thumb|right|A recreational motorboat with an outboard motor A boat is a watercraft of a large range of types and sizes, but generally smaller than a ship, which is distinguished by its larger size or
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 0xf3721b1471e6af1d6fe28166a30179db124e24916ee764ed3c35771b954ad010. 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/ec4027f4-5974-4147-bedb-7e8d1e5b6251.json and https://artists.proofprofile.net/proofs/artist/ec4027f4-5974-4147-bedb-7e8d1e5b6251.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 0x4ed82e1212fc7b66f04256ff41c6794590cebb8613afe0b0798b5543fb7551e0. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QM6N22421616.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0157f77589aeff6856419744a33b08f23d32969cd22707331cbe425be309cf07. 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/QMFME2385626.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25a5df594875a2b5b1a1b834775757b15dd28f523b6f40f90064ad6b81e45fc7. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/NL3GQ2100410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fb9a815185dbc6b6ce875d241ac7a76a770a40619e4167a68248639a876031d. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/QM6N22447765.
Mission (feat. BKO, Boat, Quincy Promes)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8a6fbf87e541e5d6d8c14dcfd1cee01eec495d84484fa6fddfa8da004d31ce1. 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/QMFME2385629.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49ae34d297b9c6c3ed1c1784441e9ade32745aa8a0d6b3284f8d66d8930a0cc5. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QMFME2385624.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4900c74569fba4c32c997ca6463a72a68a6f542820eb2a2ce626ad9cff3f5e1. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/TCAGG2227457.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0157f77589aeff6856419744a33b08f23d32969cd22707331cbe425be309cf07. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QMFME2385626.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8a6fbf87e541e5d6d8c14dcfd1cee01eec495d84484fa6fddfa8da004d31ce1. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QMFME2385629.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd00e5bca933d931607c3b0de6165ab420bd07620dee0308db5d7fe89c413c4f. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QMBZ92392482.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x435e46b9672275fa6b84ca4c3dac29dc9d3a89f55be556cf970b17e9727df513. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QMFME2385627.
Coke Deals (feat. BKO, Boat, Adje, Kempi)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3708d3dc46a826f54754b0987b9fbf243a51c03c1b70702ee849bee7d925ef5f. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/TCAGK2212752.
Uno Dos Tres (feat. BKO, Boat, Eves Laurent)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe71628051d56384ca6d61ef74aa9f4099e5881e8aeb69cfc0cfd19e53c7ceca1. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QMFME2385632.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23868b6e7247602e716f85a0913fa5152b130e81f3f1b731b0a7859c3d6557dc. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QMFME2336425.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0147a806290d701284956c1f2c29bdb05a3d4805350e1e5e56ea1de27b290d41. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QMFME2385634.
B's In The Trap (feat. BKO, Boat, Johnny, Priceless)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf268a8ce66e30bfbc75e21d4deb97bd272b23e5477cd3b93ecd5581ba3f31e7b. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QMFME2385635.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c5eddc93d5fa8ff02186056729aa483fd70e84030b84b58c274e7e6dda006ca. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QMFME2385636.
Gucci Gucci (feat. BKO, Boat, Jhorrmountain)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ec6d9b3a7e967d670f66f6ea722140da7fed75142d8e318711f3b737b22c9cc. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/TCAGL2267156.
Emotions (feat. BKO, Boat, Johnny, Jhorrmountain)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0070c5ce4380ac0bf906fc1ce84981df7fd8dc615a21350a9959f010fa5203ee. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QMFME2385640.
Pornstar Martini (feat. BKO, Boat, Jhorrmountain, Vurr Flashy)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x687b83192faa4c2cdb01722039aadb43c1369d35125a0b7d5cd1e0c5a116b086. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QMFME2385641.