GrimSkunk is a rock band from Montreal, Quebec, Canada, influenced by punk, rock, progressive and world music. Their style is self-described as "world punk". They are regarded as being part of the fou
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 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 0xbd389b1474b7d6e3f7f113c70afd1aa41b24cfc90ff1344b29fff5368d96c46d. 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/814975fa-544e-4520-9806-925aa273d098.json and https://artists.proofprofile.net/proofs/artist/814975fa-544e-4520-9806-925aa273d098.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 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 0xe788e660fe0f101ba016613ada4990d9df704d727e4ee56ab91d9c6ba0e7e334. Chain 2 (Bitcoin): anchored in block 958686 (2026-07-19T06:43:29Z), 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/CAI259800501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0664c4e0ae5f4d1e23193aafcbdb1629b9f71f9b114fcbd8a925de399972a35f. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/CAI259800502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe73ad248b13bf089ad8d761cd3612f4487ef9c5f46d6330f05fba6e3b70c8efd. Chain 2 (Bitcoin): anchored in block 958600 (2026-07-18T19:24:05Z), 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/CAI259800601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2b52107081f4bab1343c9c3d93619ac2e76568d6f2a861260d43d4103177b72. 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/CAI259800605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x724d6054a55f2e8162bd7d03866131219b272779a024f42124321221a6e499f9. 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/CAI259800606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa89c2e62894df4ae1200e2990ea945b76f1107ba651a32f2ba832183581643d3. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T05:50:22Z), 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/CAI259800608.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfdb75a2cb52ae50c67525ff29b2120173baa91e98fe611c62a5ed990fbcc4f6. Chain 2 (Bitcoin): anchored in block 958541 (2026-07-18T11:37:54Z), 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/CAI259800609.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x246227b68caa638ff32cbf0969e872df28b2694869c98e8b62bd593540b0cfd4. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/CAI259800610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30515e6429867e9b5881cccca56f2d232531861f8efeed79e10b76aad400a86f. Chain 2 (Bitcoin): anchored in block 958667 (2026-07-19T05:04:54Z), 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/CAI259800613.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22503a0acb950cf02fc8b9c673ed5dfa7c760a54f135611f8ee6025c0e92f686. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T12:03:04Z), 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/CAI259800701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e2b3db356df98bba3decfcba64574bcfb1833a083df626d4bea682ed3a88bdd. Chain 2 (Bitcoin): anchored in block 959054 (2026-07-21T20:19:31Z), 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/CAI259800702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62a22738fa7eed1ca7074d8778a091345ba685eb28946dd18f20746e145a6240. Chain 2 (Bitcoin): anchored in block 958917 (2026-07-20T17:53:56Z), 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/CAI259800703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaea5954e394f874fdf16869e09fa69bfd5ba1a5b5bae470668588e2089aa3e80. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/CAI259800704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdeb11d20a6162180908f1c089be647b16cbcf6cf6be9aa12b0e6529c41f1726. Chain 2 (Bitcoin): anchored in block 959002 (2026-07-21T11:47:29Z), 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/CAI259800708.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f1a2cd774ea1913377f8e94b99a5ec407c30d8e955514e358189537c9a794b4. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/CAI259800709.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf669e718006d511741a45d63308d4c4a3222a050e3c390af00c3cf307f493254. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/CAI259800713.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c83e271893e2b04b07abbca572cff19fa3fb16915f4b3aaa34e2ef80bb9768b. 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/CAI250201901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2f830001e289e7e2a11e1f7e5d86c0e10d0e04fa45fbf57114935874ce89de0. 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/CAI250201902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe265ff89ea7bd0c2e5de9381a511365aea6e43c42245d36d3d15f3cb896092a5. Chain 2 (Bitcoin): anchored in block 958436 (2026-07-17T16:42:22Z), 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/CAI250201903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71858dde8216de6bedcdc207641e3dbb4f9906cc6143ba0e49eeb8ebf5d97fbf. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/CAI250201904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8ef9bc67e597ccd8c44f31471547f87ac5245f3ac1809c0e66131b3cd65c60a. Chain 2 (Bitcoin): anchored in block 959065 (2026-07-21T22:00:50Z), 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/CAI250201906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x057c434e3e4b297c3f4868d79272fc2dd3ce29e61c7fd4394162028aec7e89c1. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/CAI250201908.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa808df696c58951bd2ce28f7a304e34d5abc73454998554f6674d737898411df. Chain 2 (Bitcoin): anchored in block 958656 (2026-07-19T04:04:08Z), 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/CAI250201910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ec567c1107bf35a206fe28298689ea4df2ed9e690dc5c5d3e64dc1ae98ee00a. Chain 2 (Bitcoin): anchored in block 959065 (2026-07-21T22:00:50Z), 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/CAI250201912.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5dfa401d41d7e0d3ada5d1f09179befb1496adbf930c775089cd07fc06efe8a. Chain 2 (Bitcoin): anchored in block 959094 (2026-07-22T03:33:16Z), 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/CAI250201913.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb069b620fb704dd653e5021a9f5de33b7ff8e0fa696be22a63939a7f4daba6ff. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/CAI259700101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e851f64962a04140f32fc85f71d1dac598d98e7b3f391e560f67745e005383e. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-19T22:55:52Z), 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/CAI259700102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x653355271d5216fb83c3e205d5d6c092266640111c55743893d0d2eb168c9770. 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/CAI259700107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85ad6f72fd16dc03afe1fd16a48a768c4e5ad820e8b52b12cca73ab706a570ff. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T18:54:07Z), 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/CAI259700108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x704afa73b83b4473ac465e0075d28f251be318a77f140b40ca89365b1791293a. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/CAI259700110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f5775bc9ba113d674bea3b2ecf534fb2284e20e7acddd00e1988be66ed7580b. 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/CAI250202913.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e72d6ca95bee5354b494ec990f2a1c303d09acb23c6447da57c3fc204000c04. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/CAI250202914.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x751b34600969859f3b3930bfd14540fe2473ad27c13aa0fe920fdf9e9cd73302. Chain 2 (Bitcoin): anchored in block 958541 (2026-07-18T11:37:54Z), 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/CAI250607402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5157edf5f4ddc0a2bea25c84ceef700bf083c1c1ce4c8c7ce120ec7fb514f98. Chain 2 (Bitcoin): anchored in block 958594 (2026-07-18T18:05:01Z), 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/CAI251212902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf25956374d2b75214f6cba55836147768204387c71c72aca11dccb4c629aa515. Chain 2 (Bitcoin): anchored in block 958631 (2026-07-19T00:50:09Z), 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/CAI251212903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeeb5ffe1f6d065464268485bfe54043e39623974b63540de917b1cc0eb949833. 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/CAI251212912.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe429a55009cfc559ba3b11f679da1cce1db969012263299ec823018f18b374c3. Chain 2 (Bitcoin): anchored in block 958202 (2026-07-15T21:23:21Z), 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/CAI251816601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebeabec76786e23d82786f1c67bbc3945f822390b5674f1c73cf125634f6f4b3. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/CAI251816603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ba5114ce3a95953aea5f428bca4762cd536b2ca98dfcbdbd83a02ad423267d0. Chain 2 (Bitcoin): anchored in block 958878 (2026-07-20T12:32:15Z), 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/CAI251816607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x730ab5d1c9cc8e449807ff677f4cfc2e01c01c5543fd1d4571e3c14866186822. Chain 2 (Bitcoin): anchored in block 958873 (2026-07-20T11:48:10Z), 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/CAI251816609.