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 0xa884889c18709b71204b2f6cf058dc7e2fcc4305df5579e14cb0d04bafc02bad. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8f704219-1741-4a65-a618-f9f9efa89fed.json and https://artists.proofprofile.net/proofs/artist/8f704219-1741-4a65-a618-f9f9efa89fed.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 0x32c6c007c1e7bdf8bc5bad79b8fa6f0c5d73e753143dff855b7ceed772f3b73f. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/QZNJV2033299.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9eab60606fe3b91811580ab3d2e3b12c79d932b1938ed14a44b6668d1f9bd504. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/QZNJW2024464.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c4c0279a10e6d7057e82214fb727fdd0eaf997ad05bab0bafef673b8ad3fa93. Chain 2 (Bitcoin): anchored in block 958322 (2026-07-16T23:28:46Z), 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/QZNWZ2088914.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9a956978b437cc8985399fb43b60bcdc4e047dc35a92d8e51766c75864fe8f6. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/QZFYX2154405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x457669953e018f3d4c3cf5bf6ab25f0ef1cdd5512d15c0462af9e074265cdcdf. 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/QZFZ22147596.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x047fdfe8217b96047902f112c1939e3a52b6b6f380629b1d33f392a4a8228d80. 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/QZFZ42119770.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b2f7f3ceeff3eb53954b8855e0089fd5abd985e4b7e68b2be9c1806c45721c2. Chain 2 (Bitcoin): anchored in block 958980 (2026-07-21T07:04:12Z), 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/QZFZ42169789.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfb1c7ce02f513a6d020f87645088a10f58328036a55c24977ffc528324fd7c8. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/QZFZ72102468.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64b74cde14db75672f7bfbd5ad0354844daf3b995ce6f2aeebd9f1dc75d07a69. Chain 2 (Bitcoin): anchored in block 958430 (2026-07-17T15:33:28Z), 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/QZDA42166447.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b9adcaf1da81e7f206988def44d79b4efa370f06980babc4c54800593d32641. Chain 2 (Bitcoin): anchored in block 958980 (2026-07-21T07:04:12Z), 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/QZES82181137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3ec90f1c33785b3aea375316873a7e95e529ce7d63b43d2b2eb494a965dd0c4. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/QZES92195122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41c919c11a18b325d71f80c09180b7defdb2e5278eae1b031815c15b2daf8652. Chain 2 (Bitcoin): anchored in block 958140 (2026-07-15T12:41:19Z), 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/QZHN42180669.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47741bb636361f7e8567a4d45ac2608d575e3da9a26d08bcb89f74cfdd9d0e09. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/QZHNA2147555.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ba83a3e0868c487bfd3c7aa547a5fe44bd21d40df170b1fe4d9a41fe736d4b5. 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/QZHNB2175298.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5248efef12ad7a7bfa52661411c1a7380d03d93ca4672e6d9825d85fa3bb1126. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/QZK6Q2132329.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x255f4b52d8ef8d6492911514de192f158609a49ca8e772a9d3c76a94ac246a3d. Chain 2 (Bitcoin): anchored in block 958653 (2026-07-19T03:54:23Z), 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/QZK6Q2139881.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c86f9d83c39a998c855fb7cdf8fe1b16c43487255d219b9fe3f6a36fe2ecca3. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/QZMER2105128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56c8750f0c3b8ec1bc5558008e3932eeae9d802853d304e1b1c641c9f6ad659b. 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/QZNWT2119785.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x627b31b658e3429d5d20a81f1abda2c3f9c103c5086dc41b51ada1f19e1a276e. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T05:29:20Z), 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/QZNWV2140293.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc2ddd43c78bb3a0072528092b35f2d9f6a6994d1952dc54f4c53ec46954aca7. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T10:59:53Z), 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/QZNWW2178733.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d73f15d81f69c4d353cc9e6b925b8793e628e53da3ebb3847309bd207557047. Chain 2 (Bitcoin): anchored in block 958430 (2026-07-17T15:33:28Z), 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/QZPLR2120634.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4baa3ce69bd896d09abb17e28063662da9a5c47a7f12c2572427714df89d50a0. 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/QZRP42141481.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x682591ffe57d2fc1e855ed146c06e00c749f49d1589299da97a66f26bcd5b190. 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/QZRP52133612.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c2d6038c3e157cabfb6e41636d5e98f871d3a779ad2ae5d4258876850f9fbaf. Chain 2 (Bitcoin): anchored in block 957919 (2026-07-13T23:58:45Z), 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/QZTAS2121586.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc405753c4702b3f802d97eeffecc5761dd4d9f364028af879883d2360f7caae6. 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/QZTAS2198754.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd09fbb5bd42826b8f6783a06ec779d91503169e6caa1fe50e5c82dd01c0824af. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/QZTAT2192120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60513252827dcdccb6730531058b7338a7490d01e73e62ea429aaaa872661026. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T20:10:41Z), 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/QZTAU2171799.