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 0x2e6d985a46360a77f268f4e27df1bb51857e4992a4279ab971903097df75956b. 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/5a69d716-1ded-421a-acd1-d2236526df90.json and https://artists.proofprofile.net/proofs/artist/5a69d716-1ded-421a-acd1-d2236526df90.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
B-Boy for Live (Red Bull BC-1 Original Soundtrack)
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 0xa1e38988c8007c30cd4f835b4d81518a375b7dc56270cdeed6d20460da4af910. 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/ATR980019102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf8df2e05a7fdd5fe06d9c5e8fd6f56225c99d9c0d484c19ffe5ab4eca061640. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/ATR980019103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6de0e4624d990a035cba6efbdd8d7ac8e47430b998c0829d10c512d3fffbdce1. Chain 2 (Bitcoin): anchored in block 959008 (2026-07-21T15:11:53Z), 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/ATR980019106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01550e29769e66e78079ead4627688e1efebbfc5f46090df44fa91127b76e6a2. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/PL44J2057121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcda43956d54373b5b426c26126c4c6a32eba530de9f91ebaa43951361433c358. Chain 2 (Bitcoin): anchored in block 959058 (2026-07-21T21:09:36Z), 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/CH7812229027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cb0bf4833c27581ac03867859a2f83ff93a1b9aecfaae38f09b2f3a3d7040af. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/CH7812229029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd25f9e027f0206e40e3629160c211b8c7c80eaf63f60728a7c64a21385e87d23. 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/USAE81064178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fa40df1667adbb21c7a5e4466fbb304f250465237eb1331c36ab3ba553658c4. 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/USAE81064176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56a0045aa207a924991b97182c7222fa8f993bed15384cf730a3d91f808d0480. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/USAE81064189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x738fba0f8b90cc99c6028b7b87e6699cc2e043e5385772b5bbc0db3fbcf2481e. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/USAE81064166.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1133e2189f7a85978b8c62c4eec7d4d6f0c21e2db44babe2300fc4e70d88bcfc. 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/USAE81064170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeabca7d1a4bad0008f895fe6af6c3a10b49234be50e8e1e88332a079a926dfdd. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/USAE81064175.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x823edced2629c312dd7ea4fb81630548010fc877540b5e67056783f970c9cdca. 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/USAE81064168.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66c6aaeb408f82dab493ef06664c66aa14181bb3b18b1b791383f7f94890633f. 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/USAE81064182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c49b7322ec39024a58c164c98941dec535cb139c9592a61064444d7d0d3ae0e. 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/USAE81064181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fb358edaa5cec493c8aa02f5d45a11442568a14bc456c7cfa25bd8115371c95. 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/USAE81064183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20c75b0a35c2e2a730b362a787eac3fed834dc6ad8e5f6e6498003f1b4b51dec. 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/USAE81064167.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79232df30eb1cc2f7fc3d149219e10013643e0b0120734d8787eb932393add7f. 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/USAE81064192.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a07ae7a08ba997d19ccab06e625c097f23a3d042c8e665ed52e0698f100cccb. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/PLI361544830.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9509a5441e6fd918f28489c08e7cb0bdd4b461ca6f7911d4ed2304894639702b. 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/USAE81064173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2314322a3b661558ec3187fa3bd59e99f105e4f43160b4d6be895e40ef11464. 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/PLX301800020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05e85a0c2966d38ff383d533ccb0cabf9018e6e38572c67b127949b53a255218. 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/USAE81064179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb339cadef171a17a9452c956eb0f7f7d736459ff69efdce6686b2c7babbb76fb. 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/USAE81064184.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefd2d406e142bf1915711699b2e79e4db4a3b13e259c64af23e0db271125e45d. 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/USAE81064186.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6348c14e43633caee506484012e80441571d32077afecae802b6fcf1d771b80f. 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/USAE81064187.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d5a9173e41ddaa4090b13ba88bebe7bb031cadef92251f6d207b5b96b5830cc. 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/USAE81064188.