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 0xd5906b426249afeed6a31cebf60e8da6c736050fcb47891977574d445cfd8b1d. 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/864d1fab-b4c1-40bf-bb36-999236f2d5ac.json and https://artists.proofprofile.net/proofs/artist/864d1fab-b4c1-40bf-bb36-999236f2d5ac.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
In the Twilight, These Rocks Have Teeth (A Compilation of Contemporary Post Rock and Metal)
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 0xd9ab367b1bcbf2358f9e0eced25d765dbad26493bbc34be0b08772d9b8d12fb9. 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/DEZ651713236.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2635fedec9e7483d5d39a22d89ee38712d34385b2ad2080ee226d675a31ff889. 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/CHA012300154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01f8efc19525c26fec2eec2c5ea225e22be69cf2c000ba4bc3a32ef702816a39. 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/CHA012300155.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8dd8736691fd3b55d7d48fc87ce2f545194c31b3a69e3c5f7eda0f34a6c461d5. 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/CHA012300156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbea6dda5aab020df4d3124722659e6ea3d637664f2e01a7582bb3043f3f2ee70. 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/CHA012300173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacf676c5919252b0645d62fa23b1f2593139aa77c9637d4d2e382889d38020ad. 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/CHA012300203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2052f14008a814952f5c215d6934f1d3f3ab00e25e06150e08d802028755ee59. 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/CHA012300174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39a560e91bab4a45c8d9e9851dfa001cbc259658a58bdd921dec244f62b3a735. 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/CHA012300204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7eabe7666e81dea766a7149fcc7670e16ef36753f4af3316799d91583c851fc. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/CHA012300176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca14871aea27c209e9812c62651ae52189549edb4dae4050347f6fcb3b4b9d8c. 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/CHA012300205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e331214c2466478a9c75b47a2fd1ac58cfb26c0fd9fa43dff7b4981e1d54391. 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/GBGLW2400177.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc18f7556d213981e35a968ca502016e993e41efa784ec94fde926edd0f6581d. 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/CHA012300206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdea0ff2ceba18b1238d37a3990f83c51b949e6c0fae63816c24f08885cf14c89. 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/CHA012300175.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x947d28448bda35293e178345f2a0c1ea30e1b160dad795bb2b62f1803a633fff. 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/CHA012300207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38431d16a4b21cd9c0cfe1ce7e8cf1e56a7b90fddced62e6b0ea20a59b83f68c. 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/CHA012300208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecd017289759c64c960811605e913cb2b19b3f3844796f2c4f0c214c0c305a4c. 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/CHA012200081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f6584621630a34711ba38c62dd6cc0715f6ea547b7e64e5694d4bd574039cc1. 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/CHA012200063.
Louis Jucker & Coilguns Play Kråkeslottet (The Crow's Castle) & Other Songs from the Northern Shores
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ea1ea41c9e09108a42069645272704f63ebdd1b6f1e038b522a401a82ea979c. 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/CHA012000247.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0a2e41931e75bdeb02d97196c89137f0c30091564a66dc65dd92348edb8af35. 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/CHA012000248.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x231b0009a7ccfedcfe47f64d235365d6f3458b5b3b246b754322cdaaa8ad2137. 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/CHA012000250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd930cab87e23fdb17ab2637828af1dde2030eae17137152f3f46b87145521d98. 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/CHA012000251.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x109e1e596b03801e95205c55aa6c5f751141d01593a6cc29aa4e6ad8984a3498. 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/CHA012000252.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ae7e5c1f9a6667f50aeeecc9c00477647a7c8bfde817a50c0013569ae07784d. 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/CHA012000253.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ab0978bdc0657a809d2ebd470a968e53d9d7af6a67f1cd73e9e7e86364ed0c7. 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/CHA012000254.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdad281ffee18621ed61ea46847acb6171102cffefa652f87440ad88e997f4758. 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/CHA011900633.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ec409f33d15b4a5e02ea691a9d6361c75011710eac95fe6a220223515f52966. 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/CHA011900634.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c6679417108af71cd279a362757effb878a4e7c7700817c251c05152bd7200d. 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/CHA011900637.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90b38b8977b29f6bf115f2428fbc58a64f7a62b113b473828317e4b3f10093e9. 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/CHA011600122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26d0b634f685c6346723fcd97214942b4daaf1b5532378a203eaf68f73c1134e. 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/CHA011700053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d63f25ff3b1b066056a3efe51932b6ed54a087aff1b531f49ef9cec942b1bd0. 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/CHA011600124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a716a28606e8fdaea7efe7780d409c17ce3a4187d49da87a967dd1078da3feb. 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/CHA011600125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60f23f7b88da87ce13cf3748f2f9b3e71850097b1399a88e40403d12e0048e88. 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/CHA011600127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5eed4eef1f0153f26358bdea722c3ddcfd41c9b5d39c34e7a8e6e2a2bea898ab. 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/CHA011600128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57b635321dfe93d326fb816bb885c796e9e9bfe315df3b2c3163dc598a0ba2ae. 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/DEZ651368223.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7eabe7666e81dea766a7149fcc7670e16ef36753f4af3316799d91583c851fc. 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/CHA012300176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdea0ff2ceba18b1238d37a3990f83c51b949e6c0fae63816c24f08885cf14c89. 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/CHA012300175.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2052f14008a814952f5c215d6934f1d3f3ab00e25e06150e08d802028755ee59. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/CHA012300174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbea6dda5aab020df4d3124722659e6ea3d637664f2e01a7582bb3043f3f2ee70. 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/CHA012300173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e331214c2466478a9c75b47a2fd1ac58cfb26c0fd9fa43dff7b4981e1d54391. 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/GBGLW2400177.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf73cdbcfafdbe35d8967ca2997c1ea639621785da8a77c8cbcf6b3fc4f26f496. 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/CHA012000780.