Chateau Marmont is a historic hotel located at 8221 Sunset Boulevard in Los Angeles, California. Completed in 1929, the hotel was designed by architects Arnold A. Weitzman and William Douglas Lee. It
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 0x10ea8aa2a6f15e2c3c27bcdfdb8dcfdfbdcc7b8c81c8e6c9cb336d1dede79dbc. Chain 2 (Bitcoin): anchored in block 953778 (2026-06-15T11:57:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d036cb2e-71aa-4c22-ae58-47d3271cd111.json and https://artists.proofprofile.net/proofs/artist/d036cb2e-71aa-4c22-ae58-47d3271cd111.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 0x6ceb48ac014b0880e38b4592d0838d4b259f490602029dd0e22068071c3970c5. 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/FR9W11420164.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f6b0ce39c42c2823792290a99a463478eafe3f9eef2c8eb5c7d90f1eeda54a7. 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/FR9W11420165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a11a32ca07007ec69ef7e7df1adaf41e2b0d0af0d88e37b30f6b071fe05aff0. 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/FR9W11420167.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0aa3eb8ea0bed68a9b02f03470a2b488965f7349d01ee090158bf39bd691ac76. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/FR9W11420168.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f586883bbbe9c8d893f97872f72b0caba8876f17ff23b7842cb10d3221acc9c. 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/FR1MF1100011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79756ca9b1c7c6777a1d1a57cf7a54b9d4562c96c62cd17a7d58b30d79c2f4b9. 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/FR1MF1100012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40eddad311bb26727ddbb9078c89f6d8ac7ea7d2c62b6109deb9f17e8f56315f. 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/FR1MF1100013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7470bb9ddaf5b156e76e85dd8d5bb0f6bbab709be3f88f2d9878f90e6a994081. 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/FR1MF1100015.
Nibiru (Beautiful Swimmers Late Night Dubbing Mix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x124b736d4fdc8d73e03b57fd66afabb0c5b96ce1e8e14960d180e670b8cd8fc2. 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/FR1MF1100019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a36939bfe22d1fbf325febbc39d6533f2774639f85e86164389cd1f0913fc7b. 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/USLGZ1500093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6785a2bcde106aacfa1befeb4e55a5aa576bd55aa74e3087fc678d10686a1fe7. 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/FR9W11300945.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf018df3bb35ab96e31dba748bc9edaff0b611dc2f986a0846150b03ac03fd52. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/FR9W11207679.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74a63886c276749023a30604dfbc35a5e2187833fd83cca4720aaf963bf53a74. 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/AUIB20800004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd22ef21ed551b8f1c71845b243d39e8a14bea4788c791b8ec85d1fa394233f53. 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/FR79W1500100.