Sleepytime Gorilla Museum (often abbreviated to SGM) is an American experimental rock band, formed in 1999 in Oakland, California. The band fuses classical, industrial, and art-rock themes throughout
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 0xfcd620c9aed1b0cc57f04d5367f38f0dfc5783a7de4bee7fde633faa95a88958. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/cdf50297-4452-4d6d-b017-3746442b35e0.json and https://artists.proofprofile.net/proofs/artist/cdf50297-4452-4d6d-b017-3746442b35e0.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 0xfb170e692142433e47ca6814061f34e161db7eca904ab7cbc7e4cf537a433be0. 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/US2420607501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79046ea74679629e45ec269e0007741df3959f381330476056b620be1fb5ec58. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/US2420607502.
1997 (Tonight We're Gonna Party Like It's...)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfca8371af2a049b2eaf4744c5e47b883b0298a3ce0767a8fc7a8459f9d629f10. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/US2420607504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc43e718d97c7286c97a327da72606083fb0c50a3e7b2ecda6bf1b2bb02fa7982. Chain 2 (Bitcoin): anchored in block 959009 (2026-07-21T16:00:15Z), 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/US2420607506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x419fc9259a7b35f22f5f507788386dd4d2500f2d34e1d975497cce0bd4c9176f. Chain 2 (Bitcoin): anchored in block 958146 (2026-07-15T10:33:22Z), 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/USA3V0400186.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c22f4db1d82dc3da390dd91de51f6e6723589dde021374ed3d4bc475cfa95b1. 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/USA3V0400187.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x739f3c6972628e70e5a0825b8edeff2d2a6323db0ecac0b65858e7655b2d8915. 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/USA3V0400188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21110b1daed3235903466172be5c66c717f6f5ccb47033e686e81313dd7b7b22. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T18:25:21Z), 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/USA3V0400189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x450cb4a36da6aef9eb067e0d8a59229ff3b43b73da88937e769faabb474df651. Chain 2 (Bitcoin): anchored in block 959010 (2026-07-21T15:27:25Z), 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/USA3V0400194.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb170e692142433e47ca6814061f34e161db7eca904ab7cbc7e4cf537a433be0. Chain 2 (Bitcoin): anchored in block 959010 (2026-07-21T15:59:50Z), 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/US2420607501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f672ca924d908d0ce64929d2c766e8bc9e37d8a6f851c6b10375713ac9617e0. Chain 2 (Bitcoin): anchored in block 959009 (2026-07-21T15:06:13Z), 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/US2420708201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbdf23ce2e55a881ee315a5b53327acbd0cbe586cc919c56f30af8cdb3639e49. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/US2420708202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0099ada324d816a877bfb039ed828415aa1488b88f4de11d9c1672e269b2dfd. 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/US2420708205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a7317d49de2970673e30bba2c7f4710079d25449752e29d3a5e1f657b0488a3. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/USJZA2480101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x751e607b9e03da7877bdb5e718a48f69f317ad2debbdb06939b0adfe234633d2. Chain 2 (Bitcoin): anchored in block 958839 (2026-07-20T07:01:59Z), 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/USJZA2480102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39c22a15093498bf1ac5ff85ba00925b4bdfd470b34c4bf62f409d6fcc9de78c. 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/USJZA2480103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09ce764697d76180cbc4842b5296c6ce572067efd9cab3bdea42a2482fc63cb3. 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/USJZA2480104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14761d11ddb962204ea65c4724dbd5ace84f4fd3c01eb26d85d274a4c83348be. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/USJZA2480105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37afa9f4cd23f509e5e8976d2e01f40c7ece2384f52274bcf81ef902cafc2901. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T15:48:23Z), 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/USJZA2480106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50b0445e024bac63cb8d67510b6c697f36eab73a3fda0e1908a602ab80345f35. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/USJZA2480107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61c8e119994cd5998874963b0e85d1cc67172bb90ba1b9f35fd01d051f719199. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/USJZA2480109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcee196de983e7fb3143bd89ea01cb0df8f1bd8a69a27ee1b97b7e93b9c6bca00. Chain 2 (Bitcoin): anchored in block 959052 (2026-07-21T22:43:46Z), 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/USJZA2480112.