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 0xddc29ed2cba005924bbfdb2a3b9dbadc3322591879aa5bcfcdc8413eae8de033. 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/7ab7cb74-3374-4060-9940-f246f4d99996.json and https://artists.proofprofile.net/proofs/artist/7ab7cb74-3374-4060-9940-f246f4d99996.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 0x1350bad659f404dfe662c46baa3da2461b47e7fef5abb84493bf346902845413. 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/GXD7V2322154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ce8b3d3d27feb1a12335d3d6beb2a1c08119a984552d4e8073434eac4d169b2. 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/MXUM62300630.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb18087c513234d200e0666caf5d480fde902f1ebf8f0b00f74eef127fe7e22a3. 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/MXUM62300451.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa2aea1a8ef503314d8cd250f2fb6e94cce3eb68e857c613aa91608df6198af2. 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/QZES82149525.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4a20a14b5d3cd2ddffb81b4d6ef68270b9e0fb7b46af2139c0df1677ef10413. 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/QZES82149526.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96165002ed41ba77ae0ea0ab497bd28ebafe4eb57c075863adeb3ddb51c7a007. 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/QZES82149527.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6af03239964033e1206d8af0f6cc7c03c306501a860fa7aaabad417bd6028b3b. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/QZES82149530.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ad230243b3d0df849a9d944ee602c7be17094aab3ce9303643f3c3ef03b14a5. 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/QZES82149531.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f4b2b20c7206c629ca0f460bc3e9f9fae43835744182a80e331d08df1be6c43. 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/QZES82149535.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5adb9983133c2ac75852b5c27b75df36429bc94225ffbf62563e80c7a64dd2c0. 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/SGB502599962.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca943b16bab948a0f223967ec323a7234cd96603ae1c4206a9d2b8caaaf3e650. 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/GX53U2347832.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x054f64eb30d5726a78297b0272bdde919a436cfcbffa9e464728d81a22adf048. 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/DGA0H2457710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d0d49d41bdfe7667eef53eb6a6cceee84c5ec09840594957f04041e656b519d. 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/GXD7V2394180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1d1993ada09aabf7d1b6e6159619c8bc4fc6b7b250f0259b45e743231d900f7. 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/GXD7G2431901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70a127f8229aedc27ffb6191b7861f1d671fa7652b15e6a6f1813da19557e4cf. 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/MXUM62400072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7143c99a58371447b59563ea831fbaeb23a0171e2b931f13817c3b9663fbd233. 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/TCAHN2316031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b9fc1fff366f46ae94fdd8213391c6cde3fa8a68400653e8b3695b509680877. 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/TCAHI2334919.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd08504dde9a96b8cb97cf215b0a960b82b114256bc1206f7af13eeec0df8cf4e. 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/QZES92342655.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x836c7a6e5b1881553649155433b68c35b5063488b40b882dacc242759310422b. 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/QZPLS2263213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5da2e01998f5e12f20ecd8e40e9c03ba41e6ee1a89878d125b204eecfaf610d. 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/QZHN92258617.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e3b26b0a50182c044ff98f0aa4b7281403a70a4ba63b2415bdd5da33cd43348. 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/QZFZ42208882.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6d4ab235b8e5d6cb882439ba795fae4d78f17ebb740b08f3a8841ae7c3e47e1. 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/QZK6K2198613.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x602188222e0bfc075a227960ca248781edc6ab28651e6280431055871ee79c21. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/QZES62143781.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x958fed779aabda4d5ec2a65262ca6ce99877406e60415b8b4032a3d3f00ddc4c. 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/QZDA52082386.
Despidiendo la Primavera Con Música Latina
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x800fad3673a2fdfec287a316e821e2d63a4af1bdb2085a11af9b61fc85ef560e. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/QZNJY2107502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3ebcbb56bc56feea421896eb7bafb2811298145a7c6d96cb016f6d28ca49b84. 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/QM6N22460682.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c749f63288b011db93cd34c5c84b2b10a3721e4b00bb09f4ae6d7f6ad72f815. 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/SGW502316276.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0997f91efa474e0b11f5937f8c616bdf0f79e5ce9557f946f99f2aad33a0f01a. 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/QZW9N2241601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7c70466335e7e40b5e8900338a99cc786ce2e73fb6e02aaf8a89015b1aed9e9. 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/SGW502316278.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6566c467797ca879407dfeeb3e4bed63f70d0811a37686b52d474aee618ebf7c. 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/SGW502316279.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49b448a1725998e45ebff0aaf77f2b990fc3e072a43b160689cc454ec7517034. 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/MXUM62300520.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49b448a1725998e45ebff0aaf77f2b990fc3e072a43b160689cc454ec7517034. 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/MXUM62300520.