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 0x13f40f408f63883243c35a38fe2cdedd8776c12415579c7a5e0634cda3df7942. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1f8b167b-5f7b-4c8d-91f8-765b5170dd6a.json and https://artists.proofprofile.net/proofs/artist/1f8b167b-5f7b-4c8d-91f8-765b5170dd6a.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 0xf0f5536d155b79c3597ad56a7a4170f8b8a9c0545f7698271d7ddd75efb35059. Chain 2 (Bitcoin): anchored in block 958631 (2026-07-19T00:50:09Z), 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/FRX761592261.
Indestructible (feat. MAX) [The Remixes]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9f1c6646a3b26efbf7ff39b437c87d1cb4b82d34872a9373ec204a5a07dcee7. 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/USDM31898701.
Indestructible (feat. MAX) - B-Sides Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b582f2dd0756d506a4a8b15f022e3d53033922db83a26a1aa7aa77a0c59a51d. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/USDM31898705.
Indestructible (feat. MAX) - KENSEN & KIRUE Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7c1751efb3708365956d342a08b6c59b029f691699b4440bf9bdf1a864dfba1. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/USDM31898709.
Lost In The City / Holding On (feat. Leo The Kind)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf31c5d9bc10c6fbf9f3e7d7229010a452f159f16c9d77e22fd056890402654d4. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/USDM31908801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3b7cf21b83a8a6bc304558a061bfdae0c13b9a215d29b8c090cf158df8809d3. 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/USDM31908802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fac01f2e382cbf6e9ebb07fc35ba7ce6377e40dec982bf39ce0a6018c3dd44d. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T20:10:02Z), 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/TCAER2099208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f6a2f0e517986686a2130ce4fc6e15077abb9d19f48967c6a702e3edf216b9d. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/GB5KW1801432.
Hard Times (with Robinson) - Not Your Dope Remix
Hard Times (with Robinson) [Not Your Dope Remix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a0c5f088d3c99a26c68163a66a15fa755c6d95717e79f1dad99938296ff6b81. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/GBUM71904356.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9fa545c621b640aabe67a10bfefc897a0bbc28fb38e4d0fd80d8f0850871f7c. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/QMEZE1915295.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe207ac1d98b1d96ded89493f405644ef7fec2b6a270eb38e73fc1f1f30918a20. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/US5261822964.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe207ac1d98b1d96ded89493f405644ef7fec2b6a270eb38e73fc1f1f30918a20. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/US5261822964.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e5e614973d215884dacbdc6efd1ff7288a15d50c0c60433d6e7f208f573b162. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/NZNK11800007.
Don't Know You (feat. Jake Miller) - Not Your Dope Remix
Don't Know You (feat. Jake Miller) [Remixes]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd53ac02442b24ce3ac942ade28e896dcd77ec28571e313a915f67c6031f9964f. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/USAT21812971.
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