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 0xc46bd42d8b178082b934639bba25e283e4e9ab1c2f233bf02e23c3c1928bd12f. 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/eaf286e3-5384-4fb9-ae77-e76ef6b47b9d.json and https://artists.proofprofile.net/proofs/artist/eaf286e3-5384-4fb9-ae77-e76ef6b47b9d.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 0x84f0b2244de0e39ba691c393abd35b9643cd4beb68cf5f815dddbb8c5571d953. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T05:45:55Z), 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/QZGWW2112434.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12866de2b2d333e2dcb6749b744a32b678fee20b2126ddb31c1ed4dba53cb135. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QZGWW2111620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93f631ce6061992592db1ccfcbaf87dfd343205b357df27b0ac568960d8b6a1d. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QZGWW2112437.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a33a4b105a9a9cad3469580998fa3f1149171e57bcc8b28071ec8eccbbbad19. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/QZGWX2013953.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc220d5e315d58de931febb0938145ea7b7a5f6cdd0323e4a634e6db1d2bbae81. Chain 2 (Bitcoin): anchored in block 958111 (2026-07-15T09:57:23Z), 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/QZGWX2034889.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x835444ab24eca88cc519cf400c8a91746760def828971f7ef17200c55145131d. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T18:01:00Z), 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/QZGWX2051165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48ad65db9531bc72241e6cd37d14b7fc0472c8ab19aa82169e1f800464c8eceb. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/QZGWX2056780.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1eb4cc38699b34e6bbe3b60e6a43f568860de0d21d258220d9fca46d221438e. Chain 2 (Bitcoin): anchored in block 957898 (2026-07-13T19:28:48Z), 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/QZGWX2061606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdd16909ab9dd8fa37f040e9887979a16e153a30222b0aab2545ede76fa97a49. Chain 2 (Bitcoin): anchored in block 958742 (2026-07-19T14:09:34Z), 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/QZGWX2067874.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dc19b1ad04c78d5d862ccdeac6d85c3fe40190aef06eb582fec5065e21abd2b. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QZGWX2076189.
Total Eclipse of the Heart (Sax & Violin)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d875c38d2de2ce0c711090a8681a3418430b0b83c46d5fef2fb58446d5dbf67. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-17T00:50:07Z), 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/QZGWX2090862.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82d88b71376d94211506f14b23abeffc8c82ebfbc3179b3e03186ea4aa4b3ed4. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T18:01:14Z), 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/QZGWX2099147.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94058e90c45acbf9eb43f7b62231d57c7d3cfc3e98770796c0a33316251d3300. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:25:34Z), 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/QZGWX2120409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2022f080b187bdae84ddfc64ca5307abe34c22e09059be24e2359efc8761e5a5. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/QZGWX2131780.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ba5277a774a2523567eb18d25a460ed4d1a99610145b5d8fe076c2807a34f4a. Chain 2 (Bitcoin): anchored in block 959024 (2026-07-21T17:38:18Z), 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/QZGWX2163749.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3756b79bb57b9a923025f308d29ea7d7f326ffd04f295dac23e35c30462ae9e. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T13:54:55Z), 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/QZGWX2174284.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4e4038f66e1da9a8e5f8d4620c8a6a4b00a7566f856df447086e9797d065da8. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T21:47:40Z), 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/QZGWX2179104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2623d4c86ae036b42336468fdf65a10188a19ca9a8c10e37bcd7262cb20b8f72. Chain 2 (Bitcoin): anchored in block 958526 (2026-07-18T09:09:53Z), 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/QZPJ32146271.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2611d34feaa6d7c191caae86752f941d21cf4567aefe17f1181d567aea133a8. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T22:37:58Z), 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/QZPJ32146272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f716d0c64f17e65a1be5847c0761b0925f7cbb5b60eb1282967ac0ab3763e71. