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 0xb2bfef9bca6fae9ad48751c1157e137a4abc0b47b8f7b751fc099ffd46932056. 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/946bc519-8b4f-41a7-9d2f-c3b8158ae9b7.json and https://artists.proofprofile.net/proofs/artist/946bc519-8b4f-41a7-9d2f-c3b8158ae9b7.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Take Your Chance / Celebration (Remixes)
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 0x43acc0f769bc8028da7ad2dfb691186dcf93c6b57f674c1948fb6957b81474f8. 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/USCRB0101270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52825d44b7d7cff7946d32df05496a7802b8730d74dd8862ba6b03d2543603bb. 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/DEA370601581.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f0dd77d98d3c32d1f27ca740b7f191b1194ceedebec70ef52039ba84a4ba9f8. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T11:00:13Z), 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/DEA370601583.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c2aec6eb8e637ecef585cf3bcd3c1d8a6ad97840f607f4917f2c7047df35261. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/DEA370601588.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c9291e50bd10bcc7fb834e9fecf47f0f8b4ca10d91e03a76890f4561c06350b. 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/DEA370601589.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29bb3ee5121731285c9dbfbb3487ff6a88fdb59e7f31f93dc46e58ebe9b4878e. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T22:24:04Z), 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/DEA370601591.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x184e8bd14988b287af7c17c331a3918426a83fbd121dce9d8c16172e6cdd3dad. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-16T02:15:33Z), 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/DEA370601592.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61575bd739f31c84f3f84eccbedc889d8ad44af570d0e9a4bbc4b7ad23b9c315. 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/DEBU71300003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x466ce8fdb417edf6c1047211fbbf99b07d8e45f78a5b03b8e0ad82231c8b367c. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T21:27:05Z), 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/DEN061600644.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ad009f81f39421159618f02dc276e6275f71ae68f9a5bf9a88c64e961fc9a5e. 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/DEN061600646.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe915394eb0ce195e78cd4b0981251ee1d6dab6a61c77fd6ce921e820e67f4ff4. 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/DEN061600647.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x466ce8fdb417edf6c1047211fbbf99b07d8e45f78a5b03b8e0ad82231c8b367c. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T20:34:10Z), 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/DEN061600644.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79f610e77783fc07af79df72d7c49577b37b0e3dffa5efb396d7ddbe54c0231b. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T12:06:48Z), 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/DEN061600645.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ad009f81f39421159618f02dc276e6275f71ae68f9a5bf9a88c64e961fc9a5e. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/DEN061600646.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe915394eb0ce195e78cd4b0981251ee1d6dab6a61c77fd6ce921e820e67f4ff4. Chain 2 (Bitcoin): anchored in block 957772 (2026-07-12T23:31:17Z), 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/DEN061600647.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8da71162f5879d8116cdba0b9ec526a8f2fccc458d2127c62b983e4bed97eb74. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/DEN061600632.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3746860019632c0ee7a1d913040369e4e5ec4808dfd9046b287a64f99437385d. 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/DEN061600633.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56c02c288fd805136c0f7d407bec700de425bdd61ebe005cbd3a10a5bf0d7e8f. 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/DEN061600634.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28de5e180e393646288adb500c381c2252be5c39a4e5a0a30947c04a52dd4539. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T07:50:58Z), 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/DEN061600715.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaac43dcc19f6091bc8b359295861d8a6ce4c9ba4e4bd43ababf6828509bdbda7. 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/DEN061600713.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3d53e433a9bc6d48daeab0a50af2b456cc77a73007dc953acdc9e68cac5eaf8. Chain 2 (Bitcoin): anchored in block 958091 (2026-07-15T03:17:03Z), 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/DEN061600642.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79f610e77783fc07af79df72d7c49577b37b0e3dffa5efb396d7ddbe54c0231b. Chain 2 (Bitcoin): anchored in block 958091 (2026-07-15T03:17:03Z), 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/DEN061600645.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe915394eb0ce195e78cd4b0981251ee1d6dab6a61c77fd6ce921e820e67f4ff4. 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/DEN061600647.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3d53e433a9bc6d48daeab0a50af2b456cc77a73007dc953acdc9e68cac5eaf8. Chain 2 (Bitcoin): anchored in block 958838 (2026-07-20T09:24:15Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEN061600642.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x466ce8fdb417edf6c1047211fbbf99b07d8e45f78a5b03b8e0ad82231c8b367c. 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/DEN061600644.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ad009f81f39421159618f02dc276e6275f71ae68f9a5bf9a88c64e961fc9a5e. 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/DEN061600646.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43acc0f769bc8028da7ad2dfb691186dcf93c6b57f674c1948fb6957b81474f8. 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/USCRB0101270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff5ed704060bc505051a3abea3b05188a679daaac09c1c873ccf16c18eb697b1. 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/USCRB0101275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67d6bd9348b02282af6782f2407b1665058b94c5ada051f24a2f586d5c23be08. Chain 2 (Bitcoin): anchored in block 958700 (2026-07-19T08:09:50Z), 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/ES03A2100021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdeb7520dd2115e3de0de2e245ed960a6c458ba690313ce18e42791d99ac08de2. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/ES03A2300119.