Boxer most commonly refers to: Boxer (boxing), a competitor in the sport of boxing Boxer (dog breed), a breed of dog Boxer or boxers may also refer to: Animal kingdom Boxer crab Boxer shrimp, a sma
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 0xddfe8ed94a41a49632f77f8573d2b41e44d84d312336e55b44c3b39f431580b5. 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/a35a9ffc-eacb-49c9-8844-4e8eda224841.json and https://artists.proofprofile.net/proofs/artist/a35a9ffc-eacb-49c9-8844-4e8eda224841.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 0x29c5be38579869201b76a6be560db614ed464724569ec1cbecce2ba4b275ee68. 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/GBEWA2102470.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc989337f75da7e1c2c18021a655bfd2c126905e854cfad6b4d51dd08b23307ae. 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/GBEWA2102474.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x510a8ac864d20d3663f5e119c1d3523c3e01950ada51335c1c133aef70f132f0. 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/GBEWA2102471.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c2896c6fc0ff3cc2ba785e9eb579f14233d9dae30cafa8d74c31936ecca16dc. 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/GBEWA2102475.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x192f6aab889f67335379666f488df5d5cfb3063a7835bda306377fb1e798e0d6. 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/GBEWA2102472.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d7d13bb4e52890a3a0a09705510653a9a70ab095ef9e3f4ed4865838f66646b. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/GBEWA2102476.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39e36dcd8f0e5e1ab02b06c5e279c9d26d31a323466bfecac4e8df65e730117c. Chain 2 (Bitcoin): anchored in block 960125 (2026-07-29T15:38:18Z), 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/GBEWA2102473.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3586644b9b87bdb29a26e125ae76d3904b3f5d00a1191a6a9c211ccb456299a0. Chain 2 (Bitcoin): anchored in block 960370 (2026-07-31T08:38:45Z), 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/GBEWA2102477.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e2fc7f0eb585dc2aa850f3951201b0c854633e6ddb70c4378826275d7bf11c5. Chain 2 (Bitcoin): anchored in block 960108 (2026-07-29T13:09:35Z), 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/GBEWA2402209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf1c3228e1427a6dce66356f0b256c859411c3c8b3f6697792768a9e37ec9624. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/GBEWA2100364.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5c16e1245f5a78d52ce53a1e3f55193d0a6131747095582453ae8dfca02df1c. Chain 2 (Bitcoin): anchored in block 960106 (2026-07-29T12:41:21Z), 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/GBEWA2400177.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x049e28b23577017efcb48b1de346781dad2889d3f78bb00e456f4998928d23f6. 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/US83Z2203674.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8529ca3b87d7d481a3fd47cd9b088e9e505f267d6f3d5100936a5a4b359497ee. 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/GBKQU2403894.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf656bf1f085956dd97e574394b588d0941d7a2c02a4d55fb6136efbbd8c87fab. 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/GBLV62003538.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf7ef3d5a10979c63b81da0c0e3634784077f6ba95545fa1a5de16fe8d2c5685. 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/US83Z2136836.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b2d7abd93caebba864fcb5179c8d59822a46c59752592a8c427ada468a20662. 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/GBEWA2402750.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdaa9c7e4abe536142f4462be872eb0bccf14d78b46f9b322c734daff32bca106. Chain 2 (Bitcoin): anchored in block 960106 (2026-07-29T12:41:21Z), 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/GBEWA2402012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdd919675739137eb3bc3268d339805b5d0aa4bd45323c81d2fdf3088a86672b. Chain 2 (Bitcoin): anchored in block 957048 (2026-07-07T14:18:56Z), 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/GBEWA2400393.