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 0xadee7a337abfda57774fbbba89b570ae972ee7eed93eb34742b7c42e1237fd05. 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/67b601a6-014f-4aa4-a842-2522de777d01.json and https://artists.proofprofile.net/proofs/artist/67b601a6-014f-4aa4-a842-2522de777d01.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 0x1b9d9044e0356c511d11f797a41dd2882e0b0b95ee85618e3b90692d4a5ce02c. Chain 2 (Bitcoin): anchored in block 958876 (2026-07-20T12:15:48Z), 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/TR3760700039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca2bae876382f3d472838facb2bd47b6b5382a408e08231ec08f3f2943cf1343. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/TR3760700047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf8aef512296d2a6572b6289652cc8c995643dcdbc0be022439a3aef5de8350f. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/TR7911300083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cc6ddddff6d96bc6bbc314377a8f9fb4f4bd88dcafe46d49272ce69b7cd821b. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/TR8571001456.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08287db3445aab41f6e17887a293b979bf0c797c42951f35ddb3692a9688a0ba. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T20:41:17Z), 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/TR8571001457.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa783ffb85be580d75cd6a719b078aee23a603c0e2dd0e7b3fb629a0b5d7c953e. 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/TR8571001459.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a4efe1152ddb0c696b0f89c0c0a225c6460e9e2345f513da0f3be87b1d13a03. Chain 2 (Bitcoin): anchored in block 958656 (2026-07-19T04:04:08Z), 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/TR8571001462.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4ee1d19ee1ccedc41187e9a0fdf69ea244b4f639aeefa539adcdff0bcfb76f3. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/TR8571001463.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x451aa722ac93f7b813d2de20dff6082c07c6912beb361284abc3cd780a000bcb. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/TR0010500962.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaffa0ebd3a29a144043e30c0bdfc43bad17b2aa391173bdcc120105e2ac1a29d. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T02:52:29Z), 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/TR0010500963.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x702d3e252d244e7da6ff9064fbca85acf1534160c70b1bfa79c7c97dd436f7b2. 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/TR0010600057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd47e315ad5ea1690646febecd2e2693863236dc1553455931a450ae45e161cd7. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-17T00:22:53Z), 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/TR0010600059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84e30af859d7a9a96025945905ae4ad8633d1deb3cdfb754b61f1db346419c67. Chain 2 (Bitcoin): anchored in block 958668 (2026-07-19T05:16:11Z), 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/TR0010900496.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36acf8433dde0c6aabd934daf96e050fd175906720e9b5943a798ca60ea05d68. Chain 2 (Bitcoin): anchored in block 958752 (2026-07-19T18:51:36Z), 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/TR0010600063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc207ba04da7a596a35b6c1a9718b34b27f0a8687c141027c74bad3fcca365aaf. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/TR3760700033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x654fb732b62f5ed6d4e3d340976b45f71c18b8e43d07561c39ab5913003af471. Chain 2 (Bitcoin): anchored in block 958054 (2026-07-14T19:33:24Z), 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/TR3760700028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e52cd4a681a505dd07b5a44d04243deee54dbf059294157d5854305cd5c56a9. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T12:03:04Z), 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/TR3760700029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0662939c853539d6088c1d8655f180fa90d8a495de6d81659a52d6442192ba06. 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/TR3760600085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4853f5673cdf8e2ff5467b190fbb91a1cb696b11cedf5db1127d5e96ebf00d4. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-16T22:37:47Z), 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/TR3760700046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x911c13a348b7d77e10cf58a0b3b8c3a270a4c309e426509aec597b8358f2f840. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:23:55Z), 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/TR3760700032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05e6b46630d78d074503e0cc4da3cc242d41e6b7c55280cb3bbeca0fb2b1dd4c. 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/TR3760600011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9dde694848b7b5770d2ac908e47e58cf4eca8b9fe45475639de8bfb16a8dd586. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/TR3760600010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1c81a965a38b4682c6088b8217c9fbb734a34f08f52faff1b2a4f8d91c28dea. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T17:52:54Z), 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/TR3760600007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e7727f03c8cc56b9bb7187edd3306a6d875f5a65684c175bee74bb359bb95d9. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/TR3760700045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x610cba9713e0d27cd6ce1e2583dbcea9ba809382749fd7b664581c5e10510adc. 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/TR3760600114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4da9d39d343b9fb49402788c1da9f72b096479961328110440db3a3965f518d0. