Alaska ( ) is a non-contiguous U.S. state located in the northwestern regions of North America. Part of the Western United States region, it is one of the two non-contiguous U.S. states, alongside Haw
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 0x5c5ef54435284f31157036756819dfea4436910264bd103c4179c26b709284f6. Chain 2 (Bitcoin): anchored in block 953701 (2026-06-14T22:16:40Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/74f7bbe9-b8fe-4037-8ad6-cb259bf71b04.json and https://artists.proofprofile.net/proofs/artist/74f7bbe9-b8fe-4037-8ad6-cb259bf71b04.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 0x843d8890ad8fff4617e6b1455c6713dbc36b8b2cb4c9d8a6c1b1d5f507fd26c2. 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/GBRZZ0920005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3ac73afed3f51adc42417bb55a83c746109ed7d27435fc63b53dd82b23e42ee. 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/GBRZZ2120049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba27140482952ccfb01eb4bda23b7c1c8b64fac90208ac2fa25e455576e0385b. 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/GBRZZ2120050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a7110a2a9c8390f434cae63ea97a15cb31780bbb551288f3466e0ee32dd0555. 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/GBRZZ1020018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02071526914713e3af67470eca7b7d0b5b0843cf5ea9166f00019c131a6e6625. 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/GBRZZ1020020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a0adba8e1fa626d17f47d259cf1170e594be7942ab1e0dae129eb78ce5f6591. 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/GBRZZ1020022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec4c2d46668039d92f179abc775c7507049f92ec1475f034814a31375a322415. 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/GBRZZ1020025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd97ebf93f64574bc2110092ddd45f35b35d4fb7500825fdfee562fd7902114f6. Chain 2 (Bitcoin): anchored in block 960303 (2026-07-30T20:11:13Z), 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/GBRZZ1020017.
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 0x944bb1fb451f80749e2119e83b9724dbcc0a8ff1b3869859fce72552db6a4e61. 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/GBRZZ1020019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c402e89d56608b3ebb21ba5ff56148f56199253d57e6b0524ff1c2edbdbbf39. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/GBRZZ1020021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4d0c85960545f4c1dbd89104d45b88ea71afec084e1c4618b6905c8c47b6fd1. Chain 2 (Bitcoin): anchored in block 960389 (2026-07-31T10:20:10Z), 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/GBRZZ1020024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcaedd7f81d073c8280f27225e2da5136c5145daf1d67707e2042893a79c7bf2. Chain 2 (Bitcoin): anchored in block 960296 (2026-07-30T19:11:09Z), 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/GBRZZ1020026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d9f9a6467adb2152cf8b358e883be3fc663033a494e342cfecb299252b43ff6. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/GBRZZ0910001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x905f4420aa3a0a655c0629176931073068d9f44b2bc3a21835cd6be50d96c8e1. 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/GBRZZ0910002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x274690d54ffaf808b5bb094d67deacc05a25c7e3c06f4ec88000ae72dfe947dc. 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/GBRZZ0910004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecce3bf17fc992782149e7d458bd2b32ee11725e98b841f8182315e8622542d4. 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/GBRZZ0910005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5233c9d5a095266b0859fca5c9e08292661cb09eabdd0e33793601c737582847. 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/GBRZZ0910006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7848fe6d550fbaf0252c34587fb02264dc27e17688065ecc15d023b97853bb50. 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/GBRZZ0910008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f869d2e28ad071d669f2a06d9fdc97ec41875e7106aeffac2d9e57a6a229894. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/GBRZZ0910003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fe89b6ebad2684ff08fbe2b0863543dc10d6de9721e0a37da7b77945e141d19. Chain 2 (Bitcoin): anchored in block 960317 (2026-07-30T21:35:24Z), 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/GBRZZ0910007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51b11e122aa68c1ddf339854a8ad81868f363f0f391d986e18fda00f259c9396. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/GBRZZ0910009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8aa1ea8d12e70c0a24b305a3da4769f82e9148bfea3ed19cc2f1351ebed5bd5. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/GBRZZ0910010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c55a9f0a1fb74d60ea006004bfa398015b3ea2a11d8d4199f83866172479614. 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/USA560515258.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0139ab5a61427d488ba6dccf300c3e2028c9a1756eb6a2ffe4e6e4c148da4506. 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/USA560515261.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde76a54c9fef9940b37da861b52010d824e2294f9cb15eeb3a97bfc9e7d24f7a. 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/GBRZZ1820047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b24ffecb83b1fef7f8f652a19a2d0d95272a8f8c1674c33882aa45810c5373c. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/GBRZZ1820048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57781052ca21ffc12ef77037fd5fb8a0c38bff2b07c3dfb749c557b4ed4b109d. 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/NLCK41031057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee76027ad442377f86787cafd2b7943e860627ab224ad841854df1568bf0abc4. 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/NLCK41031058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x904b2e3a5db3d8d63394c81983fc406d169df8f055fb7c26100c78d1ef865259. 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/GBRZZ1320033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4810dbf0d21bc11846bb03d2bcc9d5fde2f0ba757afccb3a3486ce637a87fe5c. 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/GBRZZ1120030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6975c7c07dc9dfc72b02ad1294ebdf6a1598a845ae76a6c572e3871dabe99a0. 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/GBRZZ1120031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6f55c88687ae0acbf8ebe6f94a63e9efc456b058bc828725e96b2f19acaed0e. 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/GBRZZ0600026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5eb7f6e06c6da5d00efbb8b892530d66bcdabf72163d104c13fbcf4c73f21c2. Chain 2 (Bitcoin): anchored in block 960404 (2026-07-31T13:06:57Z), 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/GBRZZ0600025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb80e55cd6759a8414e1307c3f312177730df11989f4cbc4a2d59eb3b2d8054c5. 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/GBRZZ0920003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11472d081a6b43e7f80224a14507c6df2a1d237694ba249adee8eb01aac34a0e. 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/GBRZZ0920004.