/DEEC33501301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98d8b1d81eb073ffc436d4cbfe8974524baf6ea54c9b044b4da711f85e05d8bf. 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/DEXO32235282.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bff04c00c6f0c4831cc4740f3b5c6b2771a25ebc288cade250b5be0b46c22e0. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/DEY472570353.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72f66a3b6b9ad919c53b6c25dc1aa3b2a759496b1936917672858edd7245e0ce. 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/DEY472570354.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc44051e29bc39e05e2f5010a54d78483aa4afe95ef531aab6a10d43e1ed913db. 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/DEY472570355.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8a515c0e7d67ca39abfa179fcd2aed33e27d311f5141fbdc7d970464e0d1f96. 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/DEY472570356.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe36577ca25bf61cda8e44787590f10520190d8542eda53bc4bd2c924a42e8119. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/DEY472571600.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa85c42508acf9bc79a7581903eb60961b873baa0c747baec4848deb862a50e93. 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/DEY472571601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa85c42508acf9bc79a7581903eb60961b873baa0c747baec4848deb862a50e93. 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/DEY472571601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe36577ca25bf61cda8e44787590f10520190d8542eda53bc4bd2c924a42e8119. 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/DEY472571600.
Everybody Love - Musumeci Reconstruction
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92c0a87d824bf0ef9a61add2bf6927ddbd89304d0eb46a87616f4c18b7713391. 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/DEY472571587.
Everybody Love (Musumeci Reconstruction)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92c0a87d824bf0ef9a61add2bf6927ddbd89304d0eb46a87616f4c18b7713391. 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/DEY472571587.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88c8d8062d3d7549ef2396f2a73907152c3e3bd7cd67d2ff91de4242f78c5a17. 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/DEY472479841.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab94b8dea7926bf82d5bdb7fe225defa01ce7749d33329f19f66bf9882ef7634. 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/QM6N22537277.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a419c3a6e91da9c2fcbb7f69d5e0ff259ded6c88f8eec52ec6a4dd454ede23f. 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/ITZW52500305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x658ad4ba272cf597412493fa3e5c8c92debd292bed8bd7d611e7c4295a9cf1e6. Chain 2 (Bitcoin): anchored in block 957026 (2026-07-07T11:02:43Z), 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/IL4612400144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c6b4654bd8942a78547f5cc24556bf456d01faa82d475ebba892df3dad9719b. 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/BEN582400635.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e810e7752bb0d61cc03cc77d05737250971aabbf806c4b020a867719810161a. 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/ITSDR2400472.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d3b13b635e2e2cb854bf1b9f4a2fd2e92d35dfdac51a3ed3763ae0701e4c21d. Chain 2 (Bitcoin): anchored in block 957020 (2026-07-07T09:18:01Z), 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/GXBNP2425195.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe027252585b2f11ae7f0696bc6836fe8c61176ddee03a2d057756692fa0f9910. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/DEY472470264.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf00470faf554bb7a6bf54830bdaf9d3d6997c8f04604962ab4a5240d56988d14. 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/GBHFW2300047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7987c4188072280734e66c332328d7693472d21ea86cfadaabd5612c00afc47. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/CHC652300174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x012e3ada67c09ff258dd4874140da3695e4d7573791fde1afeba4ce8a1faf507. 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/DEY472376845.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x939262a04bbf13ce1d4bd3b06a9f27386980dd27bbacdda56056ba386b4ae504. Chain 2 (Bitcoin): anchored in block 957048 (2026-07-07T14:18:56Z), 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/DEUE22316010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b2fc9979e3278049d87cf038e99d6fb94016e2616b9d41cf94e23139e6f79fd. 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/DEUE22316011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95801bbbe399a497ecf052bef70cefd777bf039a35d9f35bf1c56aa27e390aff. 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/DEEC31810428.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d4c0376754e4a95121fadb5295d903a9c1187586e0c5cd0e8884b4bccce81db. 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/DEXO32235411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ff9d3f4771e9a31585f287d91b87e549616edb26119ce268a5b3398d6bcb925. 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/GBEPM2101577.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab94b8dea7926bf82d5bdb7fe225defa01ce7749d33329f19f66bf9882ef7634. 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/QM6N22537277.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d19c3ffe9d6b6cb3b34b941383ce1e17ca6fc94266977bc74b81af6b40530f8. 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/QMSNZ1316400.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff19eb1fe8b185ac6d65ce8808cf860b26de444f413328ef20d5837cde4af847. 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/GBEPM2101615.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95801bbbe399a497ecf052bef70cefd777bf039a35d9f35bf1c56aa27e390aff. 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/DEEC31810428.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3068b87903799234dcedf3018b5acce66f8f7cca55e5d3e77645e66c818a8b5d. 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/DEEC31810142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf686e97bea6a2765cd98946cc0ed9a4b564641ccc698b3d0e6fcf940ff56b8fa. 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/USA2P2255567.