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 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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf692b1c8827821d15a37165c8a0e7b0488668eed25b2d8b4cc51510c963021b0. 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/433c9cc6-e628-42a1-b51f-fe5a86cdc9b4.json and https://artists.proofprofile.net/proofs/artist/433c9cc6-e628-42a1-b51f-fe5a86cdc9b4.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 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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed78d9b728ff2edde031ac68e693760f3d949b95f3d4766f4da53952482a508d. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T12:00:27Z), 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/USHM82225342.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc5ba4c58da3e15ebaa41db5347dba5fdd91c7839e362cfb9bf9c68f42ac0127. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/UKW3Z2203271.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91b37aa0e157c6f21e4cec3cd2e1f2944e0e2861a079fbdfd6d66517a26597f1. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/UKW3Z2300073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7dd5314fd68bae08565971ebd1e78c6ed5f6078d79c3f650df5938465d17ac60. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/UKW3Z2300333.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e208cae5d8b174e6f8ab1f107b0008a91717c1d6692c4b4e03e5e895f4aedaf. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-16T21:55:37Z), 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/UKW3Z2300337.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc5ba4c58da3e15ebaa41db5347dba5fdd91c7839e362cfb9bf9c68f42ac0127. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/UKW3Z2203271.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x266f8724bd5cade0815c68526d52879138b351fce403705129dea352fca536d4. Chain 2 (Bitcoin): anchored in block 958474 (2026-07-18T00:59:09Z), 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/UKW3Z2300340.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9d0bd3bb8cb86cade92baeeb07d00d561f75dbe584c8b32c331377429594ea8. 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/UKW3Z2300341.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf81d9a39b77e1463ba4886c0f01d022537b1615b91410c70dae1a0a50c35d885. 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/UKW3Z2300342.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x607a4761ad3251725fda1635e37326b5ca4c09c52c73c61b01fbd6a21c9f3c8d. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/UKW3Z2300344.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4addecd0a0e8cae0d0d9a1551254b7789e91eb6de04f412df6d18639db99d2a7. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/UKW3Z2300571.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbde832caf2777331d7c4708e520e3ed46213689dac93e1480787c7455a22d76f. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/UKW3Z2300837.
The Healer's In The Room (Studio Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x212a0f9073d548260041275b94d4984e6b8b9371d9eb37f12623e2fb1708cb76. 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/UKW3Z2402536.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d3f695b162ddf994c271c4aa597b505f5333e1e2fa00657fed97f5ba42df2b2. 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/UKW3Z2402760.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x935e59f4c1675f148101530ba4b49609399a3fd07fdf582693b66e94d1080443. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/UKW3Z2402761.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf085741cc2c013301425d03e0dbc777643371f08d1f4131b45710e83c196bfb9. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/UKW3Z2402762.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0ad44b6be6e5970068cac2c06f4cc98ac5f888f1e8134a94abb776a79d2d313. Chain 2 (Bitcoin): anchored in block 959051 (2026-07-21T19:48:03Z), 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/UKW3Z2402763.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f0c88e06e4e20de34dd9b02d362315b4ceb373da038e3a80c5e5c340aa9f1ef. Chain 2 (Bitcoin): anchored in block 958594 (2026-07-18T18:05:01Z), 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/UKW3Z2402764.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2771b358f44e982d832fab7e11fb8c72b7ef9926801e086c36122014b0ce4e8a. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/UKW3Z2403075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67fe8729529fe306fe22620bb252b5eda17ccb18f46fb8a57f599ec838d961ed. Chain 2 (Bitcoin): anchored in block 957546 (2026-07-11T09:35:53Z), 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/UKW3Z2403241.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x315dcdb89ab55088c6771cf6249e29236697b5666ea89652a4904253bb774d47. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T12:00:27Z), 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/UKW3Z2500126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1593e78c65ba3b470cd76011297727351ace1179d2311413b89749e90d8ced9. 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/UKW3Z2500123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3da69a911f181b5237612519168560b3cd6c31add443b3b02c35466afea69f04. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/UKW3Z2500127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83a80e7044d593cf0482e8e957c91ee1e2e424e6a78a5f6e3c099058ad029324. Chain 2 (Bitcoin): anchored in block 957776 (2026-07-13T00:05:10Z), 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/UKW3Z2501777.
Oceans (Where Feet May Fail) [Live at Camp]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71a8651adf69693dd3aa07f878ab594edaa1058b40c9087743af52ae79f355b5. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/UKW3Z2503165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf139a622cad73edafb1c87f0d2ecdae6a85fc8c2089e0cdece15769982ae6caf. 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/UKW3Z2503166.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9655b4808f1cd9044034f87a0b28005f65f75535e5c50e6b7594e7ac2ccbd3d. Chain 2 (Bitcoin): anchored in block 958397 (2026-07-17T10:29:45Z), 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/UKW3Z2503167.
Oceans (Where Feet May Fail) - Live at Camp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3376ee28135f576d562caf55e0e099efafa9eeb54224d0ef1f4c8c1786dba856. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/UKW3Z2502503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08b3200dad5997be15dcde95345fb04f720e0e62ed97f5942f2bd2b06b81739f. Chain 2 (Bitcoin): anchored in block 958473 (2026-07-18T00:52:36Z), 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/UKW3Z2503168.