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 0x677ec5d57f569d0bfc3a51869d1fe7f1c58da2a72bf33bb866cde488ce0db11d. 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/467d50c1-0dc5-4f62-9dd5-8244543e5ba6.json and https://artists.proofprofile.net/proofs/artist/467d50c1-0dc5-4f62-9dd5-8244543e5ba6.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 0xfca19eefd9395c715d60a663c143df58ad7f84eafa8b622a2cca427ffccaf2c3. 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/USA2P0614286.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59bf83853b75d8a4e751d3b4de44ba95a18b3aac41a466d4f999aef978a384a7. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T22:24:54Z), 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/NLD910900006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe70b56c3edafac943b4c1aa488530e6c47ee19e9236c51088a88e9fd1bd9b495. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T17:44:10Z), 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/NLD910900007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1a991152aed20308db556c8859f22a9d51bd8b31911aa22ab3283fe4731d49c. 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/NLD910900009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12536b2eab1a37dc29917b06edd3e2badd2fc0ac3202b48bcdeff96bc7b368f7. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/NLD910900010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fad3d3c181fb351e5ff5a7a54efd94ec406ad7bcc3bce93c16fa3b7bde42448. 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/NLD911602443.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e8ac7dc5cf1a3ba9818eea84a3f4a17b31e1d4632bbb91fb9e2d8cdf1931dfc. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/NLD912001554.
Shimer Dose (147 Bpm) - Farebi Jalebi Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce8184eda35323964a3944d5d92a6005cf29fece337dbc91f7c1644bf0835d70. Chain 2 (Bitcoin): anchored in block 957919 (2026-07-13T23:58:45Z), 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/NLD912001557.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d83fbe5a9f0ab078e9b9a061c41045e76a5255c4f112479513f9b5dad4bc699. 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/NLD911400818.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2f30e4da638191a3d5c469634e8f9871b5e9e512ee91fa7147a513aebc2c50f. 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/GBLV62315729.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23971bc388ee947da3c444b44e2ab302cdf9721ed563d864f9f2785f3f910645. 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/NLD911100102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bd3f025450a6099afd35072930dcdab1df9a871baa62b301f4825c5229a9196. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/NLD911500002.
Psy Stories, Vol. 2 (Advisory Explicit Psychedelic)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd080a3fe08cdd0931a455972345504dfadd69ab8f4c90bea8f1313291f1936dc. 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/NLD910800570.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0404377d31bd9bba5d711c1d0ddad672a277262da49b2e99d4627865ba369bce. 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/GBKQU1311959.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48dcb2697d7ffc20b144e0f87a71071f2dc925aa9816f4badd253587eb53740f. Chain 2 (Bitcoin): anchored in block 959134 (2026-07-22T16:31:59Z), 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/TCAJF2563153.
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 0x5e521156004afbdc7fcdd7e912c8e2253f15c7742ba9f1cd72fac56cfa67bbfc. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/NLD910800584.