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 0xa782b89be364a4d152ecccf7a249095a70897d46b770f5f5f7e41a839e1e44d6. 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/b58e455f-813a-4c7b-85d9-d69be1973154.json and https://artists.proofprofile.net/proofs/artist/b58e455f-813a-4c7b-85d9-d69be1973154.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 0xe3facc1cfcd571fb558453ffb56d7d78b050a0f3069b0bdb029f59d6f3fd69c4. Chain 2 (Bitcoin): anchored in block 958322 (2026-07-16T23:17:37Z), 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/QZ22B1814279.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45ce150acc7b6e23ff73b9e3fc7f7e4699a65785c51a9fff82b08c8eb581025a. 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/QZ22B1814280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa305bd44d68392edfd57b7c7fd8e19703d53ca6d7f58fce73c0b7f510a5db864. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/QZ22B2051750.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde01b88b0cf10fca1572167e9e142de555c1d239cde975f36d3a1717d8e48b36. 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/QZ22B2051754.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x612aafa9b82fa47a4d3622b7f7973e1ad00910ce91ed44b08974abfd0b306987. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T20:12:32Z), 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/QZ22B2051755.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26267cedbcb509cef9952bfb3572c5e196b9c260f1d6502de9d82363d99862db. 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/QZ22B2051756.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0d701c7874a8671c8bab6bb813db02f43ad86981db27a72361c67120e0310c4. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T20:38:50Z), 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/QZ22B2051757.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe294994bc73c283a4ed510207514eb272ebc7b41113914638006dac8e1db9b00. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-15T23:41:24Z), 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/QZ22B2051758.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa612d96fc2571c7708a430fbd372e6a2f83b33751163c8972c48bfa2f1e5b964. 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/QZ22B2051759.
Something Just Like This (Saxophone Instrumental)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab08216d882c95108b34b85fc28d7490a815412dd2b604547ca51fd7edc95433. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/QZ22B2051760.
We Dont Talk Anymore (Saxophone Instrumental)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb39c994aee157f7cab904282ecef0747ebc0f43d2a8cfce6e29661f9bcc6d647. 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/QZ22B2051763.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa21300eb5d305ae39aad591b20ef75750948928d1968ab1b66638361b8bca695. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/QZ22B2051764.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd86edf4dba69ff83e88a9221d79b2560df6573bd763f13c01f6143487dd28553. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/QZGWW2101828.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21530c5fc28fdb4edd7afc04f6715a4b129f5dc1fc345f1048c7ca8ac7ac0539. Chain 2 (Bitcoin): anchored in block 958673 (2026-07-19T05:38:28Z), 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/QZGWW2101831.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a67a536ca481ef882882d45c8d1d6e41682d3f4a9c86887e132c5dadd05dba1. 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/QZGWW2101835.
A Thousand Years (Saxophone Instrumental)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x683a44a5a9eb3a13e11a798fb603fd010c3c7a1b291a2adffb5781c7344c09b9. 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/QZGWW2101837.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7961a5581ddc64d8b4b26a73c5a8312f9e14b57289d990046196dffd85bd229c. Chain 2 (Bitcoin): anchored in block 959001 (2026-07-21T13:52:44Z), 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/QZGWW2101840.
Scared To Be Lonely (Saxophone Instrumental)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6f841744700d6e4a8cdf30b451b6d760b7a2aa979970b5a6ce2a6e8f47e29c6. Chain 2 (Bitcoin): anchored in block 959008 (2026-07-21T15:10:32Z), 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/QZGWW2101841.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2926aa2f4f4823a6578c458b03e269c0a3bc9101238db31236fe51e811b3220. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T05:23:15Z), 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/QZPJ32124740.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7552a05ac5bdf3903fcbf9ce4df7b6c95935874a74e82d0057292132133457c. Chain 2 (Bitcoin): anchored in block 958263 (2026-07-16T08:19:47Z), 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/QZPJ32124741.
Leave The Door Open (Saxophone Instrumental)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x080ede151461726fe558a98298efbdaff0b91b65506da729eae4b7dcb6e135a6. Chain 2 (Bitcoin): anchored in block 959052 (2026-07-21T22:45:13Z), 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/QZPJ32124748.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x640b88810ff51f73f902707393c92e0d4ce5f225711681010d4ce01fd2aaeecc. Chain 2 (Bitcoin): anchored in block 958633 (2026-07-19T00:54:50Z), 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/QZPJ32229048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0b8390f8e217f40d8a92acf775119ba715cce1094e8697b29e078dd0f0cb1be. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/QZPJ32229053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff9269377a8943976672686159bec0e161187c70d01d18c6f1ad6ea4fa283451. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/QZPJ32229056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29d9e5268f8ca8e0a57701cb404cfcbc6f24dc3b39dbd58e68ed3d87836ac27e. 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/QZPJ32317099.
Ella Baila Sola (Saxophone Instrumental)
Thinking Out Loud (Sax Instrumental Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec40cf088f70af864a18f4d23cce6254ab87a7610bf97d29ee73dcdca4a5ec41. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/USE831529075.
Santa Claus Llego a la Ciudad (Saxofon Navidad)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa7f097bc82e68c504708cd8973161940188f7bedc55eff5843374645b5806a6. Chain 2 (Bitcoin): anchored in block 958917 (2026-07-20T19:55:19Z), 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/QZPJ32405533.
Lose Control (Instrumental Saxophone Cover)
Die With A Smile (Instrumental Saxophone Cover)
Bachata Saxophone Collection Vol. 1 (Sensual Bachata Sax)
Bachata Saxophone Collection Vol. 2 (Sensual Bachata Instrumental)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65829268fd52496ea3b44ec88772218fb72f9c6b1971cab7bcf1a5b4908e7cf7. 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/QZPJ32502543.