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 0x11848bd8eb01cd6689b3885ab6d29546aa4be29bffc5fee4e93113e4cc560f5e. 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/6628c41c-72c9-47b1-88b2-4d2f11e3a58e.json and https://artists.proofprofile.net/proofs/artist/6628c41c-72c9-47b1-88b2-4d2f11e3a58e.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 0x1b878f6af657f092d8734b9ddfe8b532c67f2545c9aa0023b6ca2b43f1699a49. 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/TCAHH2388535.
Marvelous Doings (Spontaneous Worship Version)
Burning Fire (Spontaneous Worship Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9c68e7f92eb2b5110344f439e8d1af91b611c733712e501004bd8d176b0511f. Chain 2 (Bitcoin): anchored in block 958547 (2026-07-18T12:44:05Z), 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/TCAIN2448990.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5c25e0fdacd4114c6422cbff5b995064ca79c6c4f6c70ebe1d6be0db0732fdc. Chain 2 (Bitcoin): anchored in block 958436 (2026-07-17T16:42:22Z), 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/TCAIM2456332.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4470f8d44ba69c9e8544b0e800a7ece8d25132be2f23a0b1eb51052f2f8ccd1d. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T07:01:40Z), 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/TCAIN2493502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74da2d3b68083cbc20fecae4cfa0b2fdc4372a6d36556d05c9c8f3b135c19ba9. Chain 2 (Bitcoin): anchored in block 958058 (2026-07-14T20:20:34Z), 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/TCAIN2489567.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf833eab2ee9333300904c2297059de2487245c567eb73d93add692ba1b66c7ce. 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/TCAIR2467804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bfb675c78157ab6a919b025caafa6a3fc75a46160708500ef7e4964f7293ce1. 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/TCAIY2481939.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e2d2e0e642938b5f0c99a88dc5914ab1f119976ee31f6e493d6e84bd1c2bf48. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/TCAJQ2589463.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4093be9df534b656ecdc09964d5dc2e781a14d5b1a781823ed06c5267af47c2. 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/TCAJT2547769.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5de85b9030f535ac3fa7f8b06b2eafef2f5992ddfc22674971a914662413f29d. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T22:25:25Z), 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/TCAJY2517656.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe796ff1c8b3853f3ac344b03f7cbad509870550e970acad8084e8bc55072ab1c. Chain 2 (Bitcoin): anchored in block 958263 (2026-07-16T11:02:17Z), 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/TCAJZ2592417.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3a4b70e72aefbff5f23b80c0337e927575c6017f1b8918310c6774ca608d72b. 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/QT65X2537372.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5847550f009f41ff666a83fcef1f0769d1592851d6d8dfc6aa5861b8397d533. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-15T23:54:37Z), 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/QT65Y2506029.