The Fuzztones are an American garage rock revival band formed in 1980. History Founded by singer-guitarist Rudi Protrudi in New York City, the band has gone through several member changes but is curr
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 0x19bfd0a0214b9aef031083de40a8f2c59792f00076a6b221a73c6ed706315960. 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/d8d5bebf-b118-4b22-bf84-c1bf4fae95cf.json and https://artists.proofprofile.net/proofs/artist/d8d5bebf-b118-4b22-bf84-c1bf4fae95cf.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 0x2cb736cd6be2dbb0f34414105ed2fe74dc8a96b9b2081985acf0f77daddbd5f4. 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/DEE351111109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22fd289b3b451870397bb5be29ee27d34a3ea7e62f06b93d6eb61a330e4260b0. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/DEE351111114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcef2634040ffc74a6f96305b7b08b6f011d1e4f07463152a43dc3b4796860ca6. Chain 2 (Bitcoin): anchored in block 958552 (2026-07-18T13:15:29Z), 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/DEE351111120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x857faf7a79c573b7c6045c7229d70c3c4af4de67e46a2f86c0c9e730eb27f086. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-15T23:24:33Z), 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/GBMMS1503002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26fee82c3b8383df5c47fbe5f82c8a1dcef5db5546f6a93200e939e09d20753b. Chain 2 (Bitcoin): anchored in block 958703 (2026-07-19T08:36:12Z), 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/GBMMS1503003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x830159ccf83988b8039c13ac6a9fabe6ce358cbdd3f6410e784c5eb68bd4e3d2. 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/GBMMS1503004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4d483d951465c8a9a8fa9ea1a2e41a206e22e712eb2b8f608e9ccdfd4701ffb. 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/GBMMS1503007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5668d5d3c79188f3fc94a3cf08ff1975d5443ba2dc6a9ce30bd13561ab328284. Chain 2 (Bitcoin): anchored in block 958885 (2026-07-20T13:01:04Z), 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/GBMMS1503008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc20839c4a1dd895477aa97fa0b50e17e894dfcdae4e59733ccd6b39f7ea2634. 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/GBMMS1503010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d53ce7bd94b773ae740f39b80e35e72ed3bcde46627a82989a84179b6856cbc. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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/GBMMS1503013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc8ce7d09370efa298826ac3a31c3bcd9e0caea39147ae50a71f0be7d4d3c0b9. 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/GBMMS1570007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb757fcfe8a762b63ab04d878408d82eb526e0faca93b2ad3d13a9703a5dd2a41. 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/QM6XS2510479.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a694436b814ec42d3eacc08e5a407d56db229b49e3b097e5e9d9065ffd10cf2. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T02:22:58Z), 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/QM6XS2510468.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe72f16d7f6ef29b62599016ba3d82a3783d46066023634b9108885c36da53865. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T02:22:58Z), 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/QM6XS2510469.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4d1838df7253fc676a1106086a47a58eab5f6d4b2fbc9633aafbbcb64e8158a. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/QM6XS2510470.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21e57054b0e249c3fdf732a02a5f0f3003c5d799e8d9501217347b647264844c. 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/QM6XS2510471.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x089fe3ed80c8317d2906056fc65c8ece8c83ad60b47600b3e0141f100b898e67. 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/QM6XS2510472.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef751c2d07bb34eb5fbd8bd3883e38191cde026453df85da817e4e54acd7e05e. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/QM6XS2510473.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05cb108d7fb6b10d588b4b4fd439757585aaf617571f1a264a4100cc72ccd6a4. 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/QM6XS2510474.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2302d4effddc0a8c548b072bfdd5e8dbf250d39295f5ebb024b4738cc090e74c. 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/QM6XS2510475.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x300ac8fe94bc608eb7de8b113958a7da49f8006e3544a08d1a142ffda9558ad0. 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/QM6XS2510476.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba9dc07dc1c459924176b6ca5b1977a1d11f726e96d467580bbc70a66e98626b. 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/QM6XS2510477.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb38278aa7806b67aa06cc8c40eaea21fe229ced3eea9c25185befac9b333e4fb. Chain 2 (Bitcoin): anchored in block 958384 (2026-07-17T08:27:02Z), 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/QM6XS2510478.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb757fcfe8a762b63ab04d878408d82eb526e0faca93b2ad3d13a9703a5dd2a41. 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/QM6XS2510479.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e61b66e6433f20b45ff0d32a11deed45faa0d1c5249fd954a4b2224451794ea. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/QM6XS2102793.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcbd502dd86aa2e02c63f9d2af547ba099ab7aa865ba9f270e86b5cd9dcb057f. 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/USA371022051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd0fcbcedba37c805e87bacedb0f39081b3c4b9fab59332e93a0af1b74ed28d2. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/USA561289791.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cf0fa67cd4e54f48a6b54863a617a5ec06d0f73877c90102a6aca6e5ec8ae18. 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/QM6XS2202007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd911d220dfb0137cafe4b858185c07e71d0ff192beec25b4a2333612624405a7. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/USZPD0610259.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa25cffcf5d7d079fdd35fba0efb5856a04d61fafe0e49a26d44bc1cd53c5edc7. Chain 2 (Bitcoin): anchored in block 960167 (2026-07-29T23:42:34Z), 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/QM6XS2201326.