Polaris is a yellow supergiant star in the northern circumpolar constellation of Ursa Minor. It is designated α Ursae Minoris (Latinized to Alpha Ursae Minoris) and is commonly called the North Star.
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 0xa1aabf065a219fb06ce3ac2b66d99d906524c4683118498fc1b5dd9ff7ab17b9. 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/a9eafa96-54d0-47b2-bac5-0f9aa577f131.json and https://artists.proofprofile.net/proofs/artist/a9eafa96-54d0-47b2-bac5-0f9aa577f131.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 0xa74d8078b7074b88a1fd02be25448468c62962db4156841ade1b9ab0b61d07a0. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/AUUF12001269.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cfd4a265a56f982a5f23eb791edf6bee274f9eda5ce7cdb70228b79f756a194. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/AUUF12001270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c33e015943dd20e169a9a7c9f754658a0990ce3850f066b29069b6fa9f8d8d0. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T17:14:36Z), 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/AUUF12001271.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9007b5394f3dd209960b1f9ead583941666272cc3dad1db83c775ed50f1b6298. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/AUUF12001272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51a47fb1b3509c6083d082dc824a3a503cf484de387d4c94b529e868fd5a423f. Chain 2 (Bitcoin): anchored in block 958491 (2026-07-18T04:29:42Z), 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/AUUF12001273.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe87cf6b1858ca48ab23964333034e156e64875147f00e880caa38ce66ef7637d. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/AUUF12001274.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98518f05f0600779bcf04f00d3f45328a5aab964864b40ff5e9ac89bfd5e6642. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/AUUF12001275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea97acaa0c6eb458a1208775cbf0d681e354745bee5e96a7aaea2a3b53813e25. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T06:42:07Z), 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/AUUF12001276.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x851beb1a345ef1f8e669466879086db438e2075e69b87024d620db784b2bf736. Chain 2 (Bitcoin): anchored in block 958802 (2026-07-20T01:04:02Z), 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/AUUF12001277.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc60313143833f76a15223859c7a4679c75f811fb6d68f88563dd8262e81befe. Chain 2 (Bitcoin): anchored in block 956711 (2026-07-04T22:48:52Z), 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/AUUF12001278.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a4a18571084a6b320dcd6058cebf45331b16997d586c6e3a93c1c2cfb3c0f77. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T18:08:50Z), 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/AUUF12001279.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc86bd1cff4d89cbc461ce4c04e538c059848af863f8b630d5fd60472a55a14da. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/AUUF12001247.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc754480f3bb06bd2323fa26035ecff422245e222d2823a39a70cfd95e54101cb. Chain 2 (Bitcoin): anchored in block 956425 (2026-07-03T01:28:11Z), 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/DED832000571.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f39771f57d02b964082650ba1952db0e6ed764a228fa216759657eafbd75cf5. Chain 2 (Bitcoin): anchored in block 958122 (2026-07-15T08:02:29Z), 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/DED832000573.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8de4e1f1e28da38a9ef043d1ff1f5cdb3eb0eb830fa12ee34c80fc4165c0bd49. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T10:50:18Z), 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/DED832000574.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb22fba0494bf2a9d6e55cb8101726bab9ba76fa6eb291208ca9f4256230c8d03. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T17:57:46Z), 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/DED832000575.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fff53b46d2263a663db37fb2afac8c81e7ffc682eb6ca6f4822341fcf55db90. Chain 2 (Bitcoin): anchored in block 957756 (2026-07-12T21:36:27Z), 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/DED832000576.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecdc4546e3afd15d516fda9369713fcf296810153b877ab2b0c47cf103bd39c7. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T11:00:21Z), 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/DED832000577.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd14383633afc606ac5088c5cfb8bd5d8c408ab675535ec4f204314b1d8d45834. Chain 2 (Bitcoin): anchored in block 956430 (2026-07-03T02:22:42Z), 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/DED832000578.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf039883559ac5183c68f058b9ac2cfd11687c1cb6169fea4e852fc1564d4f112. 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/DED832000579.
Black Fingernails, Red Wine (triple j Like A Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa903271d8401a8dafc384873c4f6e42e6a116fba22ae4644d99015c72d72e8e1. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USHR22411809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2537a7c1e71a5c2253e906edcb5789d6a027e2a17393295dd00e29d996c4b63. 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/AUI442200128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02b14dc9bde07633e0617d0847fe75ee3583521df38c3e28773cf7e9143900d9. 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/AUK3B2400066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2537a7c1e71a5c2253e906edcb5789d6a027e2a17393295dd00e29d996c4b63. 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/AUI442200128.