Tucker Russell Beathard ( ;Brown, Daniel. "49ers Analysis: How rookie C.J. Beathard showed promise of better days ahead," The Mercury News (San Jose, CA), Sunday, August 20, 2017. Retrieved November 2
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 0x612f3011c85b891ff9f8c23bc7531a3f1a0af0ddd0b944a5a86e946cb1184130. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e7946928-befa-4892-acae-5c13190a82d7.json and https://artists.proofprofile.net/proofs/artist/e7946928-befa-4892-acae-5c13190a82d7.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 0xf019b8a0b491440c1f1d1d0d27d149f5fee1e3082823905825774d19d8a0a6a6. 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/USWB11803294.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34abcffcbb694a726b247032946d158493883dbaa16a91675c6cc3715241e088. 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/USWB11803297.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x615f3b3277da04fcb2c18f8a272fd16b6108673fb6adcb396205e503a2eaa391. 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/USWB11803299.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36ab84abe26bc07312215da8ff914c6865a63452ccc41999fcea238c687408f2. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/USWB12000784.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x151f41663cc7921c193b021783986f8c59992df7be4c7055739d57e0dd81e7fc. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T09:45:25Z), 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/USWB12000786.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd328d6d6810dffb1ef95fe32feeb9263c1a7d327a1758a30e5ca871bceac7a8. 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/USWB12000792.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d676d9730b5cfb7a4177a37650c2a9f2a20cafb222ec1173d1c67306c3125bb. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/USWB12000787.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c2c22e63e8b6810fbc5ef8ed0801745cd55df784d1bb2e34631660cd1796712. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-15T22:40:25Z), 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/USWB12000788.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa15c68fe50672b53debb9b2d7e93e40317f795866ee2a569964449ecfbb4f41b. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/USWB11901753.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbca95320b9f86e06b19bac06e5c2f451d4b17d30bcb3e7f53c88750fddacacbc. Chain 2 (Bitcoin): anchored in block 958673 (2026-07-19T05:38:28Z), 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/USWB12004579.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33c80f0f6b69fb1f07748087719f770a90c97e55437f61a7ff3dbfde89732134. Chain 2 (Bitcoin): anchored in block 958067 (2026-07-14T21:26:15Z), 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/USWB12208043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b5b2c4bb6d37ee085dd08c50e00c2b2db1952838eb57f1c2f2dde9d614fdf29. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/USWB11901194.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce805d554522255de4d90ee14da32b64c16f5642530e86e94cb0393c70c0306b. 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/USWB12105014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b5b2c4bb6d37ee085dd08c50e00c2b2db1952838eb57f1c2f2dde9d614fdf29. 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/USWB11901194.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x637937f4bfc0798755f2e3bed9dff04f0ec1c5971dcde53fa16e31e5d82f967d. Chain 2 (Bitcoin): anchored in block 960258 (2026-07-30T12:45:34Z), 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/USWB11900578.
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