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13c9713d9558805433d3719d2417c8f5c2aff51fdd23053da9945a14fab69aa4. 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/QZFYY2279320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26a3a0d6be696928d263b0b0e9502eaeda1e51e3811e99c79ccd2988183bef3c. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/QZFZ22238623.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e6efa4454f960bb493f9fd531bb1b906192fd4e4cccc2ed730a6779f68585f4. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QZFZ62282999.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4d21a546bc384c067f7f1c76486e64d6d8e43d185f3921b22f0c75ab5624df8. Chain 2 (Bitcoin): anchored in block 958959 (2026-07-21T03:51:22Z), 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/QZDA42236908.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf9930302e99ccbeb43cb77bf44b186ab9f619e34818b9ab48ec2a5b167a08ce. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/QZDA72232266.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79b95277b10bde7b25cdb628ea22a511e85f31d98c9132747544758db0c284a2. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/BCIW92285272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0545f5fe36364a40d168ed7664e8004020b1a42ec634fcf72af9d661bea19be. 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/BCIW92285273.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b2516ea1267141afe1e525e269a215318ee7168a8ff6c03ce322fa3739ebc70. Chain 2 (Bitcoin): anchored in block 958880 (2026-07-20T15:20:36Z), 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/BCIW92285277.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x850de8e7bc83e8943cca0f3eaadd9479522c85c9e31ce0efbe0d9b4c93349d71. Chain 2 (Bitcoin): anchored in block 958322 (2026-07-16T23:17:59Z), 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/BCIW92285278.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd54874624f97c4e9ed18f538a369998bc6aacb721d2fa6c2045e1f3afd55e52a. 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/BCIW92285279.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c3dfea1791ae40539de884a9b636a01f7b0561eff6d5e4d0cb978fe2f52853f. Chain 2 (Bitcoin): anchored in block 957892 (2026-07-13T18:21:16Z), 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/BKWAR2200003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8470c9d3f7fb5f086c16124eed2029f018c40fbed89027cc6b4a75af538ef635. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/BKWAR2200005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e577b852d0a76b1669f90c4917192dddab189973d4599eb38a47d2571382854. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/BKWAR2200006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a3e8f51d929ded558b55ef74a99f780402b91f9e64095f3f3dbdb545fdcd038. 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/BKWAR2200008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b6cbffdbc308db2bbe36cdceca2baa778968ccf41ef991dc6247cd4e803a5b3. 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/BKWAR2200009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfe86675c1c37bddfbb85afaad3e0d1904b014127341c24defd74bf2b6e8580d. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/BKWAR2200012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8c78b5bcc491c0dd299d707f19cc1af6504133657b01f323a2971163d606afe. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/BKWAR2300002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b4f267907d19a674be27b3ed5ffebf60f13fc4570bcb7df0ce36c5eb6d5c44d. Chain 2 (Bitcoin): anchored in block 958366 (2026-07-17T04:59:09Z), 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/BKWAR2300004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d7b61d5639a4bc2a89a936e870fc08b6f46d946ad3c22d912f3b307b6ff0b05. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/BKWAR2300009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e485760549b36098d37b34f14e4fb6c2d2a2d0466056bddba109dba470ed390. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/BKWAR2300010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90ea7ca746a9ecce02804c0085916a0fe8666c7d039230b8b7ca87b9ad6fc541. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/BKWAR2300011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d3c7fa0e538bdec131aa2acc878c4f096a9c28920b2e0743dd3791b935a2ca5. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/BKWAR2300015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x267e2e2c8495cd0b61a8aaca85fd6a8797bf41766d8b287a5fb9e04189f5e4e6. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/BKWAR2300019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac7ab2ea41da25909d596ff344e4407c4c4ffd7c8300a9e793c392a903ef6fd1. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T16:43:25Z), 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/BKWAR2300020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcc9c6a685e8b55202430cd0d21be0179dd93f928222901bf35c57e9c17516e3. 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/BKWAR2300022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22fc891e4589c98906989bb4bb306883115e04106999b257eafcc3b58a43bd41. Chain 2 (Bitcoin): anchored in block 958736 (2026-07-19T15:52:28Z), 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/BKWAR2300023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b2a07872481558f77fb3077526a997c85b6d41c8d3221ce558bc6b8436872bb. 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/BKWAR2300024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58cc965d8b9399bbe0aba2a2227dfad8e8d4ce09d7f7a4cb84f99366c02a5ff1. 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/BKWAR2300025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7453c4d0641e64c85d6ba711ff97fc562b5f5bf7e364ebe259f3f4c16ab5a4ea. 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/BKWAR2300026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ddc2378bd5da108b5cefdebe67a7d733667c758d8e0c9e3f6bec53694b54364. Chain 2 (Bitcoin): anchored in block 958134 (2026-07-15T11:40:05Z), 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/BKWAR2300027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf31636cba8b9ffb7a23ba00ba98ec828e8afe0830fd40fd116e8385ed177d7d. