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 0xf50347429932debe8682755e52668f6da5ba7544f0e3f39320d17465976bfd52. 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/3f7456b3-6210-4d44-9306-25fa2425d03b.json and https://artists.proofprofile.net/proofs/artist/3f7456b3-6210-4d44-9306-25fa2425d03b.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 0xf0b014358b1d29da541b25a5e7953caa649d8680db47877d40ea2652b719d108. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T02:49:15Z), 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/RSA141326421.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b42c065650edf5d04498719110e58b36c79129e0db52324ead8dd333e535de8. Chain 2 (Bitcoin): anchored in block 958838 (2026-07-20T07:01:21Z), 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/HRA042096314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x617481f60cd30b022cf7c2e6e5a11e111b55388c5d6fc812701e7c31f972eaf2. 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/HRA042096317.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62cb35f4571bc198d001644e8bbdc3a7bb21c3eea82377f0f376c76ac7b0ad91. 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/HRA042096361.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90d56cdf4a008c149742e3b02b945cc9c62b8d17a3918e3c430d3ae6d491d7c7. 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/RSA221810384.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x623e586a0897bd86dbcf7a76d1ecef4bb0951acbdd1d2b270ce3f28b918cc75a. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T19:01:16Z), 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/RSA291700451.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb9c8815adb9dd54c6db570637c4240ac96a9497fea335e831746e1ea0e0dd52. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T21:45:09Z), 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/RSA291700454.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6ff674fffea0b0306ba631197285cd7eae2a8585a6dfe3ec2fa9ece06f787f8. Chain 2 (Bitcoin): anchored in block 958736 (2026-07-19T15:44:04Z), 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/RSA291700456.
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9fa028b116f4944bfd65b01db8c506be6a10e790e1b5b7c4cb465806fda574a. 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/RSA221832182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d8f7ed388f719ffd15af88c26eac8fc60dc1741dd96900e6c7e675c46535901. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T09:47:57Z), 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/RSA221832188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6533e8674bd521cbb09e279ef726c082a2116031533c030cda5c9304da99cb1d. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/RSA221832190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48160282c883ebbe5cdd7242b2bdaea6b8a3707f20b11970c77587f661650ffe. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/RSA221830434.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07cd06b4fe52e1064109caacb640a0de11fc844e3b2baa5b2faf9d8c11fa76a5. 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/RSA221831555.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa75a7e9743f5e0ce26f13b9c0de9f307deec8b4ad74d74a5e986a8de4f5d1c3e. 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/RSA221831573.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1612b3d964e350f4441f1fa9b1ac87cb7fc375da5c1211a71bbd7ae8a16e0fae. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T14:11:11Z), 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/RSA221831576.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11ae22d3e1790d496bbd38af2ff91d7eb22cc9eb8de4db3afa834dbcbe1ae1e3. 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/RSA221831559.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0450f3487f49741f7833bbbbd1bc497e2cd27d080a12dee72964a116a138f6c. 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/RSA221831577.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84aa8ff4d9c3bb2bae96c00dea7a8a3164b7aa8ef2ce471ea569bd6aa33e7f09. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/RSA221831560.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86e2043a3e93a227bd47bbc44c8486c72c69a9b3ff0f3d7f3e1c66e028e939e8. Chain 2 (Bitcoin): anchored in block 956620 (2026-07-04T07:11:13Z), 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/RSA221831578.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2efa70e3a3c782d79959b040a163d18f5a9bc151096bf7a230460ef54a77b89b. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T09:47:57Z), 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/RSA221831563.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc16ebbc940b17092ba7dc48bb57098158270a3e2eb0bef012a17e80f7f34ce9. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T23:18:34Z), 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/RSA221831565.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe939878d00d9690ba9e09d7a23db7c08528265b2959f545da9444b8c851b5d0e. 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/RSA221831567.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed3ae37923f9904f3aa2ba105dd8046fbbecb8bd3a16ec314ea5398e4528155d. 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/RSA221831588.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x974eef7d5296ca3bc8e2b3bee5a8b88ec1f7fa200b327fd11100db9bc374a746. 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/RSA291700706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61628c36dd0bdd4b76a90236892463a3db89fdcc795c69259742cdacdf7d3cea. 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/RSA291902363.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7c383ee471e1a35df67eb254323419e19835b5079dd7867f24e2e020c04544e. 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/RSA291700703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x849f2632d6858cd58061958aae45cfa8abd828210f28f68613b05d0175f53f0d. 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/RSA291902365.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bd156ad4ee9bd0f06c3820ed0bb88f18dcd08626d14054ab0f4a6a53f348d1c. 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/RSA291902366.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe8710b9fced900b178e658026760f4b39694bfcac2933897bdfd9908ec826e9. 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/AT2DY2300032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcc29ae9da70f46bafed947a0165a0ae6ce160dc9fb3f77fb6316af5abd4d9d2. 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/AT2DY2300037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03d982beca9cda41eaf041ae5dd77b712ac3e42f53d0921b8e4bb9880977ad04. 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/AT2DY2300036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f8e513bc50934c7bc24037d0ace27d9b58b9d4df644f11bd7716f73ff9c6bdc. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/AT2DY2300033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a4547b28615e39522142342cddf3ffa974786c925c1651050ab0339de170900. 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/AT2DY2300034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00e726dcc5293cde3d642b1ac4ab9f966a6ee506fbb9b4199ab90b7a0c8d6069. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/AT2DY2300035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x465b35c781880ec6032926ff17d074806874f5b75fe422f47695fbbc074c2696. 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/AT2DY2300038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02030a6f49b8e90709711a77a412de25b1667ac4fe41b0780bb255568e147288. 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/AT2DY2300039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f8e513bc50934c7bc24037d0ace27d9b58b9d4df644f11bd7716f73ff9c6bdc. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/AT2DY2300033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02030a6f49b8e90709711a77a412de25b1667ac4fe41b0780bb255568e147288. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/AT2DY2300039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8399b47b5fc758ab1cb3b1dc62b63b8714f8b21b71b624a6165e51c18f221c91. Chain 2 (Bitcoin): anchored in block 958134 (2026-07-15T11:34:05Z), 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/AT2DY2300023.
Nepogrešivo feat. (DEVITO x DJ Hamida) - Sped Up
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe76123085987b0d1e39f4227ceb4dadda990f9a954a57c5fb43829fa13dba8c3. Chain 2 (Bitcoin): anchored in block 956748 (2026-07-05T05:55:59Z), 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/AT2DY2300044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfb4b05847065fa0502d875efa8b4e1820d61660909aa7f25ed384c5d4ad59d5. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/AT2DY2300021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x345537efb161c373773b798cab6cd22a5b3610326d56e6a21cc1c56af3a12618. Chain 2 (Bitcoin): anchored in block 958908 (2026-07-20T19:05:33Z), 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/AT2DY2400106.