40 Watt Sun is the musical project of British singer, guitarist and songwriter Patrick Walker, founded in early 2009 following the dissolution of his previous band, Warning, one of the most important,
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 0xef442b874b57681747c64ada775bd2c456fb7e6ee58e37bc41d494429bc21d76. 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/adcca260-1180-4f34-812f-0dd777c289c9.json and https://artists.proofprofile.net/proofs/artist/adcca260-1180-4f34-812f-0dd777c289c9.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 0x1578598c9605ee77c1f11d4fdb9f87020146adcce8c1a8969449ef6606f8180a. Chain 2 (Bitcoin): anchored in block 958349 (2026-07-17T04:50:18Z), 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/UK7J31600003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4749c7ccbe531f74c040d2a8168dc9382ec0247d6cd83596b26d3839d11c6eec. Chain 2 (Bitcoin): anchored in block 958140 (2026-07-15T12:41:33Z), 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/UK7J31600004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26914fcd60e517a65577a75308220358e0e2e990db5d6e02923978086f300c3b. Chain 2 (Bitcoin): anchored in block 958349 (2026-07-17T02:28:59Z), 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/UK7J31600005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7dd1ac4cac0025e5796ac9a006dc4978bcfec0df4fc7b11ff20ed52b793c2ac. 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/UK7J31600006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3edd0372a8fc77a8470282e45559703c40f6e3e0d78b7b6bff046fe6d6c5bb34. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T02:46:47Z), 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/GX53U2069632.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef822b53950b1dacc92cc4f04f745d11606ba9a523d0174a430ad09235c47f0a. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/GX53U2069633.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6ff46fdf69dffe07f03504820116ed4501d5c8db73d7147bf6e5f1fd76a040d. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/GX53U2030677.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d988577bf5c431f0c0e37f80477385d56367b74ff8c7bd4e8b674faeb0f1505. Chain 2 (Bitcoin): anchored in block 959001 (2026-07-21T13:55:28Z), 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/GX53U2069634.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4364bb6f3e257472a73e77fb18ad051691b4804801133e48d97a5a72a6529ca1. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/GX53U2010987.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcea6b073b04f6a6e113dd1006e16ccf1897db4fe991544a19ff14e564b0aa87c. 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/GX53U2069635.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x749d2d9c36b5a3def9b666d6db0c33c25e0d39cbb4ca027b6b8986629cd2fb0a. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T21:49:05Z), 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/GX53U2055630.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c57bcbb9581372eeb70e75b2cd341af3443f4d49df2653f622bf0f39674f913. Chain 2 (Bitcoin): anchored in block 956405 (2026-07-02T22:22:35Z), 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/GBMA22395396.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x621bfcac028940e389da3b9c58eba5f63b6448facd8ee9cda9f8739b57079d82. 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/GBMA22395397.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c5fedcd3329907e4e13ac2c40b18f4b2025073e56437f20aba990450dca2d53. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T02:46:47Z), 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/GBMA22395398.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13fec250c348a666c01483d69c10dd296c7f0e3bd138c89bac6bc839f5332df3. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T09:16:54Z), 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/GBMA22411372.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd027dd05e0462dbd02021e29d7c32d6b01db08f379152443d0ef9d7a03a75a22. 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/GBMA22395399.