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 0xa4dae1169c4f49408faa317f7cdf99eec39289f14af324ac1a0e76fadd202427. 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/3a7fa866-5839-4289-9c48-1ed5f554a5cb.json and https://artists.proofprofile.net/proofs/artist/3a7fa866-5839-4289-9c48-1ed5f554a5cb.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 0x400baaaf1db893dd8d08d8fb7093da6002bbabf50cf2bea62a8604fe59ea7913. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-15T23:24:33Z), 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/USWXS1600033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9583efe54cc93bb4072adbc7ff7ec9cd2f3475dcddce3ebe7e77d22219cb225f. Chain 2 (Bitcoin): anchored in block 958517 (2026-07-18T07:54:29Z), 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/QMF921650049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecb7c22e471f410b3782a3692b63ae0389b29e55adc1f875deffc6e55ad47e29. 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/USUM72103255.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34b32d95489e3e84aa3d7ddb3f0aa06ab5d7a9f2444cc2bd4277fab453446578. 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/USUM72103265.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94c190332b2479760d6c48c2dcdaf7f1145022197b464b8435b982a2b61821a7. 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/USUM72103266.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xada9e8be3e80a4f34b976acd6ffb76a3df0e2c78cc55582be1742fce5611626f. Chain 2 (Bitcoin): anchored in block 959031 (2026-07-21T16:15:11Z), 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/USUM72103267.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef1cb7fd10677b0d1bfd7bcc2385367e1033abd830e9610d7fe00c1b6e48ff3f. 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/USUM72103257.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9f607cbf7dddc9ce82331ed586702adc97fbcb43ecdff3946169cd0f2b66916. Chain 2 (Bitcoin): anchored in block 958885 (2026-07-20T13:01:04Z), 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/USUM72103268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb95336c23ebc8037a79bcd80a7692e9d2e616c8735332aa9ee5d705324c2a827. 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/USUM72103258.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb597005e81764a7e33788dddff8118ec02f627332894b67b89227b63e0898c47. 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/USUM72103269.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ec5983d332b99eb23d9aa27a18876422f77955fbd50d5a062b81433bbfec31c. 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/USUM72103262.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7a0696683f4ce358d8355cdf898910f259353f7ec4ffc9b62c8af966594650d. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/USUM72103261.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2ff92f9b7b89afd6771cde3bd61b61dc32d0f9c264f6dd4f50c4ed5ee4f198c. 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/USUM72103260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b6f34f7fc4385075a6742c00272f03306b89ca60991e171654dccda05259905. 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/USUM72209690.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4d74752b5149d368447d06d0d0457ac2d2be34bf8ed4a9ab7759fb0fcc27ca9. 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/USUM72307358.
I Love It Here (Live At Shoreline City Church, Dallas, TX, 3/9/23)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3c451021a3853973cec734ac36ed6a88e15ed85e5bef23fdf708c1f085f6895. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-15T21:24:46Z), 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/USUM72307365.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17d804a33461e7230c43d9333a0a026a43f858cd58c30298e6ad8beaec4fd5a7. Chain 2 (Bitcoin): anchored in block 958706 (2026-07-19T08:50:34Z), 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/USUM72307359.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb63f13c001a9f18ecee960999f6c457e268c46c9ef9df816548f7cd8e48df635. Chain 2 (Bitcoin): anchored in block 956711 (2026-07-04T22:48:52Z), 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/USUM72307363.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b6e0b2a71cccaefa05810d4bc81e5e998b3181051bddf7adfdec3324a849cdf. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/USUM72318408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42c489f5d747ae782bc20234c1d54620c4748040d065e7f9da8a8bc47327b4de. 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/USUM72307366.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a7a2836ca74e114b1e24030ea208c884d36e4a188fd4ea940d9270297e17941. 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/USUM72307368.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae1ef81b5c23960e6c0c4c8d1eb8f541ad230b1a2ad3750315ca82703298c2d1. Chain 2 (Bitcoin): anchored in block 958263 (2026-07-16T08:19:47Z), 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/USUM72307361.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32ca64ec2bea42e3fd54996d0520f2d873a369981a97810ae4e34099a7a561a9. 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/USUM72307364.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02825e1c03049901de91beb96de321674f70a09da8881c06563f646a878a39d9. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/USUM72307360.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ab76562f1c7cc7a515fe6ff0ebd0e66b4d2741777d04e39acaab26dcbc467ac. 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/USUM72318407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb383f29402a7025614874b22984d9f34a07168eff72d3c00e327156eebf7bd55. 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/USUM72318403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0facc5ea622c8ab1e87f70ab17f5074a03a8bee14e52459587cfebd2787b0928. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/USUM72307362.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdf7eae2cacbd18ce10b3a3ba1e71deb642851da8bbddb7d14d0eb19849b243d. 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/USUM72307367.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cfa00be45404a3c8480538aca64d07dbfdd5db9b874f97965f7ca0fbf0373d6. 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/USUM72318405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41b3baf67b84191b65c4e1dd66bfba620cd89a0384fa04078c5482f0b626ab55. Chain 2 (Bitcoin): anchored in block 956711 (2026-07-04T22:48:52Z), 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/USUM72318404.
Potter (feat. Anna Golden & Tamela Mann)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ccd0e1c7acb1e9025abe39196e77b00c2a3d7ccc8a2d34bb5d2ff84914c410b. 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/QMDA62204603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1a1d0b56bb0b1df8c6a83e97d34b896e0d2ea3d24ddfe977cfc8948e536cb94. 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/USUM72123092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2ff92f9b7b89afd6771cde3bd61b61dc32d0f9c264f6dd4f50c4ed5ee4f198c. 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/USUM72103260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3817ec16930c5b76433f8d2ee54fad667956d4ea103f88100f9cf483bde06c9. 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/USUM71706002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3817ec16930c5b76433f8d2ee54fad667956d4ea103f88100f9cf483bde06c9. 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/USUM71706002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1a1d0b56bb0b1df8c6a83e97d34b896e0d2ea3d24ddfe977cfc8948e536cb94. 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/USUM72123092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94f9674f242606bf873b09dc82e3abc016fef3014b0537003b61a434a79dc26b. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/USUM72308281.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a769c6a6ed6b90bd9fc5b5c07c17f7b194ebd3e038dfdb1d7f9d87a4f3c2a96. 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/USUM72308279.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf51d86885d535fb1c1a54c7ca53e3d284463daad7c4467b2c19370a0b18f977. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/USUM72403333.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3817ec16930c5b76433f8d2ee54fad667956d4ea103f88100f9cf483bde06c9. 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/USUM71706002.