Sunset Rubdown is a Canadian art rock music group from Montreal. The band began as a solo project for Spencer Krug of Wolf Parade, who released his debut, Snake's Got a Leg, in early 2005." Sunset Rub
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 0xe7af4c83637b8570d050bc28d179d204171bb92d0c588cacb64315b3f3517643. 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/620cb820-70bf-4310-ac4d-7d7202584cdb.json and https://artists.proofprofile.net/proofs/artist/620cb820-70bf-4310-ac4d-7d7202584cdb.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 0xb65e730208dca26859e2cfc4b506358a8caedda839090a529380e6e8f9f07a9f. Chain 2 (Bitcoin): anchored in block 958380 (2026-07-17T07:07:02Z), 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/US2K70610058.
I'm Sorry I Sang on Your Hands That Must Have Been in the Grave
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1217fc34047cacc7e05d081d8daad675ced56f08b2e175bc3c96365dea0ec48. Chain 2 (Bitcoin): anchored in block 958828 (2026-07-20T05:21:06Z), 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/US2K70610060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8cb9e43e7e6cf62ba079f56069db97ba460f3f2b82a2b70d721d0998d46f130. Chain 2 (Bitcoin): anchored in block 958263 (2026-07-16T08:19:47Z), 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/US2K70610061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x343ef357286bba23a201a2bc2e4adbf6c9b2c8e512dbd88342a9669b56093da8. 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/US2K70610062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe054c1166f46a808d207f572d77984d3c865681c12600138a5665147b7758698. 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/US2K70610064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5a08b3aff9077775d0b0e447586ba8180d9892aefd27b019c2ae753bfb4a5d4. 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/US38Y0711302.
Up On Your Leopard, Upon the End of Your Feral Days
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d64464acd6b5120a570733a9764543f612b84fe6dd40e41856e3289c76cd976. Chain 2 (Bitcoin): anchored in block 958576 (2026-07-18T16:22:28Z), 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/US38Y0711303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7588d382f2acef265621d999a82042bb38f6e33f8f6e22ac66e7b298ba3e0cac. Chain 2 (Bitcoin): anchored in block 958322 (2026-07-16T20:44:14Z), 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/US38Y0711305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80b028367b037d7ad8d7ee3126815bd3c1d0d46449b3cdcc5325d127f2acc429. Chain 2 (Bitcoin): anchored in block 959010 (2026-07-21T13:22:35Z), 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/US38Y0711308.
The Taming of the Hands That Came Back to Life
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7205f2acd9c3853379559d33db947a42dfa2ec77af1b1fba77403b7c87ef668. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/US38Y0711309.
Apollo and the Buffalo and Anna Anna Anna Oh!
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4035a83bb7d773b8a29e357228f7e576b59420bd408dd515c3acb353ee53e4a. Chain 2 (Bitcoin): anchored in block 957863 (2026-07-13T14:41:15Z), 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/US38Y0914003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37f6f92b6d2c359aced339ca71af17aca5d6ab88627402c5e2d34bdde3899258. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/US38Y0914004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67745927d1f698e11f47e0fb595a5320c607721770e29f98c41ba11ac02f6057. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/US38Y0914005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee92223e3fcdcc44d315bd02ad4892778a5756f43d715da6df4a502ccc4b1435. Chain 2 (Bitcoin): anchored in block 958134 (2026-07-15T09:14:08Z), 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/US38Y0914007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefc88742bfbb1b4905ecd4059dc7c36291762b7d804e8c3871c9105d10a028c4. 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/US38Y0914008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7469fc78f3350bf737e66115e4cf7176def413e034da118fd327aa86eb692da2. Chain 2 (Bitcoin): anchored in block 958303 (2026-07-16T16:39:24Z), 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/CAOYH2400011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf62e5262df3dfb210d741b945cf43f9c11d989cea240a9c3f2c5e7fa4dab6488. 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/CAOYH2400012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd600a7e9c98653b50ee8b8809799a2fdfa9079d3d5d8f94ea24e15b4dd5045e. 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/CAOYH2400014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x986fa92ef4171a1a5bb130a2ac4a56b16b41e322e393eb29ce12fd7c2bd8ad48. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T15:36:35Z), 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/CAOYH2400015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x707eca4355fc2acc2dc1bcaff4cd552362c8db307a9b25f33136750a269fb39e. 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/CAOYH2400016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e575927118046442d7aa607c8b971bebb58bd372bc9cd534cc6276a4103c257. Chain 2 (Bitcoin): anchored in block 958658 (2026-07-19T04:09:09Z), 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/CAOYH2400017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15f5f35fd25828d427293740e11ea9d5ef90d41faa24a34252c51904b11990a8. Chain 2 (Bitcoin): anchored in block 958700 (2026-07-19T08:09:50Z), 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/CAOYH2400018.