thumb|Makana Mountain ridge from Limahuli Garden and Preserve, Kauai, Hawaii Makana is a mountain located on northern shore of the island of Kauai, where it rises above Limahuli Valley. Makana is a
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 0x8f2615cd64038225da933ee505676ee132fa787376740ac5581f26866e54c7c0. 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/baabce0c-2b75-4021-b2fc-a8bf53ba9ac4.json and https://artists.proofprofile.net/proofs/artist/baabce0c-2b75-4021-b2fc-a8bf53ba9ac4.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 0xccb32317988fca5082652d6d2024bdffc30c07e2fa014f2c98c7f0855c77640a. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T17:06:40Z), 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/US6YS1200001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6210605f8a765ac5f581f818117cbd67bb5979bbf9dd37248d3e09c362f5a82c. 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/USECF0830043.
Ki Ho'alu: Journey of Hawaiian Slack Key
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a1b11dcbe844fc0319a39e5728ff2eada9078dbd25eafa5e0dca76e8bdc85d8. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T22:07:55Z), 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/USECF0830016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91329a4bb662c897b8c31e52bb5693779d1249016089858dc1f525a0037d7f7b. 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/USECF0830023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d81aa5ae4d570bfbc3f8112da422c8e66d1148f448c197bfd046f2fd4cb8805. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/USECF0830024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce527752ed1f43c168591054228638de7ee196268f4f2d4a40d8aab26cd45e38. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T19:51:47Z), 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/USECF0830026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b64d7d42cb97fcb6d351675fbefe958e819af72be898cb3c350fead455adc03. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/USECF0830030.
Venus And The Sky Turns To Clay: The Instrumental World Of Makana
Venus, and the Sky Turns to Clay: The Instrumental World of Makana
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x445fbd8ee4c138caa9eed71e88686a2c085d1d45aae5c013fd2129268d148e67. 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/USECF0900001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63f874852d255ca4ce06d94325f0834cecbdf1590b4751d87fb3e47cd96172ed. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/USECF0900004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d42a7491dae4c11b030d0a713614b17c10c0920ce71e687b36374c7b22bd7d2. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T02:37:01Z), 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/USECF0900005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeab9014852f4c98149c5c15dec16602336bcbe9a8ee24d4ef02cdcb1a5f0079a. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/USECF0900009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0b25484169ce13983b3171e3b179d7048ca4887d048c27c04b4964664055bf0. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/USECF0900014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24ff44352d83abde1c03f0422494baa2ef2c67eb35cdb01d3be9709536736bf6. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QZAAJ1901329.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbee957f0a8095d6322525445d685fd7c06d00d6ec2f1171f7d33cbad95c3f8f3. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QZAAJ1901844.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb17aacf5456a0602a27be08590461363d9ac2811a75659503a62249dbdc9e562. 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/QZAAJ1802455.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84f362a46f1ba7beedb68e08befbcd89028e005efa78b063de08b5341624444a. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QZAAJ1802733.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d7b704a1321d16cae4be0cb437b79854188eab1829a1201b05b9566ad7031a5. Chain 2 (Bitcoin): anchored in block 958907 (2026-07-20T18:33:46Z), 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/QZAAJ1900395.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9d680e8b6abbd9fd4ae25ec4b1b4528799b0577bf60a181897942127916279c. 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/QZAAJ1801242.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x684ce56a0093a1d93338c60d6db4e54376d5460aff0b610e4ac310bcda3e72a4. 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/QZAAJ2103198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x734cc5ee84af16f2bbe0e74451f1582dc21510275f3bca26c3d037a213c8881d. Chain 2 (Bitcoin): anchored in block 958561 (2026-07-18T14:22:01Z), 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/QZAAJ1802449.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe67d33540521db064cb0f4222d88e448620d84bfe1cfdacd4ab2914ecd375cc9. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/QZAAJ2102376.