Splender was an American alternative rock band from New York City. The band consisted of lead vocalist and rhythm guitarist Waymon Boone, bassist James Cruz, drummer Marc Slutsky and lead guitarist
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 0xaaf577b9ee0fd2dce31f0d279b28c789a02dc9dd525fc9c30388ea03a1f9c89d. 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/ebe029bc-3e14-41a4-ada8-f5c3574200b9.json and https://artists.proofprofile.net/proofs/artist/ebe029bc-3e14-41a4-ada8-f5c3574200b9.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 0x1465335a044fb0353eb2df519d1d9b602e299d69b05a6a04fdeb12a2fb9195fe. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/USSM19804890.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc42d4d8933989a84f270090de8978fa90243a4a9738c33c4d7ad4277e9999ed5. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/USSM19804898.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d0fe55007e0dcdd10555bb4336d2a12161ec31c6b3b5fa1217815845c3fb807. 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/USSM19804894.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7714bdda4aea3b76c3d3a505fe40210fce6f63673800b2c2d343e3c31de28657. 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/USSM19804897.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56cdf185416c33134d787e8ac28acaecb8324cdfa48ef76f622daf33eff309bf. 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/USSM19804899.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7993fafabf2706b6cf1de76184c7375bd155cd18aa49ea0c7d0bf0245816ca81. 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/USSM19804896.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c252c9d23e3059b8a723ea3e215d19d4815151242a4e5a0fa8dc713e9d44382. 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/USSM19804900.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e1ffcf0657d59c66974baed671dd2a0bff7e2862a847dffc2a1ea3e288273a0. Chain 2 (Bitcoin): anchored in block 958770 (2026-07-19T19:26:13Z), 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/USSM19804901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ae46f63a45fc472b9ca575dc68487d346caa7b1855f1179543a1d9328084bfd. 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/USJAY0200086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf79405265201211c92029f21ded6e020deb0e487790b645c9941ad0b9f7f0c7c. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T13:14:32Z), 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/USJAY0200089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a1932c21600fb9305794fd455f9f12dd367de96d07dc9ec912252f1c1438fef. 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/USJAY0200144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6694df76b7a2218b8664af8827ff2d48d4ac7bcad6e35783061fade04e6ebc17. 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/USJAY0200091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc58c80ef4bcbf3d7361bab4f13427686c4e53592ea0676fbc8f6b68fa9cc9ae6. 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/USJAY0200092.