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 0x6e710c3a15c8f17b23d0b04251bc3da667d3adfba13ad80bac153714e189daff. 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/53dba4c8-2d3b-4d84-9ce0-de7a6e9bcf60.json and https://artists.proofprofile.net/proofs/artist/53dba4c8-2d3b-4d84-9ce0-de7a6e9bcf60.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 0xbca8eae6af24d053329580317a64dc9f5cb6a00b1a89050ff319ee36d6519794. 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/NLC201300091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3251eeec324bb09960edea2d5864b40defb90ce22ebd9f027e1fba8ade2331bf. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/NLC201300090.
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 0xa75545b5b84b2e0f06cf314dc610907e4764f3170d66906d8e857968f2b533a2. 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/NLC201300089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x351f031367894ce2e8f391e64104a1748b085337a5284829ae2f40cde4445a66. Chain 2 (Bitcoin): anchored in block 956745 (2026-07-05T05:33:35Z), 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/NLC201400006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x348a76bf7bc78b59ce549b03c833543ecbb5db80650297ee9a82a7594f9dfd4e. 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/NLC201400008.
Under Our Surface (Outlands Open Air Anthem 2014)
Under Our Surface (Outlands Open Air Anthem 2014) - Original Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05ec428498f81ff2c4948826fa180571e2a26516abfd94de6e6c9c2ea6f424c8. Chain 2 (Bitcoin): anchored in block 958714 (2026-07-19T09:51:44Z), 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/NLC201400063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa782f4b4db4ae9d3e03b1f148490f395a3eeaa570c4adb4b7ca7195b56c7556. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T01:53:35Z), 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/NLC201400173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93c6b0de9dcccd0ad00d52f16e55597abe56b40ca33a9ed541a4393f6409ceea. 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/NLC201500004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae3363c04e32d1992ba8387f4aa34ae4da1570c782c8d5a09da0dc7e059baac1. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLC201500003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84577209bb08142b3f603cae86a99e6a0a3323a1fa6503523cab51b2e2891b78. Chain 2 (Bitcoin): anchored in block 958122 (2026-07-15T10:34:07Z), 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/NLC201500100.
The Universe of Hidden Dreams (Destress 2016 Anthem)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59af168a928df317b6bbfe6cf5ad57e509d9a65a6648d5b4498d5ea842bc7519. 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/NLC201600034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e3f6ed551e52ea7500815c4ebb1d4a4cac2224f7c12be5b24295f8d8312201b. Chain 2 (Bitcoin): anchored in block 958362 (2026-07-17T04:32:48Z), 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/NLE801600782.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6ac3a385a5a229adcbeae89590117060ebefe0d9dad598155dea72f56f5de05. 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/NLE801700016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ca9d3b6cc331da7efd65130db5b49c6e5f49dd12133f29bf0bf211fa39813d1. 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/NLE801700249.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65b80403c42323a76c415e0b26277018b5c2600b10e7b5a9bdbac71201c453d3. 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/NLE801700504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x353b7565e77188480d45809cd39bf0b0f12574e29c28a177ab1bb19a94294a88. Chain 2 (Bitcoin): anchored in block 959061 (2026-07-21T21:34:21Z), 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/NLE801700506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0cf204203186a97760c07572f97c453596de277cd787180d959e1af4abc04ea. Chain 2 (Bitcoin): anchored in block 958711 (2026-07-19T09:26:32Z), 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/NLE801900274.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76dce8ec6e636a1682cc6a70baca9a8733e49ce0dc0b956ede8c01c7c48bde49. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-19T22:55:52Z), 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/NLE801900526.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c51e5b1315345e03bf3d3a113d5d5b338581f84b1a7a19ab5c29706c70062ef. 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/NLE801900738.
Darkness Disappears (feat. Niclas Lundin)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21ee0406131dd07bfe555028dd44f04b17a7a967ffcf2973139afacc26e43e2a. Chain 2 (Bitcoin): anchored in block 958185 (2026-07-15T18:19:04Z), 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/NLE802100530.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff0fc2bdae41af89aee2ae62db75e61628167a5c92f1c4ac77408e9087703903. 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/NLE802200300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45d71e3f70b93d11f2aa3afb6ee3785f77c29f8b2d26a352adfaed67dd6f9468. 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/NLE802000670.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadb29c9dd1cebfa8724ea480de925bb26cd84bf94be903fede207119a4bdb540. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/NLE801800318.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45d71e3f70b93d11f2aa3afb6ee3785f77c29f8b2d26a352adfaed67dd6f9468. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLE802000670.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadb29c9dd1cebfa8724ea480de925bb26cd84bf94be903fede207119a4bdb540. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/NLE801800318.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8352f1d79e113170624deac0458e1f6ca63aa2dd380e28ecf030a1e7f491a574. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T20:39:45Z), 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/NLE801800147.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60d0d35750029cc78b40f1f3b2d5a66d02c2c5b4405b5692ae49d1a679f1e3e0. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/NLC201500002.
Hate It Or Love It... This Is HARD with STYLE - ONE (Unmixed Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7f61ecd3fbf70c9065fcf7558f86ec2d7e6197f9a7c624f6dcfae2ff4c020a5. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/NLE9X1400007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e56bb1ef41369cb5b801d14f4cb57ffa512b6592fb5f2854bf92fa2d42f9dfb. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/NLE802100217.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5f98318173baac6f4559637a0d50a12e19d9bbeb53bde88871dedb4decbaaf1. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), 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/NLE801900001.