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 0xe40ef916152407ad072d071e2a61b8e5fac70ed5213220f4d87493139deb1763. Chain 2 (Bitcoin): anchored in block 953697 (2026-06-14T21:49:28Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5d42112e-53fb-486b-b742-dc4065b7fe52.json and https://artists.proofprofile.net/proofs/artist/5d42112e-53fb-486b-b742-dc4065b7fe52.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 0xfc2d132a4967791c8ce46bd9610ac18afdbf41843d7b5042c47b46e7d8fc1492. 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/FR9W12219281.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfac8139c3bd3a0f9bccfda9ad5acd09ad74947a37e6c91f546f59e406d8608ef. 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/NL4AJ2000001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa330b10cd1f94f8562f0acec15e7998202770cba19a63f4bf8a36a9365d9b35. 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/NL4AJ2000002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9d331672979dccbaf93982f26d8f82aef95df90bda5655e05dedfb1dce0078e. 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/NL4AJ2000003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e7db51af11275c45c6b21ef6b4e9ec252895cf2fc6f66e5c66cc1d795ae958d. 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/NL4AJ2000004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd360146b37fcf8e8013e110a88bbbebc2dbcddec03f39d54c9bacbf3d118d6d0. 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/QZHN71949947.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x422b46ee743cab10dc04758357a3addabd9608435d022a7a2cb17979c96ebd99. 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/NL4AJ2000005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaefe49c26e41aa5c880d55d9b06c663f26c1b994ebca24ccfc59d40a0d027925. 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/QZFYY2007877.
Ik Ben Aan (feat. ADF Ricky, ADF Lucky & ADF Rocco)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd50b65706f7524e5d69c6b7fa4763e6ebded8a561d2889ef7f4aca1e882abc51. 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/NL4AJ2000006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x316f078caadaf072e2d7a11b24686ad8f56ac0bfd296e612ff9de68465eb46e5. 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/NL4AJ2000007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39714717fa7b929610cd3db8efa5f0b0ec2742ac63bc747baf2c6647f810e912. 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/QZFZ62011581.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea14b90d1b0d61b916b9bdb871e3bd78cd570198efb05d28e2053331bdcd78b0. 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/NL4AJ2000008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21a087be914a9cc531787f0e51f04ab72e1d163515e7654c7137da8cebd45925. 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/NL4AJ2000009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89fb439cfd4738f799520862d4452cba3f6d4b94d4d23a8356368d419ea2542f. 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/QZHN71988783.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x578cc37ccdf7d4e88de29f1279b1066471fc7a00d72fb597a6ec91d63bc66437. 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/NL4AJ2000010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x916b5237ba13b647e15bd64c9894615093ac513e70222c9934043b5116b5abb6. 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/QZHN62004988.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5f04866c28c8843216c27e803506e8b80ec5a253ea5dd387fcb2370ff3f5ecc. 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/NL4JA2000011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5dc5f774e326840d3bf3c67d8a206c36047fc9cca9ce1d3f47b196052a202c37. 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/NL4AJ2000012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7a942675ed03ad6c0e598c9960739709790732bd345c1fbf49097246695f7c0. 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/NL4AJ2000013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47817cfe37839babbfe76121ea5329a4c29bc5603945e7960b2794b495788186. 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/QZNWT2072294.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f849902ac37835a300e9a0888cb4ebff8a66019117f23f0ada1b45e79106308. 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/QZK6N2381831.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86ddf456662dac1cade00049b5c735ccaffa5aeada2a2fe44899b223a221232a. 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/NL5HJ2200436.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc51f04f75b7b7f853fbfa0bceb9c123217a99c4ec054c90c8e98ff309536c8c6. 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/QZNWS2266811.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe52dfbd54c14df9462bd1f74277716165e5ad158e1182f36f2c6f7c5f71e2d5d. 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/DEZC62266352.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9a6205d517de61db6443fae9bb811007d3c49e8958ee166d8ca2ab2eed3227a. 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/QZFYX2211245.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xade917cb205b4fb851a5bfcf71b78c2d772d0388e6b39a721283edc84db2d7e0. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/QZRP42115575.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x062ff3d56d3f4e8482b08963b02788e441001e12f56b3857bb6476caadb4bbed. 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/QZMEQ2166863.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4c660cc540c7c001c88dc645e8a89c94ad5691f868623dbf910efc7efc930af. 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/QZES52159262.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0ad3d74623f2a3ceda80b39c50b0b63f2a61733e3a95ff937c8a4d9b6326f6c. 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/QZK6K2198217.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3048e6e664764bc776e88fc5d9fde286242828e8776c468811443db4a90ab87f. 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/FR9W12425283.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa415c262e37b4eaede064942e90a467a63deb522e3f6ac2f195c167692051eeb. 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/FR9W12425277.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6ad08b222298f615f917ba22ab121b9aa15001ad41476f7687957601509db76. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/FR9W12425279.
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