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/TR0011100143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c7f20ba73be217cc5b427e996a9945f1c972c1e1ad2ceab0d1a3a34ea284711. Chain 2 (Bitcoin): anchored in block 958384 (2026-07-17T11:15:16Z), 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/TR0011100147.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb34b3a4bfb25aa9bf5526379a2288bf7cbd22a422a1cb614219805e3d8a9b07. 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/TR3760600002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98476c2c061877a2e379b0409c10bd16f8023baf60c35602c5e3b301b820c633. Chain 2 (Bitcoin): anchored in block 958415 (2026-07-17T12:50:13Z), 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/TR3760600005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd04599e78e73463bcf2b63053bf2842e9480b5e1cb70884a8541bd16625049c. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/TR3760600006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd90ba7af1b3af2b8ec4aefb85410c57656d8aec7af1b46383fbb51b63ab04c04. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-17T00:56:38Z), 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/TR3760600008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59efbd8a943b218704b495853660ec4540c89ce605cefc8ef894c1067ab86906. Chain 2 (Bitcoin): anchored in block 958384 (2026-07-17T08:27:02Z), 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/TR3760600009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b6b614058c1df112fafe82cab886a34aab2b919275ec11cf9203fe8a435b095. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/TR4351300347.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f882b413504f1c529370e3afebfc890046a371b7b28a0132dd35b3cf2f83e55. Chain 2 (Bitcoin): anchored in block 958197 (2026-07-15T23:35:26Z), 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/TR4351300348.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05731530690da55c3da32ec0ec139c4b3cec047d08d0febb42857b9a495eba7c. Chain 2 (Bitcoin): anchored in block 958612 (2026-07-18T21:29:37Z), 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/TR4351300350.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43ce0c0cbe32a9b873d24f2a945be824c4f76a4f8724ae11bd4ca01b3f45efcc. Chain 2 (Bitcoin): anchored in block 958935 (2026-07-20T22:08:19Z), 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/TR4351300351.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1696a61aa78bf6eaed72aa6b97c318dcecd0cefde43d53508b8112297a5f4ad5. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/TR8571001453.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bdec1c90eb8a647570f56eadfaf62993ff95d4b65d86ced9f826d861e536e7f. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/TR8571001442.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0361dcb83961088d31d7b22c00a1ec2b507e05e6fd09fb4ce6a9a1b7b146a8a. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/TR8571001455.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a40d3a971f9aeb66243d0318aed685bf837ca6204d30c07733a8b28add05973. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/TR0010500930.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb78f0387a96c75e326cc269277d65b1a8927115f119b12428f3ca9d5b0f839a. Chain 2 (Bitcoin): anchored in block 958146 (2026-07-15T10:33:22Z), 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/TR0010500932.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c2e6792abd1d046f421b38cb6d1632108d474ca5c8032b54cb61f767ad64666. Chain 2 (Bitcoin): anchored in block 958202 (2026-07-15T23:49:39Z), 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/TR0010500933.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x680de1afd3f8ea63ae90e5e07a1da7fbd8b05853fa96cebc0d249e277d57438d. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/TR0010500939.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7237be3f76f54a34556d6005c0670df404b07cb399feaa43e05f075aa80a13c4. Chain 2 (Bitcoin): anchored in block 958142 (2026-07-15T12:38:03Z), 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/TR0010500941.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ead064f06355965c6e24271c59839c9a91afbd19ff5d6d58f9ba1173b89c8f7. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/TR0011700200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1411a2694600971ba805be84e257585533075c7bc6764aad2f6a1459288877a7. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/TR0011700201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51198cd290ad5ff6a1e2ae64018d7550cfdafa1e2f519388ce33617763ceb452. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T22:04:24Z), 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/TR0011700204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xded4769828744b1880f401235c969d28c5af2ac21f72c3638c5f05e94caefbca. Chain 2 (Bitcoin): anchored in block 958670 (2026-07-19T05:26:23Z), 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/TR0011700202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6ce566f176e472480fbf194f6f4f2881b1affe45e3b7f729b4b1d9cfc42759f. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/TR0011700206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe10dc57a318f2084f7ea9b6db44a122d131a7e09d915c7aede75dbb29c0d3dab. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/TR0011700207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc3a4d4e9ce96462ae2c4eb96f2dc7eccbfc50006ea7b877a12da54f7e49caf4. 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/TR0531304588.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85492037924d935cea335e3b9fa641bcaa8adcfc041142f040933a089e562a21. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/FR6V81707889.
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