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/QZPJ32146517.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fa025498ae82f251849adcfdfa65827e40e86842d60f165f7a87ce62aa5481b. Chain 2 (Bitcoin): anchored in block 958526 (2026-07-18T09:09:53Z), 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/QZPJ32146776.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38c1c85b4c6e2b13b7058dbcbac6d4dd713d0dd884431f9545561d02e6318f06. 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/QZPJ32162994.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2c8c0c9419f0a10de0c6bbca7ab433102181b77e9081632e7abb5e4fc5eae56. Chain 2 (Bitcoin): anchored in block 958238 (2026-07-16T07:03:54Z), 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/QZPJ32171731.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21f3fd9efc89391de3adfa579db833743aa815bce6992748b4014c672fa514f7. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QZPJ32192764.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfaeb09a0714b913e81ec97d7b9bdb8877994f6812ef6130e1493ea2d3f04095. Chain 2 (Bitcoin): anchored in block 958395 (2026-07-17T10:10:33Z), 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/QZPJ32213422.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd47c423e0b41761c04610a3b1df3ee4146bc7470001d2cbde3daa1e75cd6f1c. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/QZPJ32214931.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae7bf9486577b6aa48bb0492ef03a87f770662ac8a508c33a2401bfd0ca118d6. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/QZPJ32228817.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa9e39761dc1a2e987453eeacb778cf47a1a348e7df529803467726fbeca7098. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/QZPJ32251949.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11b730584cbfcaf509d44b1b5c546186d32e5588634184624d3a9fb8dc26d7b5. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/QZPJ32256279.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe56eafc8f7a9e141f5735f3d82f899c2f438f47d8b2a402584c757a4018f8b34. Chain 2 (Bitcoin): anchored in block 958430 (2026-07-17T15:33:28Z), 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/QZPJ32262430.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38c3adaeb29142088bf4c3a0ae6161d2e9739e2a116424b96b4868d21f3e8d82. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/QZPJ32310025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a74e162977d07712ebe5ef58bc35a685b9b291a0fb079cc204b20cf54bfd9d0. 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/QZPJ32363288.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9cb315f27580217e68cbf008126100e2d2308313611a271267d52485b66adf6. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/QZPJ32363289.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75f40b432362464bf1da2643b3addb58d1ad523dfb40556d2f4291e6f078fc9d. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T10:57:43Z), 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/QZPJ32375656.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f81ef7abb6bc93d09ade836869091726a58a830e7263af36d5b75c0ac0cf047. Chain 2 (Bitcoin): anchored in block 959015 (2026-07-21T16:37:57Z), 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/QZPJ32379096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8623e4ae2be8d1981d9daf0c6570b226aeb341acecc31cafa751bf6bbe858c73. Chain 2 (Bitcoin): anchored in block 959037 (2026-07-21T16:59:47Z), 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/QZPJ32379075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbe137cfe25c8a7985b1e41056bb65fd1876c80aaeff4b6ee490822d01bbdb70. Chain 2 (Bitcoin): anchored in block 958913 (2026-07-20T19:43:05Z), 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/QZPJ32401744.
Si Antes Te Hubiera Conocido (Sax Version)
Si Antes Te Hubiera Conocido - Sax Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd08c0453ebfe0a043759432c83da31fa875bc06c3f14f1d54405868f3b935fb8. 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/QZPJ32426295.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75a90a05c0f6b3494db951e8ff02f621945a6ec6962bf88aa7be268b6a1cd09c. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/QZPJ32453217.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x548abf1fe2a706dff102f0be148e1b35c39d644cbb0e6443a07a1476a0ece7aa. Chain 2 (Bitcoin): anchored in block 957771 (2026-07-12T23:27:28Z), 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/QZPJ32453214.
Can't Help Falling In Love - Sax Version
Can't Help Falling In Love (Sax Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2545a9a1ad1d46607d67e37de3597d4187e209d0fa03f4fcd3a2fea7ee7da1e. 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/QZGWX2217524.