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 0x9b43a0bb2f7f1ee2351b53073a3b8c32534c79ffd5764a9e44198b83e915b985. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ebca11a3-b6e4-4749-824b-2821fbc052b6.json and https://artists.proofprofile.net/proofs/artist/ebca11a3-b6e4-4749-824b-2821fbc052b6.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 0xc64ed9fc757dd34bfd0126920481fbc67b5d23afb847ecc013ff5d3713150202. 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/DKZVA2100067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f57d78cb03a613314c1260f8fe117bbb903a91f075374e7efae9f868a063247. 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/DKZVA2100069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7277986f4bb9e295827ca9d9d2025df355c8b0109248d98ee631ee67ec1a5276. 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/DKZVA2100072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73cd31d901ba1df8b87c46d81873f06b3af4342ea287529f7e66017d991a5c9b. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/DEY472377123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x205b17cfa4a7bd29db45c5db35f6c7cbeb3ec1cbd723cfd67e6096c0300f93df. 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/DEY472377124.
Hereinspaziert - Laurent Floah & Luçïd Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda68abe31abd219a113bbe9f087b24cd2474ca44d9d2ead0949cce883f66c9bb. 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/US83Z2233314.
Hereinspaziert (Überhaupt & Außerdem Remix)
Hereinspaziert (Laurent Floah & Luçïd Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda68abe31abd219a113bbe9f087b24cd2474ca44d9d2ead0949cce883f66c9bb. 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/US83Z2233314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74ab05df7ba179bf5da71f598f809e0b50aaa1c5656f9c42b6c0895aaa330004. 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/US83Z2203742.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf49193673f63359a2882b9131b2f8248882c2e46ceee0053de15002c79ea0153. 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/US83Z2033325.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab640b71ce7ba6fc6029128f9537b259a260bb34465bd20b1e466c3530f1bb86. 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/US83Z1931106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24add84efe7a9e33fec5aff9d54370fd48dbd4566d34064e53ff8fa54dff7bab. 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/US83Z1931107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06ebc770572da037599514a137625cf8eb8ed4eb0a0db56d0a542335b73b1529. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/US83Z1931110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42bfd251777532baf32968c949d293609541636446dcbeabbd68028df0ff6744. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/US83Z1931108.
Head In The Clouds / Nostalgia For Tomorrow
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x398d1da9497f233324d69c145ae7a0631976f1f6a229c7fd0bc8a76872878a46. 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/QMEZE1912650.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25308f040e8cf1ba631d12fb0c449f65a1d789fcdc19fedd7346d7ee20827e74. 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/QMEZE1912651.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79e8c2000fa51f5169c21f0e8ddc3e0a67ddff5f1e32780c1e9e90bd2694371c. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/QMEZE1838489.