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 0x7e352238e787d243859321f651213c2cbe327c11a4a862c16175defc1217a960. 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/a143405e-5e84-44e4-9acf-56f894d793eb.json and https://artists.proofprofile.net/proofs/artist/a143405e-5e84-44e4-9acf-56f894d793eb.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 0x61976c9be510d43b1000f0b1add2030291cbddb47135883d563b08b0787ff152. Chain 2 (Bitcoin): anchored in block 958491 (2026-07-18T04:29:42Z), 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/USA561189309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e02a17529ced1643974e6f0cabcb6cacc15a8d52bf1da06775907cde191cb80. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T19:42:06Z), 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/USA561189312.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53042ee62ac6339f67683a3070823ee071c6aab6f8217f40e66f5a2c5aaf7f91. 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/US3L30404910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3bf4ab0208cfae88923f85ae53be114c88a2154f17fe0b39f6709c2c71afb9e. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/US3L30404911.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb601add7bf6c4cf0677a8cd82d5601ad05281408557f4b305f67a476cc487978. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/US3L30404915.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb50211c856f9682e4f6b0217076136a4814dbe139889256d2099cad5becd04e1. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/US3L30404916.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43a14ed4916832869fbcda53d1faa302667d43bbf04016603168a53f63b9c503. 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/US3L30404917.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9f07741988686834e932da43f6783e30a1dba231b283af379373b067dc47e86. 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/US3L30404920.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25a52b0c4530563f841e709d86b3af5c463d654ee838e839865a0798285e48a6. 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/US3L30404921.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8ee4fe83e4aecad51263d4b44a58647ec691877d7af7a9964276dd0d48f053f. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/US3L30404924.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43ee26bd34d6cc70909844cc216101ea647c15915d0ec4379f03c806e6d1d92b. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/US3L30404926.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd65de08c22f1191ebcf00961a109b828f1b6ba30659147fd05c9e2214206134e. 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/US3L30405562.
White Girl (feat. U.S.D.A. & Young Jeezy)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8620c4d1a27ed911e3834ecf1cda7161a12d8a5ce70b3053c4e48405980881b8. 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/US3L30405563.
Go To War (feat. Crime Mob, Lil Scrappy & Pimp C)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x746032ff64cf6822361937a00f0c2ee8e13bbf8b2244aba5a69bccc9df62d0b7. 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/US3L30405567.
Takin' Pictures (feat. DJ Drama, Jeezy, Willie Da Kid, Jim Jones, Rick Ross, Young Buck & T.i.)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x744fbfb438536648b55ec0ec9dbf09fb2b32f3804bcd4f3ff0e23f8633b9ae53. 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/US3L30405569.
Square Bidnezz (feat. Tum Tum & Play N Skillz)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd00e4cc55c53a100f1e5bf8dc56b65fff8e5230e1d918f8770e434170a9f35e. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/US3L30405576.
And I Love You (feat. Rich Boy, Big Boi & Pastor Troy)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17454ef35580ae01fe89d08d165b57e011c2bd263d04d6098b9b5b2202f5a903. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/US3L30405578.
Itz Me Bitches (feat. Swizz Beatz, Lil Wayne & R Kelly) - Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b4fd0b6672dfdc8e84a5ed63d6ea1f76169e54157cb40f133818072903602e6. 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/US3L30405581.
Say It To My Face (feat. Young Buck, 8 Ball & MJG)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd96ece01bc026a4f344cf312b4879430453c726bd03ad8dd95c7ded1effd3b8. 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/US3L30405582.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6260566890fc6dca1430f3bacdbbcf469e6668c3fa3f90ec3a1519b914bbe16a. 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/US3L30405585.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28f2362224d1624eca4760e60eabf4e2c4a3aea1b744627afab5943f7b2a7c98. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/US3L30405586.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x025efbdfc0bd38adac5703e156007bec22fb212b7c83855fe412b5afae920c11. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/US3L30405589.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a3d7daea9046fa39012a4f85fcbba50b53f16194775f104dec58a2e35789406. 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/US3L30405591.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x016bd09501eaf2330ba1a9cb7f0f6fc3d358a2c8f11e1432c3a6fdfcda1da0d5. 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/US3L30404778.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0402730864ea6b277865192d3787b055b948998f1676c1c9c0047064b6ea3413. 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/US3L30404780.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9587b2c9786a03f171fad3e18a88fce500f148d2b7d2128c46cdf48913080514. 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/US3L30404781.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x066533948d1e4927e69cdd1e184822697901b17e39083f6687b15ba43fc20cce. 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/US3L30404785.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x113a4f80b5ed160953635dc46714af5064c183d46ee808dac8406dcc010ea0eb. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/US3L30404787.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6eec32c23963da7b6abe8d43c28fe02f95ef4cc93e5d99cc022696b7cb2d409b. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/QM6MZ1592553.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fd659be739bbe4b3d4e7b8e6ee789e7bdb0ca31777e6af643ede5b4de5b0ac0. 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/US3L30404799.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec2539387ff863281ce348d1ff7aae8dea3a435f59dde34b6ce07ceec06858be. 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/US3L30404801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51fce9476b5af138acd3b8079ea79913db445f3fc3ce7e00bb5cfb79853aa814. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/US3L30405959.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe501377bb3100fb55051752cb345c624b254fae046f0784fd50a5d76191717ca. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/US3L30405960.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdba462ff59d8c41c34c9138962d704f65e5d005e6164b5e4f053d521537dd85b. 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/US3L30405963.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6555312c11fc158b94081688d8c61707894fa33b5750f304732467b5a0f57d6. 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/US3L30405970.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x309730cfd5d721b9f3cb934bc19c73566697a0d55269f48edabc7a434c8bfb57. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/US3L30405974.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14c7c8c4661df379d8637cf1f2221b1b476ae3f850e0eb6b27fa8287d99c7273. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/US3L30405976.