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 0x5561023f68b070e3331ad17e57695998c5c99812e2200f95b785e32e29e57a4f. 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/696544f4-3ff9-4227-b4b2-8d974ff7e10e.json and https://artists.proofprofile.net/proofs/artist/696544f4-3ff9-4227-b4b2-8d974ff7e10e.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 0xc1dde866ca75dda8f32a82cad238b106fb6712cb4b613fe0458c628a7cb5a94f. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T17:52:28Z), 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/USY251524302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0799f42e26aaf7849ca65d25b3530fd51553cc45a9c1cd8e4479bcfd93699383. Chain 2 (Bitcoin): anchored in block 958644 (2026-07-19T02:21:25Z), 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/USY251524303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa89e0887a4bf52d59cac85a73d166a23bff8e1961125056f51f390a00c29f713. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/USY251524304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddd933358bcd78ab0f3d19b8efe316ff4695ec143ccb810dd94981412e8cfe3d. Chain 2 (Bitcoin): anchored in block 957759 (2026-07-12T21:46:51Z), 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/USY251524305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdd89b44ddfa62724aaadfd6a3a9baa62d05a25c5f9ec794460dd822fc31e7f4. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T18:56:24Z), 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/USY251524306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03b6b4132b9dacdc3f49df1a1d97979ba5b05eb2af30e3a5ee7802f6711d7ab0. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T23:13:41Z), 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/USY251524307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e94290b155bc5a775cc95effefdf094b34ab693f20c28b03fcbea1ad613e813. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/USY251524308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d1afff50b6f4c953038144f74f278287bc28a5ab34104f7b92cb49bd0df5873. 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/USY251524309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc127c5a696c104ceb91b2154d0e03c5af46ff5f5275b343b87c28d0b77f6c828. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T05:09:02Z), 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/USY251524310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x596bf76ecec7712bbafde56c6e96beae543c8bd6ffa0d1273e165cbca81ce7d9. Chain 2 (Bitcoin): anchored in block 958800 (2026-07-20T03:08:42Z), 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/USY251524311.
Ti Ayat Ti Meysa Nga Ubing (The Love of a Child)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ac703418bdb8f5022f772a3c047b857896665d4dc487e8876972aa133e80dc0. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/USY251634770.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x480a3abb5b4c976b0c18bd39e99f4a3dad31358211a2fa0c553da581f3d39e9e. Chain 2 (Bitcoin): anchored in block 958508 (2026-07-18T06:27:01Z), 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/USY251634771.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87d9dc32e743eec95f4c8941e1b3b5a04aca7821e213af0663e191a9cc40ca2a. Chain 2 (Bitcoin): anchored in block 957763 (2026-07-12T22:01:25Z), 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/USY251634772.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3dd78612876c77bd13d79e9e0bf3553fc51578363ac7c3500f0128ab64c85a04. Chain 2 (Bitcoin): anchored in block 958959 (2026-07-21T03:51:22Z), 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/USY251634774.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7bb283d521ea5df641af029f8ad3176dce3a236e68d02402f78d6c35ef010c5. Chain 2 (Bitcoin): anchored in block 958612 (2026-07-18T21:29:37Z), 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/USY251634775.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37cbc1c2c3b1c2e2e2668c976fa25b4c26b8562312975f4e9839290577238d02. Chain 2 (Bitcoin): anchored in block 958417 (2026-07-17T12:56:50Z), 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/USY251634776.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fffbeaece0ed37cd9c2b1705123dff9f46867329995b615060d8e46b79cbed7. Chain 2 (Bitcoin): anchored in block 958087 (2026-07-15T02:56:49Z), 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/USY251634777.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3134506659306a331703673c432d27f294ecc709566c69628ee3d359e114334. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T21:53:27Z), 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/USY251634778.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2fcd1b1fb83045309de6e5d69a79eef9d89f21562133bd703dde15c05fdd153. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T05:11:19Z), 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/USY251634779.