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T20:38:50Z), 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/BKWAR2300028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07132dc545df6327d2120e0c8b242dda5e42aed04bc551877b47e514a4c6b008. 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/BKWAR2300029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bb38b500d217a4fba7063cee788de85cbe8da57591fdef24b90085b2502f356. Chain 2 (Bitcoin): anchored in block 958322 (2026-07-16T23:22:28Z), 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/BKWAR2300034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cb32639350334faff97c84a38c19f4019f94d469adfbe4d82523df01216a36e. 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/BKWAR2300035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7031422187b715949edb12d4d8e8ce9cad143d3d5c07dc0166e9a1af6e82f47d. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/BKWAR2300036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeed0fd9cfd4f1df263018c4f8c61643d625b2326332f2372fddd55e7a81cc577. 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/BKWAR2300037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4bf587a6b5d463526089f2914bd2231bb6ef98f42ddc84fd32ddc73192eea5a. 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/BKWAR2300038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3843ea480a14ee09f9a05718ca521a658e5c3f83decc65cc8a3e212c7d4f0f7a. Chain 2 (Bitcoin): anchored in block 957846 (2026-07-13T10:25:43Z), 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/BKWAR2300039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd67c5ec4981971372ce50d54cc37a6c533b0fedc3c1605357e61fc95da32db3d. 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/BKWAR2400002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6958ab415f147b419a6af84e97f5ff5692b801ef6656e95b0c566d9d504763b. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/BKWAR2400003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x253d00b6630eecf94e3a213d958eac7777a641b6fbcb476c8fb9dcb5b5a8e681. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:44:31Z), 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/BKWAR2400004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f78b4cb50c4c4b6a1ff22a78c2dcb18ceb8756b7a4ca78cbe8de4e05f11122a. Chain 2 (Bitcoin): anchored in block 958572 (2026-07-18T15:47:37Z), 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/BKWAR2400006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf780db392fa35727b8d677936d4686c6059cbccff7b2e6d166170f7290c3728. Chain 2 (Bitcoin): anchored in block 958140 (2026-07-15T13:00:21Z), 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/BKWAR2400007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdb03cc666f60df6534d92ff9a1fd863daad9b2cea92e8ecb7b5eace87e7d441. 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/BKWAR2400008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c1f997ed4ec22b1bcd862a1a27c8ac5a45b777dc64d2a4a7cf32f54c42d0566. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/BKWAR2400011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a6466a83a349572cfb55dc4f1cae067f9be384c8208fff6d7321fd5fb359192. Chain 2 (Bitcoin): anchored in block 958430 (2026-07-17T15:33:28Z), 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/BKWAR2400012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fe385afab9f962c548b3ded5ea1489fa89abe0d2d4e320c624a8fcd3e17b30e. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T18:01:47Z), 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/BKWAR2400014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cc06119c69c0d255603fe7e747edce5a7d12645c3fcaa27def0588839a78924. Chain 2 (Bitcoin): anchored in block 959024 (2026-07-21T17:13:55Z), 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/BKWAR2400015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cb1adac72a4cc0360e488422550ff176dc438bc8b225d9c71f686ac994891ae. 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/BKWAR2400018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51aa9e11d20cc470034adef2cd199e2a239df6dd4390829b86ccfb4d0685e642. 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/BKWAR2400019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15a78879a6445fe74d4e8260bc8bec5577a9efa4d957c74d3789665b1293394f. Chain 2 (Bitcoin): anchored in block 956482 (2026-07-03T10:33:57Z), 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/BKWAR2400020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11cf6567352199ae7f2b3de0fbf719cc9ed1e749f3e211098d4af0c1ddef4c86. Chain 2 (Bitcoin): anchored in block 958917 (2026-07-20T17:53:56Z), 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/BKWAR2400023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b9f86614fd7c5268581fcc160f50a0c8a5c0dcee2e5789e14389c4c67da6ca1. 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/BKWAR2400022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfad0aa64bf10a58d1ec0e07fe93b28a69671c6bd6ff9e50bb0b1de770935b9e. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/BKWAR2400025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb25ba9bfb46c75143bc38a6d710e8e5867b512c86ff7ab7e08eede508e71d70. 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/BKWAR2400029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42f856886940f230a5b250776cd37c775175011f2158380529182ff2c695ab23. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/BKWAR2500031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49e343d14d1a43801edb8b7a8b3de4fa00c542d733dc3bfa2199cbefe3a3ea23. 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/BKWAR2500033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00cbeadd632276baa05ea4103bd83ae16122664e8a074c91ef637952dc64d1bb. 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/QZHNA2150729.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe88e354f38eaa072eea6e3277748974ecd9a78fb09957b1425913a81fa7f38b7. Chain 2 (Bitcoin): anchored in block 960383 (2026-07-31T09:50:37Z), 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/QZHZ52270690.
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