A layup in basketball is a two-point shot attempt made by leaping from below, "laying" the ball up near the basket, and using one hand to bounce it off the backboard and into the basket. The motion an
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 0x447953e35f3176d1fbbffa4e96550a5a4fc19653bdd1ef874d1cb8f3ba57bb4e. 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/bb9c2db3-1d1c-4d58-8212-e2bb7cf9fef3.json and https://artists.proofprofile.net/proofs/artist/bb9c2db3-1d1c-4d58-8212-e2bb7cf9fef3.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 0x4f6606e03cea0c134e9696e4e5818d804e34f2a2397ebc03539a10a9126ce891. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/TCACY1766552.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x501916e04ba5965563ab58766e1a71f680df826abe2b5ac2a442a9620dab051b. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/TCADM1848481.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd684d15a6245fa73a2cdcb60e6e5707ecb491443c7c17cb95174e8b49afba04. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/TCADO1846995.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25274fd4a22952070400492c735dfd1f3636ce8524c1705b907605c32830c259. Chain 2 (Bitcoin): anchored in block 958351 (2026-07-17T02:38:05Z), 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/TCADO1846996.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50eaabb87a069bf1f19453bed5f3e234c341c12fd91c5a170bfa6e87efa5dcff. Chain 2 (Bitcoin): anchored in block 958404 (2026-07-17T11:34:58Z), 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/TCADO1846998.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56f27575388e7acf056839f8fcf9e7b4ccc6481edf9977625aa15b4c1dbc0720. 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/TCADO1846997.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fb5032cb09f943614a40afd37f8c25e2b35ce933a3430d16e8093f7c780dff3. 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/TCAEI1947336.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa97bace88ce345b11fba7c9dacbebbb23184f17580010696d93681171d0eb19b. Chain 2 (Bitcoin): anchored in block 958410 (2026-07-17T12:18:07Z), 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/TCAFC2012655.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04034a945f60f6b7fa2ab0cbade482b2cd2c3127efda2e9f638277011c076340. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/TCAFZ2282469.
Who You Share It With (feat. Katelyn Tarver)